Initial commit

README.md

@@ -0,0 +1,15 @@
+Example Voting App
+==================
+
+This is an example Docker app with multiple services. It is run with Docker Compose and uses Docker Networking to connect containers together.
+
+
+Running
+-------
+
+Since this app makes use of Compose's experimental networking support, it must be started with:
+
+    $ cd vote-apps/
+    $ docker-compose --x-networking up -d
+
+The app will be running on port 5000 on your Docker host, and the results will be on port 5001.

vote-apps/docker-compose.yml

@@ -0,0 +1,25 @@
+voting-app:
+  build: ./voting-app/.
+  volumes:
+    - ./voting-app:/app
+  ports:
+    - "5000:80"
+
+redis:
+  image: redis
+  ports: ["6379"]
+
+worker:
+  build: ./worker
+
+db:
+  image: postgres:9.4
+  volumes:
+    - "myvolume:/var/lib/postgresql/data"
+
+result-app:
+  build: ./result-app/.
+  volumes:
+    - ./result-app:/app
+  ports:
+    - "5001:80"

vote-apps/result-app/Dockerfile

@@ -0,0 +1,15 @@
+FROM node:0.10
+
+RUN mkdir /app
+WORKDIR /app
+
+ADD package.json /app/package.json
+RUN npm install && npm ls
+RUN mv /app/node_modules /node_modules
+
+ADD . /app
+
+ENV PORT 80
+EXPOSE 80
+
+CMD ["node", "server.js"]

vote-apps/result-app/package.json

@@ -0,0 +1,20 @@
+{
+  "name": "result-app",
+  "version": "1.0.0",
+  "description": "",
+  "main": "server.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "author": "",
+  "license": "MIT",
+  "dependencies": {
+    "body-parser": "^1.14.1",
+    "cookie-parser": "^1.4.0",
+    "express": "^4.13.3",
+    "method-override": "^2.3.5",
+    "async": "^1.5.0",
+    "pg": "^4.4.3",
+    "socket.io": "^1.3.7"
+  }
+}

vote-apps/result-app/server.js

@@ -0,0 +1,78 @@
+var express = require('express'),
+    async = require('async'),
+    pg = require("pg"),
+    cookieParser = require('cookie-parser'),
+    bodyParser = require('body-parser'),
+    methodOverride = require('method-override'),
+    app = express(),
+    server = require('http').Server(app),
+    io = require('socket.io')(server);
+
+io.set('transports', ['polling']);
+
+var port = process.env.PORT || 4000;
+
+io.sockets.on('connection', function (socket) {
+
+  socket.emit('message', { text : 'Welcome!' });
+
+  socket.on('subscribe', function (data) {
+    socket.join(data.channel);
+  });
+});
+
+async.retry(
+  {times: 1000, interval: 1000},
+  function(callback) {
+    pg.connect('postgres://postgres@voteapps_db_1/postgres', function(err, client, done) {
+      if (err) {
+        console.error("Failed to connect to db");
+      }
+      callback(err, client);
+    });
+  },
+  function(err, client) {
+    if (err) {
+      return console.err("Giving up");
+    }
+    console.log("Connected to db");
+    getVotes(client);
+  }
+);
+
+function getVotes(client) {
+  client.query('SELECT vote, COUNT(id) AS count FROM votes GROUP BY vote', [], function(err, result) {
+    if (err) {
+      console.error("Error performing query: " + err);
+    } else {
+      var data = result.rows.reduce(function(obj, row) {
+        obj[row.vote] = row.count;
+        return obj;
+      }, {});
+      io.sockets.emit("scores", JSON.stringify(data));
+    }
+
+    setTimeout(function() {getVotes(client) }, 1000);
+  });
+}
+
+app.use(cookieParser());
+app.use(bodyParser());
+app.use(methodOverride('X-HTTP-Method-Override'));
+app.use(function(req, res, next) {
+  res.header("Access-Control-Allow-Origin", "*");
+  res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
+  res.header("Access-Control-Allow-Methods", "PUT, GET, POST, DELETE, OPTIONS");
+  next();
+});
+
+app.use(express.static(__dirname + '/views'));
+
+app.get('/', function (req, res) {
+  res.sendFile(path.resolve(__dirname + '/views/index.html'));
+});
+
+server.listen(port, function () {
+  var port = server.address().port;
+  console.log('App running on port ' + port);
+});

vote-apps/result-app/views/app.js

@@ -0,0 +1,45 @@
+var app = angular.module('catsvsdogs', []);
+var socket = io.connect({transports:['polling']});
+
+var bg1 = document.getElementById('background-stats-1');
+var bg2 = document.getElementById('background-stats-2');
+
+app.controller('statsCtrl', function($scope){
+  var animateStats = function(a,b){
+    if(a+b>0){
+      var percentA = a/(a+b)*100;
+      var percentB = 100-percentA;
+      bg1.style.width= percentA+"%";
+      bg2.style.width = percentB+"%";
+    }
+  };
+
+  $scope.aPercent = 50;
+  $scope.bPercent = 50;
+
+  var updateScores = function(){
+    socket.on('scores', function (json) {
+       data = JSON.parse(json);
+       var a = parseInt(data.a || 0);
+       var b = parseInt(data.b || 0);
+
+       animateStats(a, b);
+
+       $scope.$apply(function() {
+         if(a + b > 0){
+           $scope.aPercent = a/(a+b) * 100;
+           $scope.bPercent = b/(a+b) * 100;
+           $scope.total = a + b
+         }
+      });
+    });
+  };
+
+  var init = function(){
+    document.body.style.opacity=1;
+    updateScores();
+  };
+  socket.on('message',function(data){
+    init();
+  });
+});

vote-apps/result-app/views/index.html

@@ -0,0 +1,41 @@
+<!DOCTYPE html>
+<html ng-app="catsvsdogs">
+  <head>
+    <meta charset="utf-8">
+    <title>Cats vs Dogs -- Result</title>
+    <base href="/index.html">
+    <meta name = "viewport" content = "width=device-width, initial-scale = 1.0">
+    <meta name="keywords" content="docker-compose, docker, stack">
+    <meta name="author" content="Tutum dev team">
+    <link rel='stylesheet' href='/stylesheets/style.css' />
+  </head>
+  <body ng-controller="statsCtrl" >
+     <div id="background-stats">
+       <div id="background-stats-1">
+       </div><!--
+      --><div id="background-stats-2">
+      </div>
+    </div>
+    <div id="content-container">
+      <div id="content-container-center">
+        <div id="choice">
+          <div class="choice cats">
+            <div class="label">Cats</div>
+            <div class="stat">{{aPercent | number:1}}%</div>
+          </div>
+          <div class="divider"></div>
+          <div class="choice dogs">
+            <div class="label">Dogs</div>
+            <div class="stat">{{bPercent | number:1}}%</div>
+          </div>
+        </div>
+      </div>
+    </div>
+    <div id="result" ng-if="total > 100">
+      {{total}} votes
+    </div>
+    <script src="socket.io.js"></script>
+    <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.5/angular.min.js"></script>
+    <script src="app.js"></script>
+  </body>
+</html>

vote-apps/result-app/views/socket.io.js

@@ -0,0 +1,6988 @@
+!function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var f;"undefined"!=typeof window?f=window:"undefined"!=typeof global?f=global:"undefined"!=typeof self&&(f=self),f.io=e()}}(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);throw new Error("Cannot find module '"+o+"'")}var f=n[o]={exports:{}};t[o][0].call(f.exports,function(e){var n=t[o][1][e];return s(n?n:e)},f,f.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(_dereq_,module,exports){
+
+module.exports = _dereq_('./lib/');
+
+},{"./lib/":2}],2:[function(_dereq_,module,exports){
+
+/**
+ * Module dependencies.
+ */
+
+var url = _dereq_('./url');
+var parser = _dereq_('socket.io-parser');
+var Manager = _dereq_('./manager');
+var debug = _dereq_('debug')('socket.io-client');
+
+/**
+ * Module exports.
+ */
+
+module.exports = exports = lookup;
+
+/**
+ * Managers cache.
+ */
+
+var cache = exports.managers = {};
+
+/**
+ * Looks up an existing `Manager` for multiplexing.
+ * If the user summons:
+ *
+ *   `io('http://localhost/a');`
+ *   `io('http://localhost/b');`
+ *
+ * We reuse the existing instance based on same scheme/port/host,
+ * and we initialize sockets for each namespace.
+ *
+ * @api public
+ */
+
+function lookup(uri, opts) {
+  if (typeof uri == 'object') {
+    opts = uri;
+    uri = undefined;
+  }
+
+  opts = opts || {};
+
+  var parsed = url(uri);
+  var source = parsed.source;
+  var id = parsed.id;
+  var io;
+
+  if (opts.forceNew || opts['force new connection'] || false === opts.multiplex) {
+    debug('ignoring socket cache for %s', source);
+    io = Manager(source, opts);
+  } else {
+    if (!cache[id]) {
+      debug('new io instance for %s', source);
+      cache[id] = Manager(source, opts);
+    }
+    io = cache[id];
+  }
+
+  return io.socket(parsed.path);
+}
+
+/**
+ * Protocol version.
+ *
+ * @api public
+ */
+
+exports.protocol = parser.protocol;
+
+/**
+ * `connect`.
+ *
+ * @param {String} uri
+ * @api public
+ */
+
+exports.connect = lookup;
+
+/**
+ * Expose constructors for standalone build.
+ *
+ * @api public
+ */
+
+exports.Manager = _dereq_('./manager');
+exports.Socket = _dereq_('./socket');
+
+},{"./manager":3,"./socket":5,"./url":6,"debug":10,"socket.io-parser":44}],3:[function(_dereq_,module,exports){
+
+/**
+ * Module dependencies.
+ */
+
+var url = _dereq_('./url');
+var eio = _dereq_('engine.io-client');
+var Socket = _dereq_('./socket');
+var Emitter = _dereq_('component-emitter');
+var parser = _dereq_('socket.io-parser');
+var on = _dereq_('./on');
+var bind = _dereq_('component-bind');
+var object = _dereq_('object-component');
+var debug = _dereq_('debug')('socket.io-client:manager');
+var indexOf = _dereq_('indexof');
+var Backoff = _dereq_('backo2');
+
+/**
+ * Module exports
+ */
+
+module.exports = Manager;
+
+/**
+ * `Manager` constructor.
+ *
+ * @param {String} engine instance or engine uri/opts
+ * @param {Object} options
+ * @api public
+ */
+
+function Manager(uri, opts){
+  if (!(this instanceof Manager)) return new Manager(uri, opts);
+  if (uri && ('object' == typeof uri)) {
+    opts = uri;
+    uri = undefined;
+  }
+  opts = opts || {};
+
+  opts.path = opts.path || '/socket.io';
+  this.nsps = {};
+  this.subs = [];
+  this.opts = opts;
+  this.reconnection(opts.reconnection !== false);
+  this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);
+  this.reconnectionDelay(opts.reconnectionDelay || 1000);
+  this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);
+  this.randomizationFactor(opts.randomizationFactor || 0.5);
+  this.backoff = new Backoff({
+    min: this.reconnectionDelay(),
+    max: this.reconnectionDelayMax(),
+    jitter: this.randomizationFactor()
+  });
+  this.timeout(null == opts.timeout ? 20000 : opts.timeout);
+  this.readyState = 'closed';
+  this.uri = uri;
+  this.connected = [];
+  this.encoding = false;
+  this.packetBuffer = [];
+  this.encoder = new parser.Encoder();
+  this.decoder = new parser.Decoder();
+  this.autoConnect = opts.autoConnect !== false;
+  if (this.autoConnect) this.open();
+}
+
+/**
+ * Propagate given event to sockets and emit on `this`
+ *
+ * @api private
+ */
+
+Manager.prototype.emitAll = function() {
+  this.emit.apply(this, arguments);
+  for (var nsp in this.nsps) {
+    this.nsps[nsp].emit.apply(this.nsps[nsp], arguments);
+  }
+};
+
+/**
+ * Update `socket.id` of all sockets
+ *
+ * @api private
+ */
+
+Manager.prototype.updateSocketIds = function(){
+  for (var nsp in this.nsps) {
+    this.nsps[nsp].id = this.engine.id;
+  }
+};
+
+/**
+ * Mix in `Emitter`.
+ */
+
+Emitter(Manager.prototype);
+
+/**
+ * Sets the `reconnection` config.
+ *
+ * @param {Boolean} true/false if it should automatically reconnect
+ * @return {Manager} self or value
+ * @api public
+ */
+
+Manager.prototype.reconnection = function(v){
+  if (!arguments.length) return this._reconnection;
+  this._reconnection = !!v;
+  return this;
+};
+
+/**
+ * Sets the reconnection attempts config.
+ *
+ * @param {Number} max reconnection attempts before giving up
+ * @return {Manager} self or value
+ * @api public
+ */
+
+Manager.prototype.reconnectionAttempts = function(v){
+  if (!arguments.length) return this._reconnectionAttempts;
+  this._reconnectionAttempts = v;
+  return this;
+};
+
+/**
+ * Sets the delay between reconnections.
+ *
+ * @param {Number} delay
+ * @return {Manager} self or value
+ * @api public
+ */
+
+Manager.prototype.reconnectionDelay = function(v){
+  if (!arguments.length) return this._reconnectionDelay;
+  this._reconnectionDelay = v;
+  this.backoff && this.backoff.setMin(v);
+  return this;
+};
+
+Manager.prototype.randomizationFactor = function(v){
+  if (!arguments.length) return this._randomizationFactor;
+  this._randomizationFactor = v;
+  this.backoff && this.backoff.setJitter(v);
+  return this;
+};
+
+/**
+ * Sets the maximum delay between reconnections.
+ *
+ * @param {Number} delay
+ * @return {Manager} self or value
+ * @api public
+ */
+
+Manager.prototype.reconnectionDelayMax = function(v){
+  if (!arguments.length) return this._reconnectionDelayMax;
+  this._reconnectionDelayMax = v;
+  this.backoff && this.backoff.setMax(v);
+  return this;
+};
+
+/**
+ * Sets the connection timeout. `false` to disable
+ *
+ * @return {Manager} self or value
+ * @api public
+ */
+
+Manager.prototype.timeout = function(v){
+  if (!arguments.length) return this._timeout;
+  this._timeout = v;
+  return this;
+};
+
+/**
+ * Starts trying to reconnect if reconnection is enabled and we have not
+ * started reconnecting yet
+ *
+ * @api private
+ */
+
+Manager.prototype.maybeReconnectOnOpen = function() {
+  // Only try to reconnect if it's the first time we're connecting
+  if (!this.reconnecting && this._reconnection && this.backoff.attempts === 0) {
+    // keeps reconnection from firing twice for the same reconnection loop
+    this.reconnect();
+  }
+};
+
+
+/**
+ * Sets the current transport `socket`.
+ *
+ * @param {Function} optional, callback
+ * @return {Manager} self
+ * @api public
+ */
+
+Manager.prototype.open =
+Manager.prototype.connect = function(fn){
+  debug('readyState %s', this.readyState);
+  if (~this.readyState.indexOf('open')) return this;
+
+  debug('opening %s', this.uri);
+  this.engine = eio(this.uri, this.opts);
+  var socket = this.engine;
+  var self = this;
+  this.readyState = 'opening';
+  this.skipReconnect = false;
+
+  // emit `open`
+  var openSub = on(socket, 'open', function() {
+    self.onopen();
+    fn && fn();
+  });
+
+  // emit `connect_error`
+  var errorSub = on(socket, 'error', function(data){
+    debug('connect_error');
+    self.cleanup();
+    self.readyState = 'closed';
+    self.emitAll('connect_error', data);
+    if (fn) {
+      var err = new Error('Connection error');
+      err.data = data;
+      fn(err);
+    } else {
+      // Only do this if there is no fn to handle the error
+      self.maybeReconnectOnOpen();
+    }
+  });
+
+  // emit `connect_timeout`
+  if (false !== this._timeout) {
+    var timeout = this._timeout;
+    debug('connect attempt will timeout after %d', timeout);
+
+    // set timer
+    var timer = setTimeout(function(){
+      debug('connect attempt timed out after %d', timeout);
+      openSub.destroy();
+      socket.close();
+      socket.emit('error', 'timeout');
+      self.emitAll('connect_timeout', timeout);
+    }, timeout);
+
+    this.subs.push({
+      destroy: function(){
+        clearTimeout(timer);
+      }
+    });
+  }
+
+  this.subs.push(openSub);
+  this.subs.push(errorSub);
+
+  return this;
+};
+
+/**
+ * Called upon transport open.
+ *
+ * @api private
+ */
+
+Manager.prototype.onopen = function(){
+  debug('open');
+
+  // clear old subs
+  this.cleanup();
+
+  // mark as open
+  this.readyState = 'open';
+  this.emit('open');
+
+  // add new subs
+  var socket = this.engine;
+  this.subs.push(on(socket, 'data', bind(this, 'ondata')));
+  this.subs.push(on(this.decoder, 'decoded', bind(this, 'ondecoded')));
+  this.subs.push(on(socket, 'error', bind(this, 'onerror')));
+  this.subs.push(on(socket, 'close', bind(this, 'onclose')));
+};
+
+/**
+ * Called with data.
+ *
+ * @api private
+ */
+
+Manager.prototype.ondata = function(data){
+  this.decoder.add(data);
+};
+
+/**
+ * Called when parser fully decodes a packet.
+ *
+ * @api private
+ */
+
+Manager.prototype.ondecoded = function(packet) {
+  this.emit('packet', packet);
+};
+
+/**
+ * Called upon socket error.
+ *
+ * @api private
+ */
+
+Manager.prototype.onerror = function(err){
+  debug('error', err);
+  this.emitAll('error', err);
+};
+
+/**
+ * Creates a new socket for the given `nsp`.
+ *
+ * @return {Socket}
+ * @api public
+ */
+
+Manager.prototype.socket = function(nsp){
+  var socket = this.nsps[nsp];
+  if (!socket) {
+    socket = new Socket(this, nsp);
+    this.nsps[nsp] = socket;
+    var self = this;
+    socket.on('connect', function(){
+      socket.id = self.engine.id;
+      if (!~indexOf(self.connected, socket)) {
+        self.connected.push(socket);
+      }
+    });
+  }
+  return socket;
+};
+
+/**
+ * Called upon a socket close.
+ *
+ * @param {Socket} socket
+ */
+
+Manager.prototype.destroy = function(socket){
+  var index = indexOf(this.connected, socket);
+  if (~index) this.connected.splice(index, 1);
+  if (this.connected.length) return;
+
+  this.close();
+};
+
+/**
+ * Writes a packet.
+ *
+ * @param {Object} packet
+ * @api private
+ */
+
+Manager.prototype.packet = function(packet){
+  debug('writing packet %j', packet);
+  var self = this;
+
+  if (!self.encoding) {
+    // encode, then write to engine with result
+    self.encoding = true;
+    this.encoder.encode(packet, function(encodedPackets) {
+      for (var i = 0; i < encodedPackets.length; i++) {
+        self.engine.write(encodedPackets[i]);
+      }
+      self.encoding = false;
+      self.processPacketQueue();
+    });
+  } else { // add packet to the queue
+    self.packetBuffer.push(packet);
+  }
+};
+
+/**
+ * If packet buffer is non-empty, begins encoding the
+ * next packet in line.
+ *
+ * @api private
+ */
+
+Manager.prototype.processPacketQueue = function() {
+  if (this.packetBuffer.length > 0 && !this.encoding) {
+    var pack = this.packetBuffer.shift();
+    this.packet(pack);
+  }
+};
+
+/**
+ * Clean up transport subscriptions and packet buffer.
+ *
+ * @api private
+ */
+
+Manager.prototype.cleanup = function(){
+  var sub;
+  while (sub = this.subs.shift()) sub.destroy();
+
+  this.packetBuffer = [];
+  this.encoding = false;
+
+  this.decoder.destroy();
+};
+
+/**
+ * Close the current socket.
+ *
+ * @api private
+ */
+
+Manager.prototype.close =
+Manager.prototype.disconnect = function(){
+  this.skipReconnect = true;
+  this.backoff.reset();
+  this.readyState = 'closed';
+  this.engine && this.engine.close();
+};
+
+/**
+ * Called upon engine close.
+ *
+ * @api private
+ */
+
+Manager.prototype.onclose = function(reason){
+  debug('close');
+  this.cleanup();
+  this.backoff.reset();
+  this.readyState = 'closed';
+  this.emit('close', reason);
+  if (this._reconnection && !this.skipReconnect) {
+    this.reconnect();
+  }
+};
+
+/**
+ * Attempt a reconnection.
+ *
+ * @api private
+ */
+
+Manager.prototype.reconnect = function(){
+  if (this.reconnecting || this.skipReconnect) return this;
+
+  var self = this;
+
+  if (this.backoff.attempts >= this._reconnectionAttempts) {
+    debug('reconnect failed');
+    this.backoff.reset();
+    this.emitAll('reconnect_failed');
+    this.reconnecting = false;
+  } else {
+    var delay = this.backoff.duration();
+    debug('will wait %dms before reconnect attempt', delay);
+
+    this.reconnecting = true;
+    var timer = setTimeout(function(){
+      if (self.skipReconnect) return;
+
+      debug('attempting reconnect');
+      self.emitAll('reconnect_attempt', self.backoff.attempts);
+      self.emitAll('reconnecting', self.backoff.attempts);
+
+      // check again for the case socket closed in above events
+      if (self.skipReconnect) return;
+
+      self.open(function(err){
+        if (err) {
+          debug('reconnect attempt error');
+          self.reconnecting = false;
+          self.reconnect();
+          self.emitAll('reconnect_error', err.data);
+        } else {
+          debug('reconnect success');
+          self.onreconnect();
+        }
+      });
+    }, delay);
+
+    this.subs.push({
+      destroy: function(){
+        clearTimeout(timer);
+      }
+    });
+  }
+};
+
+/**
+ * Called upon successful reconnect.
+ *
+ * @api private
+ */
+
+Manager.prototype.onreconnect = function(){
+  var attempt = this.backoff.attempts;
+  this.reconnecting = false;
+  this.backoff.reset();
+  this.updateSocketIds();
+  this.emitAll('reconnect', attempt);
+};
+
+},{"./on":4,"./socket":5,"./url":6,"backo2":7,"component-bind":8,"component-emitter":9,"debug":10,"engine.io-client":11,"indexof":40,"object-component":41,"socket.io-parser":44}],4:[function(_dereq_,module,exports){
+
+/**
+ * Module exports.
+ */
+
+module.exports = on;
+
+/**
+ * Helper for subscriptions.
+ *
+ * @param {Object|EventEmitter} obj with `Emitter` mixin or `EventEmitter`
+ * @param {String} event name
+ * @param {Function} callback
+ * @api public
+ */
+
+function on(obj, ev, fn) {
+  obj.on(ev, fn);
+  return {
+    destroy: function(){
+      obj.removeListener(ev, fn);
+    }
+  };
+}
+
+},{}],5:[function(_dereq_,module,exports){
+
+/**
+ * Module dependencies.
+ */
+
+var parser = _dereq_('socket.io-parser');
+var Emitter = _dereq_('component-emitter');
+var toArray = _dereq_('to-array');
+var on = _dereq_('./on');
+var bind = _dereq_('component-bind');
+var debug = _dereq_('debug')('socket.io-client:socket');
+var hasBin = _dereq_('has-binary');
+
+/**
+ * Module exports.
+ */
+
+module.exports = exports = Socket;
+
+/**
+ * Internal events (blacklisted).
+ * These events can't be emitted by the user.
+ *
+ * @api private
+ */
+
+var events = {
+  connect: 1,
+  connect_error: 1,
+  connect_timeout: 1,
+  disconnect: 1,
+  error: 1,
+  reconnect: 1,
+  reconnect_attempt: 1,
+  reconnect_failed: 1,
+  reconnect_error: 1,
+  reconnecting: 1
+};
+
+/**
+ * Shortcut to `Emitter#emit`.
+ */
+
+var emit = Emitter.prototype.emit;
+
+/**
+ * `Socket` constructor.
+ *
+ * @api public
+ */
+
+function Socket(io, nsp){
+  this.io = io;
+  this.nsp = nsp;
+  this.json = this; // compat
+  this.ids = 0;
+  this.acks = {};
+  if (this.io.autoConnect) this.open();
+  this.receiveBuffer = [];
+  this.sendBuffer = [];
+  this.connected = false;
+  this.disconnected = true;
+}
+
+/**
+ * Mix in `Emitter`.
+ */
+
+Emitter(Socket.prototype);
+
+/**
+ * Subscribe to open, close and packet events
+ *
+ * @api private
+ */
+
+Socket.prototype.subEvents = function() {
+  if (this.subs) return;
+
+  var io = this.io;
+  this.subs = [
+    on(io, 'open', bind(this, 'onopen')),
+    on(io, 'packet', bind(this, 'onpacket')),
+    on(io, 'close', bind(this, 'onclose'))
+  ];
+};
+
+/**
+ * "Opens" the socket.
+ *
+ * @api public
+ */
+
+Socket.prototype.open =
+Socket.prototype.connect = function(){
+  if (this.connected) return this;
+
+  this.subEvents();
+  this.io.open(); // ensure open
+  if ('open' == this.io.readyState) this.onopen();
+  return this;
+};
+
+/**
+ * Sends a `message` event.
+ *
+ * @return {Socket} self
+ * @api public
+ */
+
+Socket.prototype.send = function(){
+  var args = toArray(arguments);
+  args.unshift('message');
+  this.emit.apply(this, args);
+  return this;
+};
+
+/**
+ * Override `emit`.
+ * If the event is in `events`, it's emitted normally.
+ *
+ * @param {String} event name
+ * @return {Socket} self
+ * @api public
+ */
+
+Socket.prototype.emit = function(ev){
+  if (events.hasOwnProperty(ev)) {
+    emit.apply(this, arguments);
+    return this;
+  }
+
+  var args = toArray(arguments);
+  var parserType = parser.EVENT; // default
+  if (hasBin(args)) { parserType = parser.BINARY_EVENT; } // binary
+  var packet = { type: parserType, data: args };
+
+  // event ack callback
+  if ('function' == typeof args[args.length - 1]) {
+    debug('emitting packet with ack id %d', this.ids);
+    this.acks[this.ids] = args.pop();
+    packet.id = this.ids++;
+  }
+
+  if (this.connected) {
+    this.packet(packet);
+  } else {
+    this.sendBuffer.push(packet);
+  }
+
+  return this;
+};
+
+/**
+ * Sends a packet.
+ *
+ * @param {Object} packet
+ * @api private
+ */
+
+Socket.prototype.packet = function(packet){
+  packet.nsp = this.nsp;
+  this.io.packet(packet);
+};
+
+/**
+ * Called upon engine `open`.
+ *
+ * @api private
+ */
+
+Socket.prototype.onopen = function(){
+  debug('transport is open - connecting');
+
+  // write connect packet if necessary
+  if ('/' != this.nsp) {
+    this.packet({ type: parser.CONNECT });
+  }
+};
+
+/**
+ * Called upon engine `close`.
+ *
+ * @param {String} reason
+ * @api private
+ */
+
+Socket.prototype.onclose = function(reason){
+  debug('close (%s)', reason);
+  this.connected = false;
+  this.disconnected = true;
+  delete this.id;
+  this.emit('disconnect', reason);
+};
+
+/**
+ * Called with socket packet.
+ *
+ * @param {Object} packet
+ * @api private
+ */
+
+Socket.prototype.onpacket = function(packet){
+  if (packet.nsp != this.nsp) return;
+
+  switch (packet.type) {
+    case parser.CONNECT:
+      this.onconnect();
+      break;
+
+    case parser.EVENT:
+      this.onevent(packet);
+      break;
+
+    case parser.BINARY_EVENT:
+      this.onevent(packet);
+      break;
+
+    case parser.ACK:
+      this.onack(packet);
+      break;
+
+    case parser.BINARY_ACK:
+      this.onack(packet);
+      break;
+
+    case parser.DISCONNECT:
+      this.ondisconnect();
+      break;
+
+    case parser.ERROR:
+      this.emit('error', packet.data);
+      break;
+  }
+};
+
+/**
+ * Called upon a server event.
+ *
+ * @param {Object} packet
+ * @api private
+ */
+
+Socket.prototype.onevent = function(packet){
+  var args = packet.data || [];
+  debug('emitting event %j', args);
+
+  if (null != packet.id) {
+    debug('attaching ack callback to event');
+    args.push(this.ack(packet.id));
+  }
+
+  if (this.connected) {
+    emit.apply(this, args);
+  } else {
+    this.receiveBuffer.push(args);
+  }
+};
+
+/**
+ * Produces an ack callback to emit with an event.
+ *
+ * @api private
+ */
+
+Socket.prototype.ack = function(id){
+  var self = this;
+  var sent = false;
+  return function(){
+    // prevent double callbacks
+    if (sent) return;
+    sent = true;
+    var args = toArray(arguments);
+    debug('sending ack %j', args);
+
+    var type = hasBin(args) ? parser.BINARY_ACK : parser.ACK;
+    self.packet({
+      type: type,
+      id: id,
+      data: args
+    });
+  };
+};
+
+/**
+ * Called upon a server acknowlegement.
+ *
+ * @param {Object} packet
+ * @api private
+ */
+
+Socket.prototype.onack = function(packet){
+  debug('calling ack %s with %j', packet.id, packet.data);
+  var fn = this.acks[packet.id];
+  fn.apply(this, packet.data);
+  delete this.acks[packet.id];
+};
+
+/**
+ * Called upon server connect.
+ *
+ * @api private
+ */
+
+Socket.prototype.onconnect = function(){
+  this.connected = true;
+  this.disconnected = false;
+  this.emit('connect');
+  this.emitBuffered();
+};
+
+/**
+ * Emit buffered events (received and emitted).
+ *
+ * @api private
+ */
+
+Socket.prototype.emitBuffered = function(){
+  var i;
+  for (i = 0; i < this.receiveBuffer.length; i++) {
+    emit.apply(this, this.receiveBuffer[i]);
+  }
+  this.receiveBuffer = [];
+
+  for (i = 0; i < this.sendBuffer.length; i++) {
+    this.packet(this.sendBuffer[i]);
+  }
+  this.sendBuffer = [];
+};
+
+/**
+ * Called upon server disconnect.
+ *
+ * @api private
+ */
+
+Socket.prototype.ondisconnect = function(){
+  debug('server disconnect (%s)', this.nsp);
+  this.destroy();
+  this.onclose('io server disconnect');
+};
+
+/**
+ * Called upon forced client/server side disconnections,
+ * this method ensures the manager stops tracking us and
+ * that reconnections don't get triggered for this.
+ *
+ * @api private.
+ */
+
+Socket.prototype.destroy = function(){
+  if (this.subs) {
+    // clean subscriptions to avoid reconnections
+    for (var i = 0; i < this.subs.length; i++) {
+      this.subs[i].destroy();
+    }
+    this.subs = null;
+  }
+
+  this.io.destroy(this);
+};
+
+/**
+ * Disconnects the socket manually.
+ *
+ * @return {Socket} self
+ * @api public
+ */
+
+Socket.prototype.close =
+Socket.prototype.disconnect = function(){
+  if (this.connected) {
+    debug('performing disconnect (%s)', this.nsp);
+    this.packet({ type: parser.DISCONNECT });
+  }
+
+  // remove socket from pool
+  this.destroy();
+
+  if (this.connected) {
+    // fire events
+    this.onclose('io client disconnect');
+  }
+  return this;
+};
+
+},{"./on":4,"component-bind":8,"component-emitter":9,"debug":10,"has-binary":36,"socket.io-parser":44,"to-array":48}],6:[function(_dereq_,module,exports){
+(function (global){
+
+/**
+ * Module dependencies.
+ */
+
+var parseuri = _dereq_('parseuri');
+var debug = _dereq_('debug')('socket.io-client:url');
+
+/**
+ * Module exports.
+ */
+
+module.exports = url;
+
+/**
+ * URL parser.
+ *
+ * @param {String} url
+ * @param {Object} An object meant to mimic window.location.
+ *                 Defaults to window.location.
+ * @api public
+ */
+
+function url(uri, loc){
+  var obj = uri;
+
+  // default to window.location
+  var loc = loc || global.location;
+  if (null == uri) uri = loc.protocol + '//' + loc.host;
+
+  // relative path support
+  if ('string' == typeof uri) {
+    if ('/' == uri.charAt(0)) {
+      if ('/' == uri.charAt(1)) {
+        uri = loc.protocol + uri;
+      } else {
+        uri = loc.hostname + uri;
+      }
+    }
+
+    if (!/^(https?|wss?):\/\//.test(uri)) {
+      debug('protocol-less url %s', uri);
+      if ('undefined' != typeof loc) {
+        uri = loc.protocol + '//' + uri;
+      } else {
+        uri = 'https://' + uri;
+      }
+    }
+
+    // parse
+    debug('parse %s', uri);
+    obj = parseuri(uri);
+  }
+
+  // make sure we treat `localhost:80` and `localhost` equally
+  if (!obj.port) {
+    if (/^(http|ws)$/.test(obj.protocol)) {
+      obj.port = '80';
+    }
+    else if (/^(http|ws)s$/.test(obj.protocol)) {
+      obj.port = '443';
+    }
+  }
+
+  obj.path = obj.path || '/';
+
+  // define unique id
+  obj.id = obj.protocol + '://' + obj.host + ':' + obj.port;
+  // define href
+  obj.href = obj.protocol + '://' + obj.host + (loc && loc.port == obj.port ? '' : (':' + obj.port));
+
+  return obj;
+}
+
+}).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"debug":10,"parseuri":42}],7:[function(_dereq_,module,exports){
+
+/**
+ * Expose `Backoff`.
+ */
+
+module.exports = Backoff;
+
+/**
+ * Initialize backoff timer with `opts`.
+ *
+ * - `min` initial timeout in milliseconds [100]
+ * - `max` max timeout [10000]
+ * - `jitter` [0]
+ * - `factor` [2]
+ *
+ * @param {Object} opts
+ * @api public
+ */
+
+function Backoff(opts) {
+  opts = opts || {};
+  this.ms = opts.min || 100;
+  this.max = opts.max || 10000;
+  this.factor = opts.factor || 2;
+  this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;
+  this.attempts = 0;
+}
+
+/**
+ * Return the backoff duration.
+ *
+ * @return {Number}
+ * @api public
+ */
+
+Backoff.prototype.duration = function(){
+  var ms = this.ms * Math.pow(this.factor, this.attempts++);
+  if (this.jitter) {
+    var rand =  Math.random();
+    var deviation = Math.floor(rand * this.jitter * ms);
+    ms = (Math.floor(rand * 10) & 1) == 0  ? ms - deviation : ms + deviation;
+  }
+  return Math.min(ms, this.max) | 0;
+};
+
+/**
+ * Reset the number of attempts.
+ *
+ * @api public
+ */
+
+Backoff.prototype.reset = function(){
+  this.attempts = 0;
+};
+
+/**
+ * Set the minimum duration
+ *
+ * @api public
+ */
+
+Backoff.prototype.setMin = function(min){
+  this.ms = min;
+};
+
+/**
+ * Set the maximum duration
+ *
+ * @api public
+ */
+
+Backoff.prototype.setMax = function(max){
+  this.max = max;
+};
+
+/**
+ * Set the jitter
+ *
+ * @api public
+ */
+
+Backoff.prototype.setJitter = function(jitter){
+  this.jitter = jitter;
+};
+
+
+},{}],8:[function(_dereq_,module,exports){
+/**
+ * Slice reference.
+ */
+
+var slice = [].slice;
+
+/**
+ * Bind `obj` to `fn`.
+ *
+ * @param {Object} obj
+ * @param {Function|String} fn or string
+ * @return {Function}
+ * @api public
+ */
+
+module.exports = function(obj, fn){
+  if ('string' == typeof fn) fn = obj[fn];
+  if ('function' != typeof fn) throw new Error('bind() requires a function');
+  var args = slice.call(arguments, 2);
+  return function(){
+    return fn.apply(obj, args.concat(slice.call(arguments)));
+  }
+};
+
+},{}],9:[function(_dereq_,module,exports){
+
+/**
+ * Expose `Emitter`.
+ */
+
+module.exports = Emitter;
+
+/**
+ * Initialize a new `Emitter`.
+ *
+ * @api public
+ */
+
+function Emitter(obj) {
+  if (obj) return mixin(obj);
+};
+
+/**
+ * Mixin the emitter properties.
+ *
+ * @param {Object} obj
+ * @return {Object}
+ * @api private
+ */
+
+function mixin(obj) {
+  for (var key in Emitter.prototype) {
+    obj[key] = Emitter.prototype[key];
+  }
+  return obj;
+}
+
+/**
+ * Listen on the given `event` with `fn`.
+ *
+ * @param {String} event
+ * @param {Function} fn
+ * @return {Emitter}
+ * @api public
+ */
+
+Emitter.prototype.on =
+Emitter.prototype.addEventListener = function(event, fn){
+  this._callbacks = this._callbacks || {};
+  (this._callbacks[event] = this._callbacks[event] || [])
+    .push(fn);
+  return this;
+};
+
+/**
+ * Adds an `event` listener that will be invoked a single
+ * time then automatically removed.
+ *
+ * @param {String} event
+ * @param {Function} fn
+ * @return {Emitter}
+ * @api public
+ */
+
+Emitter.prototype.once = function(event, fn){
+  var self = this;
+  this._callbacks = this._callbacks || {};
+
+  function on() {
+    self.off(event, on);
+    fn.apply(this, arguments);
+  }
+
+  on.fn = fn;
+  this.on(event, on);
+  return this;
+};
+
+/**
+ * Remove the given callback for `event` or all
+ * registered callbacks.
+ *
+ * @param {String} event
+ * @param {Function} fn
+ * @return {Emitter}
+ * @api public
+ */
+
+Emitter.prototype.off =
+Emitter.prototype.removeListener =
+Emitter.prototype.removeAllListeners =
+Emitter.prototype.removeEventListener = function(event, fn){
+  this._callbacks = this._callbacks || {};
+
+  // all
+  if (0 == arguments.length) {
+    this._callbacks = {};
+    return this;
+  }
+
+  // specific event
+  var callbacks = this._callbacks[event];
+  if (!callbacks) return this;
+
+  // remove all handlers
+  if (1 == arguments.length) {
+    delete this._callbacks[event];
+    return this;
+  }
+
+  // remove specific handler
+  var cb;
+  for (var i = 0; i < callbacks.length; i++) {
+    cb = callbacks[i];
+    if (cb === fn || cb.fn === fn) {
+      callbacks.splice(i, 1);
+      break;
+    }
+  }
+  return this;
+};
+
+/**
+ * Emit `event` with the given args.
+ *
+ * @param {String} event
+ * @param {Mixed} ...
+ * @return {Emitter}
+ */
+
+Emitter.prototype.emit = function(event){
+  this._callbacks = this._callbacks || {};
+  var args = [].slice.call(arguments, 1)
+    , callbacks = this._callbacks[event];
+
+  if (callbacks) {
+    callbacks = callbacks.slice(0);
+    for (var i = 0, len = callbacks.length; i < len; ++i) {
+      callbacks[i].apply(this, args);
+    }
+  }
+
+  return this;
+};
+
+/**
+ * Return array of callbacks for `event`.
+ *
+ * @param {String} event
+ * @return {Array}
+ * @api public
+ */
+
+Emitter.prototype.listeners = function(event){
+  this._callbacks = this._callbacks || {};
+  return this._callbacks[event] || [];
+};
+
+/**
+ * Check if this emitter has `event` handlers.
+ *
+ * @param {String} event
+ * @return {Boolean}
+ * @api public
+ */
+
+Emitter.prototype.hasListeners = function(event){
+  return !! this.listeners(event).length;
+};
+
+},{}],10:[function(_dereq_,module,exports){
+
+/**
+ * Expose `debug()` as the module.
+ */
+
+module.exports = debug;
+
+/**
+ * Create a debugger with the given `name`.
+ *
+ * @param {String} name
+ * @return {Type}
+ * @api public
+ */
+
+function debug(name) {
+  if (!debug.enabled(name)) return function(){};
+
+  return function(fmt){
+    fmt = coerce(fmt);
+
+    var curr = new Date;
+    var ms = curr - (debug[name] || curr);
+    debug[name] = curr;
+
+    fmt = name
+      + ' '
+      + fmt
+      + ' +' + debug.humanize(ms);
+
+    // This hackery is required for IE8
+    // where `console.log` doesn't have 'apply'
+    window.console
+      && console.log
+      && Function.prototype.apply.call(console.log, console, arguments);
+  }
+}
+
+/**
+ * The currently active debug mode names.
+ */
+
+debug.names = [];
+debug.skips = [];
+
+/**
+ * Enables a debug mode by name. This can include modes
+ * separated by a colon and wildcards.
+ *
+ * @param {String} name
+ * @api public
+ */
+
+debug.enable = function(name) {
+  try {
+    localStorage.debug = name;
+  } catch(e){}
+
+  var split = (name || '').split(/[\s,]+/)
+    , len = split.length;
+
+  for (var i = 0; i < len; i++) {
+    name = split[i].replace('*', '.*?');
+    if (name[0] === '-') {
+      debug.skips.push(new RegExp('^' + name.substr(1) + '$'));
+    }
+    else {
+      debug.names.push(new RegExp('^' + name + '$'));
+    }
+  }
+};
+
+/**
+ * Disable debug output.
+ *
+ * @api public
+ */
+
+debug.disable = function(){
+  debug.enable('');
+};
+
+/**
+ * Humanize the given `ms`.
+ *
+ * @param {Number} m
+ * @return {String}
+ * @api private
+ */
+
+debug.humanize = function(ms) {
+  var sec = 1000
+    , min = 60 * 1000
+    , hour = 60 * min;
+
+  if (ms >= hour) return (ms / hour).toFixed(1) + 'h';
+  if (ms >= min) return (ms / min).toFixed(1) + 'm';
+  if (ms >= sec) return (ms / sec | 0) + 's';
+  return ms + 'ms';
+};
+
+/**
+ * Returns true if the given mode name is enabled, false otherwise.
+ *
+ * @param {String} name
+ * @return {Boolean}
+ * @api public
+ */
+
+debug.enabled = function(name) {
+  for (var i = 0, len = debug.skips.length; i < len; i++) {
+    if (debug.skips[i].test(name)) {
+      return false;
+    }
+  }
+  for (var i = 0, len = debug.names.length; i < len; i++) {
+    if (debug.names[i].test(name)) {
+      return true;
+    }
+  }
+  return false;
+};
+
+/**
+ * Coerce `val`.
+ */
+
+function coerce(val) {
+  if (val instanceof Error) return val.stack || val.message;
+  return val;
+}
+
+// persist
+
+try {
+  if (window.localStorage) debug.enable(localStorage.debug);
+} catch(e){}
+
+},{}],11:[function(_dereq_,module,exports){
+
+module.exports =  _dereq_('./lib/');
+
+},{"./lib/":12}],12:[function(_dereq_,module,exports){
+
+module.exports = _dereq_('./socket');
+
+/**
+ * Exports parser
+ *
+ * @api public
+ *
+ */
+module.exports.parser = _dereq_('engine.io-parser');
+
+},{"./socket":13,"engine.io-parser":25}],13:[function(_dereq_,module,exports){
+(function (global){
+/**
+ * Module dependencies.
+ */
+
+var transports = _dereq_('./transports');
+var Emitter = _dereq_('component-emitter');
+var debug = _dereq_('debug')('engine.io-client:socket');
+var index = _dereq_('indexof');
+var parser = _dereq_('engine.io-parser');
+var parseuri = _dereq_('parseuri');
+var parsejson = _dereq_('parsejson');
+var parseqs = _dereq_('parseqs');
+
+/**
+ * Module exports.
+ */
+
+module.exports = Socket;
+
+/**
+ * Noop function.
+ *
+ * @api private
+ */
+
+function noop(){}
+
+/**
+ * Socket constructor.
+ *
+ * @param {String|Object} uri or options
+ * @param {Object} options
+ * @api public
+ */
+
+function Socket(uri, opts){
+  if (!(this instanceof Socket)) return new Socket(uri, opts);
+
+  opts = opts || {};
+
+  if (uri && 'object' == typeof uri) {
+    opts = uri;
+    uri = null;
+  }
+
+  if (uri) {
+    uri = parseuri(uri);
+    opts.host = uri.host;
+    opts.secure = uri.protocol == 'https' || uri.protocol == 'wss';
+    opts.port = uri.port;
+    if (uri.query) opts.query = uri.query;
+  }
+
+  this.secure = null != opts.secure ? opts.secure :
+    (global.location && 'https:' == location.protocol);
+
+  if (opts.host) {
+    var pieces = opts.host.split(':');
+    opts.hostname = pieces.shift();
+    if (pieces.length) {
+      opts.port = pieces.pop();
+    } else if (!opts.port) {
+      // if no port is specified manually, use the protocol default
+      opts.port = this.secure ? '443' : '80';
+    }
+  }
+
+  this.agent = opts.agent || false;
+  this.hostname = opts.hostname ||
+    (global.location ? location.hostname : 'localhost');
+  this.port = opts.port || (global.location && location.port ?
+       location.port :
+       (this.secure ? 443 : 80));
+  this.query = opts.query || {};
+  if ('string' == typeof this.query) this.query = parseqs.decode(this.query);
+  this.upgrade = false !== opts.upgrade;
+  this.path = (opts.path || '/engine.io').replace(/\/$/, '') + '/';
+  this.forceJSONP = !!opts.forceJSONP;
+  this.jsonp = false !== opts.jsonp;
+  this.forceBase64 = !!opts.forceBase64;
+  this.enablesXDR = !!opts.enablesXDR;
+  this.timestampParam = opts.timestampParam || 't';
+  this.timestampRequests = opts.timestampRequests;
+  this.transports = opts.transports || ['polling', 'websocket'];
+  this.readyState = '';
+  this.writeBuffer = [];
+  this.callbackBuffer = [];
+  this.policyPort = opts.policyPort || 843;
+  this.rememberUpgrade = opts.rememberUpgrade || false;
+  this.binaryType = null;
+  this.onlyBinaryUpgrades = opts.onlyBinaryUpgrades;
+
+  // SSL options for Node.js client
+  this.pfx = opts.pfx || null;
+  this.key = opts.key || null;
+  this.passphrase = opts.passphrase || null;
+  this.cert = opts.cert || null;
+  this.ca = opts.ca || null;
+  this.ciphers = opts.ciphers || null;
+  this.rejectUnauthorized = opts.rejectUnauthorized || null;
+
+  this.open();
+}
+
+Socket.priorWebsocketSuccess = false;
+
+/**
+ * Mix in `Emitter`.
+ */
+
+Emitter(Socket.prototype);
+
+/**
+ * Protocol version.
+ *
+ * @api public
+ */
+
+Socket.protocol = parser.protocol; // this is an int
+
+/**
+ * Expose deps for legacy compatibility
+ * and standalone browser access.
+ */
+
+Socket.Socket = Socket;
+Socket.Transport = _dereq_('./transport');
+Socket.transports = _dereq_('./transports');
+Socket.parser = _dereq_('engine.io-parser');
+
+/**
+ * Creates transport of the given type.
+ *
+ * @param {String} transport name
+ * @return {Transport}
+ * @api private
+ */
+
+Socket.prototype.createTransport = function (name) {
+  debug('creating transport "%s"', name);
+  var query = clone(this.query);
+
+  // append engine.io protocol identifier
+  query.EIO = parser.protocol;
+
+  // transport name
+  query.transport = name;
+
+  // session id if we already have one
+  if (this.id) query.sid = this.id;
+
+  var transport = new transports[name]({
+    agent: this.agent,
+    hostname: this.hostname,
+    port: this.port,
+    secure: this.secure,
+    path: this.path,
+    query: query,
+    forceJSONP: this.forceJSONP,
+    jsonp: this.jsonp,
+    forceBase64: this.forceBase64,
+    enablesXDR: this.enablesXDR,
+    timestampRequests: this.timestampRequests,
+    timestampParam: this.timestampParam,
+    policyPort: this.policyPort,
+    socket: this,
+    pfx: this.pfx,
+    key: this.key,
+    passphrase: this.passphrase,
+    cert: this.cert,
+    ca: this.ca,
+    ciphers: this.ciphers,
+    rejectUnauthorized: this.rejectUnauthorized
+  });
+
+  return transport;
+};
+
+function clone (obj) {
+  var o = {};
+  for (var i in obj) {
+    if (obj.hasOwnProperty(i)) {
+      o[i] = obj[i];
+    }
+  }
+  return o;
+}
+
+/**
+ * Initializes transport to use and starts probe.
+ *
+ * @api private
+ */
+Socket.prototype.open = function () {
+  var transport;
+  if (this.rememberUpgrade && Socket.priorWebsocketSuccess && this.transports.indexOf('websocket') != -1) {
+    transport = 'websocket';
+  } else if (0 == this.transports.length) {
+    // Emit error on next tick so it can be listened to
+    var self = this;
+    setTimeout(function() {
+      self.emit('error', 'No transports available');
+    }, 0);
+    return;
+  } else {
+    transport = this.transports[0];
+  }
+  this.readyState = 'opening';
+
+  // Retry with the next transport if the transport is disabled (jsonp: false)
+  var transport;
+  try {
+    transport = this.createTransport(transport);
+  } catch (e) {
+    this.transports.shift();
+    this.open();
+    return;
+  }
+
+  transport.open();
+  this.setTransport(transport);
+};
+
+/**
+ * Sets the current transport. Disables the existing one (if any).
+ *
+ * @api private
+ */
+
+Socket.prototype.setTransport = function(transport){
+  debug('setting transport %s', transport.name);
+  var self = this;
+
+  if (this.transport) {
+    debug('clearing existing transport %s', this.transport.name);
+    this.transport.removeAllListeners();
+  }
+
+  // set up transport
+  this.transport = transport;
+
+  // set up transport listeners
+  transport
+  .on('drain', function(){
+    self.onDrain();
+  })
+  .on('packet', function(packet){
+    self.onPacket(packet);
+  })
+  .on('error', function(e){
+    self.onError(e);
+  })
+  .on('close', function(){
+    self.onClose('transport close');
+  });
+};
+
+/**
+ * Probes a transport.
+ *
+ * @param {String} transport name
+ * @api private
+ */
+
+Socket.prototype.probe = function (name) {
+  debug('probing transport "%s"', name);
+  var transport = this.createTransport(name, { probe: 1 })
+    , failed = false
+    , self = this;
+
+  Socket.priorWebsocketSuccess = false;
+
+  function onTransportOpen(){
+    if (self.onlyBinaryUpgrades) {
+      var upgradeLosesBinary = !this.supportsBinary && self.transport.supportsBinary;
+      failed = failed || upgradeLosesBinary;
+    }
+    if (failed) return;
+
+    debug('probe transport "%s" opened', name);
+    transport.send([{ type: 'ping', data: 'probe' }]);
+    transport.once('packet', function (msg) {
+      if (failed) return;
+      if ('pong' == msg.type && 'probe' == msg.data) {
+        debug('probe transport "%s" pong', name);
+        self.upgrading = true;
+        self.emit('upgrading', transport);
+        if (!transport) return;
+        Socket.priorWebsocketSuccess = 'websocket' == transport.name;
+
+        debug('pausing current transport "%s"', self.transport.name);
+        self.transport.pause(function () {
+          if (failed) return;
+          if ('closed' == self.readyState) return;
+          debug('changing transport and sending upgrade packet');
+
+          cleanup();
+
+          self.setTransport(transport);
+          transport.send([{ type: 'upgrade' }]);
+          self.emit('upgrade', transport);
+          transport = null;
+          self.upgrading = false;
+          self.flush();
+        });
+      } else {
+        debug('probe transport "%s" failed', name);
+        var err = new Error('probe error');
+        err.transport = transport.name;
+        self.emit('upgradeError', err);
+      }
+    });
+  }
+
+  function freezeTransport() {
+    if (failed) return;
+
+    // Any callback called by transport should be ignored since now
+    failed = true;
+
+    cleanup();
+
+    transport.close();
+    transport = null;
+  }
+
+  //Handle any error that happens while probing
+  function onerror(err) {
+    var error = new Error('probe error: ' + err);
+    error.transport = transport.name;
+
+    freezeTransport();
+
+    debug('probe transport "%s" failed because of error: %s', name, err);
+
+    self.emit('upgradeError', error);
+  }
+
+  function onTransportClose(){
+    onerror("transport closed");
+  }
+
+  //When the socket is closed while we're probing
+  function onclose(){
+    onerror("socket closed");
+  }
+
+  //When the socket is upgraded while we're probing
+  function onupgrade(to){
+    if (transport && to.name != transport.name) {
+      debug('"%s" works - aborting "%s"', to.name, transport.name);
+      freezeTransport();
+    }
+  }
+
+  //Remove all listeners on the transport and on self
+  function cleanup(){
+    transport.removeListener('open', onTransportOpen);
+    transport.removeListener('error', onerror);
+    transport.removeListener('close', onTransportClose);
+    self.removeListener('close', onclose);
+    self.removeListener('upgrading', onupgrade);
+  }
+
+  transport.once('open', onTransportOpen);
+  transport.once('error', onerror);
+  transport.once('close', onTransportClose);
+
+  this.once('close', onclose);
+  this.once('upgrading', onupgrade);
+
+  transport.open();
+
+};
+
+/**
+ * Called when connection is deemed open.
+ *
+ * @api public
+ */
+
+Socket.prototype.onOpen = function () {
+  debug('socket open');
+  this.readyState = 'open';
+  Socket.priorWebsocketSuccess = 'websocket' == this.transport.name;
+  this.emit('open');
+  this.flush();
+
+  // we check for `readyState` in case an `open`
+  // listener already closed the socket
+  if ('open' == this.readyState && this.upgrade && this.transport.pause) {
+    debug('starting upgrade probes');
+    for (var i = 0, l = this.upgrades.length; i < l; i++) {
+      this.probe(this.upgrades[i]);
+    }
+  }
+};
+
+/**
+ * Handles a packet.
+ *
+ * @api private
+ */
+
+Socket.prototype.onPacket = function (packet) {
+  if ('opening' == this.readyState || 'open' == this.readyState) {
+    debug('socket receive: type "%s", data "%s"', packet.type, packet.data);
+
+    this.emit('packet', packet);
+
+    // Socket is live - any packet counts
+    this.emit('heartbeat');
+
+    switch (packet.type) {
+      case 'open':
+        this.onHandshake(parsejson(packet.data));
+        break;
+
+      case 'pong':
+        this.setPing();
+        break;
+
+      case 'error':
+        var err = new Error('server error');
+        err.code = packet.data;
+        this.emit('error', err);
+        break;
+
+      case 'message':
+        this.emit('data', packet.data);
+        this.emit('message', packet.data);
+        break;
+    }
+  } else {
+    debug('packet received with socket readyState "%s"', this.readyState);
+  }
+};
+
+/**
+ * Called upon handshake completion.
+ *
+ * @param {Object} handshake obj
+ * @api private
+ */
+
+Socket.prototype.onHandshake = function (data) {
+  this.emit('handshake', data);
+  this.id = data.sid;
+  this.transport.query.sid = data.sid;
+  this.upgrades = this.filterUpgrades(data.upgrades);
+  this.pingInterval = data.pingInterval;
+  this.pingTimeout = data.pingTimeout;
+  this.onOpen();
+  // In case open handler closes socket
+  if  ('closed' == this.readyState) return;
+  this.setPing();
+
+  // Prolong liveness of socket on heartbeat
+  this.removeListener('heartbeat', this.onHeartbeat);
+  this.on('heartbeat', this.onHeartbeat);
+};
+
+/**
+ * Resets ping timeout.
+ *
+ * @api private
+ */
+
+Socket.prototype.onHeartbeat = function (timeout) {
+  clearTimeout(this.pingTimeoutTimer);
+  var self = this;
+  self.pingTimeoutTimer = setTimeout(function () {
+    if ('closed' == self.readyState) return;
+    self.onClose('ping timeout');
+  }, timeout || (self.pingInterval + self.pingTimeout));
+};
+
+/**
+ * Pings server every `this.pingInterval` and expects response
+ * within `this.pingTimeout` or closes connection.
+ *
+ * @api private
+ */
+
+Socket.prototype.setPing = function () {
+  var self = this;
+  clearTimeout(self.pingIntervalTimer);
+  self.pingIntervalTimer = setTimeout(function () {
+    debug('writing ping packet - expecting pong within %sms', self.pingTimeout);
+    self.ping();
+    self.onHeartbeat(self.pingTimeout);
+  }, self.pingInterval);
+};
+
+/**
+* Sends a ping packet.
+*
+* @api public
+*/
+
+Socket.prototype.ping = function () {
+  this.sendPacket('ping');
+};
+
+/**
+ * Called on `drain` event
+ *
+ * @api private
+ */
+
+Socket.prototype.onDrain = function() {
+  for (var i = 0; i < this.prevBufferLen; i++) {
+    if (this.callbackBuffer[i]) {
+      this.callbackBuffer[i]();
+    }
+  }
+
+  this.writeBuffer.splice(0, this.prevBufferLen);
+  this.callbackBuffer.splice(0, this.prevBufferLen);
+
+  // setting prevBufferLen = 0 is very important
+  // for example, when upgrading, upgrade packet is sent over,
+  // and a nonzero prevBufferLen could cause problems on `drain`
+  this.prevBufferLen = 0;
+
+  if (this.writeBuffer.length == 0) {
+    this.emit('drain');
+  } else {
+    this.flush();
+  }
+};
+
+/**
+ * Flush write buffers.
+ *
+ * @api private
+ */
+
+Socket.prototype.flush = function () {
+  if ('closed' != this.readyState && this.transport.writable &&
+    !this.upgrading && this.writeBuffer.length) {
+    debug('flushing %d packets in socket', this.writeBuffer.length);
+    this.transport.send(this.writeBuffer);
+    // keep track of current length of writeBuffer
+    // splice writeBuffer and callbackBuffer on `drain`
+    this.prevBufferLen = this.writeBuffer.length;
+    this.emit('flush');
+  }
+};
+
+/**
+ * Sends a message.
+ *
+ * @param {String} message.
+ * @param {Function} callback function.
+ * @return {Socket} for chaining.
+ * @api public
+ */
+
+Socket.prototype.write =
+Socket.prototype.send = function (msg, fn) {
+  this.sendPacket('message', msg, fn);
+  return this;
+};
+
+/**
+ * Sends a packet.
+ *
+ * @param {String} packet type.
+ * @param {String} data.
+ * @param {Function} callback function.
+ * @api private
+ */
+
+Socket.prototype.sendPacket = function (type, data, fn) {
+  if ('closing' == this.readyState || 'closed' == this.readyState) {
+    return;
+  }
+
+  var packet = { type: type, data: data };
+  this.emit('packetCreate', packet);
+  this.writeBuffer.push(packet);
+  this.callbackBuffer.push(fn);
+  this.flush();
+};
+
+/**
+ * Closes the connection.
+ *
+ * @api private
+ */
+
+Socket.prototype.close = function () {
+  if ('opening' == this.readyState || 'open' == this.readyState) {
+    this.readyState = 'closing';
+
+    var self = this;
+
+    function close() {
+      self.onClose('forced close');
+      debug('socket closing - telling transport to close');
+      self.transport.close();
+    }
+
+    function cleanupAndClose() {
+      self.removeListener('upgrade', cleanupAndClose);
+      self.removeListener('upgradeError', cleanupAndClose);
+      close();
+    }
+
+    function waitForUpgrade() {
+      // wait for upgrade to finish since we can't send packets while pausing a transport
+      self.once('upgrade', cleanupAndClose);
+      self.once('upgradeError', cleanupAndClose);
+    }
+
+    if (this.writeBuffer.length) {
+      this.once('drain', function() {
+        if (this.upgrading) {
+          waitForUpgrade();
+        } else {
+          close();
+        }
+      });
+    } else if (this.upgrading) {
+      waitForUpgrade();
+    } else {
+      close();
+    }
+  }
+
+  return this;
+};
+
+/**
+ * Called upon transport error
+ *
+ * @api private
+ */
+
+Socket.prototype.onError = function (err) {
+  debug('socket error %j', err);
+  Socket.priorWebsocketSuccess = false;
+  this.emit('error', err);
+  this.onClose('transport error', err);
+};
+
+/**
+ * Called upon transport close.
+ *
+ * @api private
+ */
+
+Socket.prototype.onClose = function (reason, desc) {
+  if ('opening' == this.readyState || 'open' == this.readyState || 'closing' == this.readyState) {
+    debug('socket close with reason: "%s"', reason);
+    var self = this;
+
+    // clear timers
+    clearTimeout(this.pingIntervalTimer);
+    clearTimeout(this.pingTimeoutTimer);
+
+    // clean buffers in next tick, so developers can still
+    // grab the buffers on `close` event
+    setTimeout(function() {
+      self.writeBuffer = [];
+      self.callbackBuffer = [];
+      self.prevBufferLen = 0;
+    }, 0);
+
+    // stop event from firing again for transport
+    this.transport.removeAllListeners('close');
+
+    // ensure transport won't stay open
+    this.transport.close();
+
+    // ignore further transport communication
+    this.transport.removeAllListeners();
+
+    // set ready state
+    this.readyState = 'closed';
+
+    // clear session id
+    this.id = null;
+
+    // emit close event
+    this.emit('close', reason, desc);
+  }
+};
+
+/**
+ * Filters upgrades, returning only those matching client transports.
+ *
+ * @param {Array} server upgrades
+ * @api private
+ *
+ */
+
+Socket.prototype.filterUpgrades = function (upgrades) {
+  var filteredUpgrades = [];
+  for (var i = 0, j = upgrades.length; i<j; i++) {
+    if (~index(this.transports, upgrades[i])) filteredUpgrades.push(upgrades[i]);
+  }
+  return filteredUpgrades;
+};
+
+}).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"./transport":14,"./transports":15,"component-emitter":9,"debug":22,"engine.io-parser":25,"indexof":40,"parsejson":32,"parseqs":33,"parseuri":34}],14:[function(_dereq_,module,exports){
+/**
+ * Module dependencies.
+ */
+
+var parser = _dereq_('engine.io-parser');
+var Emitter = _dereq_('component-emitter');
+
+/**
+ * Module exports.
+ */
+
+module.exports = Transport;
+
+/**
+ * Transport abstract constructor.
+ *
+ * @param {Object} options.
+ * @api private
+ */
+
+function Transport (opts) {
+  this.path = opts.path;
+  this.hostname = opts.hostname;
+  this.port = opts.port;
+  this.secure = opts.secure;
+  this.query = opts.query;
+  this.timestampParam = opts.timestampParam;
+  this.timestampRequests = opts.timestampRequests;
+  this.readyState = '';
+  this.agent = opts.agent || false;
+  this.socket = opts.socket;
+  this.enablesXDR = opts.enablesXDR;
+
+  // SSL options for Node.js client
+  this.pfx = opts.pfx;
+  this.key = opts.key;
+  this.passphrase = opts.passphrase;
+  this.cert = opts.cert;
+  this.ca = opts.ca;
+  this.ciphers = opts.ciphers;
+  this.rejectUnauthorized = opts.rejectUnauthorized;
+}
+
+/**
+ * Mix in `Emitter`.
+ */
+
+Emitter(Transport.prototype);
+
+/**
+ * A counter used to prevent collisions in the timestamps used
+ * for cache busting.
+ */
+
+Transport.timestamps = 0;
+
+/**
+ * Emits an error.
+ *
+ * @param {String} str
+ * @return {Transport} for chaining
+ * @api public
+ */
+
+Transport.prototype.onError = function (msg, desc) {
+  var err = new Error(msg);
+  err.type = 'TransportError';
+  err.description = desc;
+  this.emit('error', err);
+  return this;
+};
+
+/**
+ * Opens the transport.
+ *
+ * @api public
+ */
+
+Transport.prototype.open = function () {
+  if ('closed' == this.readyState || '' == this.readyState) {
+    this.readyState = 'opening';
+    this.doOpen();
+  }
+
+  return this;
+};
+
+/**
+ * Closes the transport.
+ *
+ * @api private
+ */
+
+Transport.prototype.close = function () {
+  if ('opening' == this.readyState || 'open' == this.readyState) {
+    this.doClose();
+    this.onClose();
+  }
+
+  return this;
+};
+
+/**
+ * Sends multiple packets.
+ *
+ * @param {Array} packets
+ * @api private
+ */
+
+Transport.prototype.send = function(packets){
+  if ('open' == this.readyState) {
+    this.write(packets);
+  } else {
+    throw new Error('Transport not open');
+  }
+};
+
+/**
+ * Called upon open
+ *
+ * @api private
+ */
+
+Transport.prototype.onOpen = function () {
+  this.readyState = 'open';
+  this.writable = true;
+  this.emit('open');
+};
+
+/**
+ * Called with data.
+ *
+ * @param {String} data
+ * @api private
+ */
+
+Transport.prototype.onData = function(data){
+  var packet = parser.decodePacket(data, this.socket.binaryType);
+  this.onPacket(packet);
+};
+
+/**
+ * Called with a decoded packet.
+ */
+
+Transport.prototype.onPacket = function (packet) {
+  this.emit('packet', packet);
+};
+
+/**
+ * Called upon close.
+ *
+ * @api private
+ */
+
+Transport.prototype.onClose = function () {
+  this.readyState = 'closed';
+  this.emit('close');
+};
+
+},{"component-emitter":9,"engine.io-parser":25}],15:[function(_dereq_,module,exports){
+(function (global){
+/**
+ * Module dependencies
+ */
+
+var XMLHttpRequest = _dereq_('xmlhttprequest');
+var XHR = _dereq_('./polling-xhr');
+var JSONP = _dereq_('./polling-jsonp');
+var websocket = _dereq_('./websocket');
+
+/**
+ * Export transports.
+ */
+
+exports.polling = polling;
+exports.websocket = websocket;
+
+/**
+ * Polling transport polymorphic constructor.
+ * Decides on xhr vs jsonp based on feature detection.
+ *
+ * @api private
+ */
+
+function polling(opts){
+  var xhr;
+  var xd = false;
+  var xs = false;
+  var jsonp = false !== opts.jsonp;
+
+  if (global.location) {
+    var isSSL = 'https:' == location.protocol;
+    var port = location.port;
+
+    // some user agents have empty `location.port`
+    if (!port) {
+      port = isSSL ? 443 : 80;
+    }
+
+    xd = opts.hostname != location.hostname || port != opts.port;
+    xs = opts.secure != isSSL;
+  }
+
+  opts.xdomain = xd;
+  opts.xscheme = xs;
+  xhr = new XMLHttpRequest(opts);
+
+  if ('open' in xhr && !opts.forceJSONP) {
+    return new XHR(opts);
+  } else {
+    if (!jsonp) throw new Error('JSONP disabled');
+    return new JSONP(opts);
+  }
+}
+
+}).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"./polling-jsonp":16,"./polling-xhr":17,"./websocket":19,"xmlhttprequest":20}],16:[function(_dereq_,module,exports){
+(function (global){
+
+/**
+ * Module requirements.
+ */
+
+var Polling = _dereq_('./polling');
+var inherit = _dereq_('component-inherit');
+
+/**
+ * Module exports.
+ */
+
+module.exports = JSONPPolling;
+
+/**
+ * Cached regular expressions.
+ */
+
+var rNewline = /\n/g;
+var rEscapedNewline = /\\n/g;
+
+/**
+ * Global JSONP callbacks.
+ */
+
+var callbacks;
+
+/**
+ * Callbacks count.
+ */
+
+var index = 0;
+
+/**
+ * Noop.
+ */
+
+function empty () { }
+
+/**
+ * JSONP Polling constructor.
+ *
+ * @param {Object} opts.
+ * @api public
+ */
+
+function JSONPPolling (opts) {
+  Polling.call(this, opts);
+
+  this.query = this.query || {};
+
+  // define global callbacks array if not present
+  // we do this here (lazily) to avoid unneeded global pollution
+  if (!callbacks) {
+    // we need to consider multiple engines in the same page
+    if (!global.___eio) global.___eio = [];
+    callbacks = global.___eio;
+  }
+
+  // callback identifier
+  this.index = callbacks.length;
+
+  // add callback to jsonp global
+  var self = this;
+  callbacks.push(function (msg) {
+    self.onData(msg);
+  });
+
+  // append to query string
+  this.query.j = this.index;
+
+  // prevent spurious errors from being emitted when the window is unloaded
+  if (global.document && global.addEventListener) {
+    global.addEventListener('beforeunload', function () {
+      if (self.script) self.script.onerror = empty;
+    }, false);
+  }
+}
+
+/**
+ * Inherits from Polling.
+ */
+
+inherit(JSONPPolling, Polling);
+
+/*
+ * JSONP only supports binary as base64 encoded strings
+ */
+
+JSONPPolling.prototype.supportsBinary = false;
+
+/**
+ * Closes the socket.
+ *
+ * @api private
+ */
+
+JSONPPolling.prototype.doClose = function () {
+  if (this.script) {
+    this.script.parentNode.removeChild(this.script);
+    this.script = null;
+  }
+
+  if (this.form) {
+    this.form.parentNode.removeChild(this.form);
+    this.form = null;
+    this.iframe = null;
+  }
+
+  Polling.prototype.doClose.call(this);
+};
+
+/**
+ * Starts a poll cycle.
+ *
+ * @api private
+ */
+
+JSONPPolling.prototype.doPoll = function () {
+  var self = this;
+  var script = document.createElement('script');
+
+  if (this.script) {
+    this.script.parentNode.removeChild(this.script);
+    this.script = null;
+  }
+
+  script.async = true;
+  script.src = this.uri();
+  script.onerror = function(e){
+    self.onError('jsonp poll error',e);
+  };
+
+  var insertAt = document.getElementsByTagName('script')[0];
+  insertAt.parentNode.insertBefore(script, insertAt);
+  this.script = script;
+
+  var isUAgecko = 'undefined' != typeof navigator && /gecko/i.test(navigator.userAgent);
+  
+  if (isUAgecko) {
+    setTimeout(function () {
+      var iframe = document.createElement('iframe');
+      document.body.appendChild(iframe);
+      document.body.removeChild(iframe);
+    }, 100);
+  }
+};
+
+/**
+ * Writes with a hidden iframe.
+ *
+ * @param {String} data to send
+ * @param {Function} called upon flush.
+ * @api private
+ */
+
+JSONPPolling.prototype.doWrite = function (data, fn) {
+  var self = this;
+
+  if (!this.form) {
+    var form = document.createElement('form');
+    var area = document.createElement('textarea');
+    var id = this.iframeId = 'eio_iframe_' + this.index;
+    var iframe;
+
+    form.className = 'socketio';
+    form.style.position = 'absolute';
+    form.style.top = '-1000px';
+    form.style.left = '-1000px';
+    form.target = id;
+    form.method = 'POST';
+    form.setAttribute('accept-charset', 'utf-8');
+    area.name = 'd';
+    form.appendChild(area);
+    document.body.appendChild(form);
+
+    this.form = form;
+    this.area = area;
+  }
+
+  this.form.action = this.uri();
+
+  function complete () {
+    initIframe();
+    fn();
+  }
+
+  function initIframe () {
+    if (self.iframe) {
+      try {
+        self.form.removeChild(self.iframe);
+      } catch (e) {
+        self.onError('jsonp polling iframe removal error', e);
+      }
+    }
+
+    try {
+      // ie6 dynamic iframes with target="" support (thanks Chris Lambacher)
+      var html = '<iframe src="javascript:0" name="'+ self.iframeId +'">';
+      iframe = document.createElement(html);
+    } catch (e) {
+      iframe = document.createElement('iframe');
+      iframe.name = self.iframeId;
+      iframe.src = 'javascript:0';
+    }
+
+    iframe.id = self.iframeId;
+
+    self.form.appendChild(iframe);
+    self.iframe = iframe;
+  }
+
+  initIframe();
+
+  // escape \n to prevent it from being converted into \r\n by some UAs
+  // double escaping is required for escaped new lines because unescaping of new lines can be done safely on server-side
+  data = data.replace(rEscapedNewline, '\\\n');
+  this.area.value = data.replace(rNewline, '\\n');
+
+  try {
+    this.form.submit();
+  } catch(e) {}
+
+  if (this.iframe.attachEvent) {
+    this.iframe.onreadystatechange = function(){
+      if (self.iframe.readyState == 'complete') {
+        complete();
+      }
+    };
+  } else {
+    this.iframe.onload = complete;
+  }
+};
+
+}).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"./polling":18,"component-inherit":21}],17:[function(_dereq_,module,exports){
+(function (global){
+/**
+ * Module requirements.
+ */
+
+var XMLHttpRequest = _dereq_('xmlhttprequest');
+var Polling = _dereq_('./polling');
+var Emitter = _dereq_('component-emitter');
+var inherit = _dereq_('component-inherit');
+var debug = _dereq_('debug')('engine.io-client:polling-xhr');
+
+/**
+ * Module exports.
+ */
+
+module.exports = XHR;
+module.exports.Request = Request;
+
+/**
+ * Empty function
+ */
+
+function empty(){}
+
+/**
+ * XHR Polling constructor.
+ *
+ * @param {Object} opts
+ * @api public
+ */
+
+function XHR(opts){
+  Polling.call(this, opts);
+
+  if (global.location) {
+    var isSSL = 'https:' == location.protocol;
+    var port = location.port;
+
+    // some user agents have empty `location.port`
+    if (!port) {
+      port = isSSL ? 443 : 80;
+    }
+
+    this.xd = opts.hostname != global.location.hostname ||
+      port != opts.port;
+    this.xs = opts.secure != isSSL;
+  }
+}
+
+/**
+ * Inherits from Polling.
+ */
+
+inherit(XHR, Polling);
+
+/**
+ * XHR supports binary
+ */
+
+XHR.prototype.supportsBinary = true;
+
+/**
+ * Creates a request.
+ *
+ * @param {String} method
+ * @api private
+ */
+
+XHR.prototype.request = function(opts){
+  opts = opts || {};
+  opts.uri = this.uri();
+  opts.xd = this.xd;
+  opts.xs = this.xs;
+  opts.agent = this.agent || false;
+  opts.supportsBinary = this.supportsBinary;
+  opts.enablesXDR = this.enablesXDR;
+
+  // SSL options for Node.js client
+  opts.pfx = this.pfx;
+  opts.key = this.key;
+  opts.passphrase = this.passphrase;
+  opts.cert = this.cert;
+  opts.ca = this.ca;
+  opts.ciphers = this.ciphers;
+  opts.rejectUnauthorized = this.rejectUnauthorized;
+
+  return new Request(opts);
+};
+
+/**
+ * Sends data.
+ *
+ * @param {String} data to send.
+ * @param {Function} called upon flush.
+ * @api private
+ */
+
+XHR.prototype.doWrite = function(data, fn){
+  var isBinary = typeof data !== 'string' && data !== undefined;
+  var req = this.request({ method: 'POST', data: data, isBinary: isBinary });
+  var self = this;
+  req.on('success', fn);
+  req.on('error', function(err){
+    self.onError('xhr post error', err);
+  });
+  this.sendXhr = req;
+};
+
+/**
+ * Starts a poll cycle.
+ *
+ * @api private
+ */
+
+XHR.prototype.doPoll = function(){
+  debug('xhr poll');
+  var req = this.request();
+  var self = this;
+  req.on('data', function(data){
+    self.onData(data);
+  });
+  req.on('error', function(err){
+    self.onError('xhr poll error', err);
+  });
+  this.pollXhr = req;
+};
+
+/**
+ * Request constructor
+ *
+ * @param {Object} options
+ * @api public
+ */
+
+function Request(opts){
+  this.method = opts.method || 'GET';
+  this.uri = opts.uri;
+  this.xd = !!opts.xd;
+  this.xs = !!opts.xs;
+  this.async = false !== opts.async;
+  this.data = undefined != opts.data ? opts.data : null;
+  this.agent = opts.agent;
+  this.isBinary = opts.isBinary;
+  this.supportsBinary = opts.supportsBinary;
+  this.enablesXDR = opts.enablesXDR;
+
+  // SSL options for Node.js client
+  this.pfx = opts.pfx;
+  this.key = opts.key;
+  this.passphrase = opts.passphrase;
+  this.cert = opts.cert;
+  this.ca = opts.ca;
+  this.ciphers = opts.ciphers;
+  this.rejectUnauthorized = opts.rejectUnauthorized;
+
+  this.create();
+}
+
+/**
+ * Mix in `Emitter`.
+ */
+
+Emitter(Request.prototype);
+
+/**
+ * Creates the XHR object and sends the request.
+ *
+ * @api private
+ */
+
+Request.prototype.create = function(){
+  var opts = { agent: this.agent, xdomain: this.xd, xscheme: this.xs, enablesXDR: this.enablesXDR };
+
+  // SSL options for Node.js client
+  opts.pfx = this.pfx;
+  opts.key = this.key;
+  opts.passphrase = this.passphrase;
+  opts.cert = this.cert;
+  opts.ca = this.ca;
+  opts.ciphers = this.ciphers;
+  opts.rejectUnauthorized = this.rejectUnauthorized;
+
+  var xhr = this.xhr = new XMLHttpRequest(opts);
+  var self = this;
+
+  try {
+    debug('xhr open %s: %s', this.method, this.uri);
+    xhr.open(this.method, this.uri, this.async);
+    if (this.supportsBinary) {
+      // This has to be done after open because Firefox is stupid
+      // http://stackoverflow.com/questions/13216903/get-binary-data-with-xmlhttprequest-in-a-firefox-extension
+      xhr.responseType = 'arraybuffer';
+    }
+
+    if ('POST' == this.method) {
+      try {
+        if (this.isBinary) {
+          xhr.setRequestHeader('Content-type', 'application/octet-stream');
+        } else {
+          xhr.setRequestHeader('Content-type', 'text/plain;charset=UTF-8');
+        }
+      } catch (e) {}
+    }
+
+    // ie6 check
+    if ('withCredentials' in xhr) {
+      xhr.withCredentials = true;
+    }
+
+    if (this.hasXDR()) {
+      xhr.onload = function(){
+        self.onLoad();
+      };
+      xhr.onerror = function(){
+        self.onError(xhr.responseText);
+      };
+    } else {
+      xhr.onreadystatechange = function(){
+        if (4 != xhr.readyState) return;
+        if (200 == xhr.status || 1223 == xhr.status) {
+          self.onLoad();
+        } else {
+          // make sure the `error` event handler that's user-set
+          // does not throw in the same tick and gets caught here
+          setTimeout(function(){
+            self.onError(xhr.status);
+          }, 0);
+        }
+      };
+    }
+
+    debug('xhr data %s', this.data);
+    xhr.send(this.data);
+  } catch (e) {
+    // Need to defer since .create() is called directly fhrom the constructor
+    // and thus the 'error' event can only be only bound *after* this exception
+    // occurs.  Therefore, also, we cannot throw here at all.
+    setTimeout(function() {
+      self.onError(e);
+    }, 0);
+    return;
+  }
+
+  if (global.document) {
+    this.index = Request.requestsCount++;
+    Request.requests[this.index] = this;
+  }
+};
+
+/**
+ * Called upon successful response.
+ *
+ * @api private
+ */
+
+Request.prototype.onSuccess = function(){
+  this.emit('success');
+  this.cleanup();
+};
+
+/**
+ * Called if we have data.
+ *
+ * @api private
+ */
+
+Request.prototype.onData = function(data){
+  this.emit('data', data);
+  this.onSuccess();
+};
+
+/**
+ * Called upon error.
+ *
+ * @api private
+ */
+
+Request.prototype.onError = function(err){
+  this.emit('error', err);
+  this.cleanup(true);
+};
+
+/**
+ * Cleans up house.
+ *
+ * @api private
+ */
+
+Request.prototype.cleanup = function(fromError){
+  if ('undefined' == typeof this.xhr || null === this.xhr) {
+    return;
+  }
+  // xmlhttprequest
+  if (this.hasXDR()) {
+    this.xhr.onload = this.xhr.onerror = empty;
+  } else {
+    this.xhr.onreadystatechange = empty;
+  }
+
+  if (fromError) {
+    try {
+      this.xhr.abort();
+    } catch(e) {}
+  }
+
+  if (global.document) {
+    delete Request.requests[this.index];
+  }
+
+  this.xhr = null;
+};
+
+/**
+ * Called upon load.
+ *
+ * @api private
+ */
+
+Request.prototype.onLoad = function(){
+  var data;
+  try {
+    var contentType;
+    try {
+      contentType = this.xhr.getResponseHeader('Content-Type').split(';')[0];
+    } catch (e) {}
+    if (contentType === 'application/octet-stream') {
+      data = this.xhr.response;
+    } else {
+      if (!this.supportsBinary) {
+        data = this.xhr.responseText;
+      } else {
+        data = 'ok';
+      }
+    }
+  } catch (e) {
+    this.onError(e);
+  }
+  if (null != data) {
+    this.onData(data);
+  }
+};
+
+/**
+ * Check if it has XDomainRequest.
+ *
+ * @api private
+ */
+
+Request.prototype.hasXDR = function(){
+  return 'undefined' !== typeof global.XDomainRequest && !this.xs && this.enablesXDR;
+};
+
+/**
+ * Aborts the request.
+ *
+ * @api public
+ */
+
+Request.prototype.abort = function(){
+  this.cleanup();
+};
+
+/**
+ * Aborts pending requests when unloading the window. This is needed to prevent
+ * memory leaks (e.g. when using IE) and to ensure that no spurious error is
+ * emitted.
+ */
+
+if (global.document) {
+  Request.requestsCount = 0;
+  Request.requests = {};
+  if (global.attachEvent) {
+    global.attachEvent('onunload', unloadHandler);
+  } else if (global.addEventListener) {
+    global.addEventListener('beforeunload', unloadHandler, false);
+  }
+}
+
+function unloadHandler() {
+  for (var i in Request.requests) {
+    if (Request.requests.hasOwnProperty(i)) {
+      Request.requests[i].abort();
+    }
+  }
+}
+
+}).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"./polling":18,"component-emitter":9,"component-inherit":21,"debug":22,"xmlhttprequest":20}],18:[function(_dereq_,module,exports){
+/**
+ * Module dependencies.
+ */
+
+var Transport = _dereq_('../transport');
+var parseqs = _dereq_('parseqs');
+var parser = _dereq_('engine.io-parser');
+var inherit = _dereq_('component-inherit');
+var debug = _dereq_('debug')('engine.io-client:polling');
+
+/**
+ * Module exports.
+ */
+
+module.exports = Polling;
+
+/**
+ * Is XHR2 supported?
+ */
+
+var hasXHR2 = (function() {
+  var XMLHttpRequest = _dereq_('xmlhttprequest');
+  var xhr = new XMLHttpRequest({ xdomain: false });
+  return null != xhr.responseType;
+})();
+
+/**
+ * Polling interface.
+ *
+ * @param {Object} opts
+ * @api private
+ */
+
+function Polling(opts){
+  var forceBase64 = (opts && opts.forceBase64);
+  if (!hasXHR2 || forceBase64) {
+    this.supportsBinary = false;
+  }
+  Transport.call(this, opts);
+}
+
+/**
+ * Inherits from Transport.
+ */
+
+inherit(Polling, Transport);
+
+/**
+ * Transport name.
+ */
+
+Polling.prototype.name = 'polling';
+
+/**
+ * Opens the socket (triggers polling). We write a PING message to determine
+ * when the transport is open.
+ *
+ * @api private
+ */
+
+Polling.prototype.doOpen = function(){
+  this.poll();
+};
+
+/**
+ * Pauses polling.
+ *
+ * @param {Function} callback upon buffers are flushed and transport is paused
+ * @api private
+ */
+
+Polling.prototype.pause = function(onPause){
+  var pending = 0;
+  var self = this;
+
+  this.readyState = 'pausing';
+
+  function pause(){
+    debug('paused');
+    self.readyState = 'paused';
+    onPause();
+  }
+
+  if (this.polling || !this.writable) {
+    var total = 0;
+
+    if (this.polling) {
+      debug('we are currently polling - waiting to pause');
+      total++;
+      this.once('pollComplete', function(){
+        debug('pre-pause polling complete');
+        --total || pause();
+      });
+    }
+
+    if (!this.writable) {
+      debug('we are currently writing - waiting to pause');
+      total++;
+      this.once('drain', function(){
+        debug('pre-pause writing complete');
+        --total || pause();
+      });
+    }
+  } else {
+    pause();
+  }
+};
+
+/**
+ * Starts polling cycle.
+ *
+ * @api public
+ */
+
+Polling.prototype.poll = function(){
+  debug('polling');
+  this.polling = true;
+  this.doPoll();
+  this.emit('poll');
+};
+
+/**
+ * Overloads onData to detect payloads.
+ *
+ * @api private
+ */
+
+Polling.prototype.onData = function(data){
+  var self = this;
+  debug('polling got data %s', data);
+  var callback = function(packet, index, total) {
+    // if its the first message we consider the transport open
+    if ('opening' == self.readyState) {
+      self.onOpen();
+    }
+
+    // if its a close packet, we close the ongoing requests
+    if ('close' == packet.type) {
+      self.onClose();
+      return false;
+    }
+
+    // otherwise bypass onData and handle the message
+    self.onPacket(packet);
+  };
+
+  // decode payload
+  parser.decodePayload(data, this.socket.binaryType, callback);
+
+  // if an event did not trigger closing
+  if ('closed' != this.readyState) {
+    // if we got data we're not polling
+    this.polling = false;
+    this.emit('pollComplete');
+
+    if ('open' == this.readyState) {
+      this.poll();
+    } else {
+      debug('ignoring poll - transport state "%s"', this.readyState);
+    }
+  }
+};
+
+/**
+ * For polling, send a close packet.
+ *
+ * @api private
+ */
+
+Polling.prototype.doClose = function(){
+  var self = this;
+
+  function close(){
+    debug('writing close packet');
+    self.write([{ type: 'close' }]);
+  }
+
+  if ('open' == this.readyState) {
+    debug('transport open - closing');
+    close();
+  } else {
+    // in case we're trying to close while
+    // handshaking is in progress (GH-164)
+    debug('transport not open - deferring close');
+    this.once('open', close);
+  }
+};
+
+/**
+ * Writes a packets payload.
+ *
+ * @param {Array} data packets
+ * @param {Function} drain callback
+ * @api private
+ */
+
+Polling.prototype.write = function(packets){
+  var self = this;
+  this.writable = false;
+  var callbackfn = function() {
+    self.writable = true;
+    self.emit('drain');
+  };
+
+  var self = this;
+  parser.encodePayload(packets, this.supportsBinary, function(data) {
+    self.doWrite(data, callbackfn);
+  });
+};
+
+/**
+ * Generates uri for connection.
+ *
+ * @api private
+ */
+
+Polling.prototype.uri = function(){
+  var query = this.query || {};
+  var schema = this.secure ? 'https' : 'http';
+  var port = '';
+
+  // cache busting is forced
+  if (false !== this.timestampRequests) {
+    query[this.timestampParam] = +new Date + '-' + Transport.timestamps++;
+  }
+
+  if (!this.supportsBinary && !query.sid) {
+    query.b64 = 1;
+  }
+
+  query = parseqs.encode(query);
+
+  // avoid port if default for schema
+  if (this.port && (('https' == schema && this.port != 443) ||
+     ('http' == schema && this.port != 80))) {
+    port = ':' + this.port;
+  }
+
+  // prepend ? to query
+  if (query.length) {
+    query = '?' + query;
+  }
+
+  return schema + '://' + this.hostname + port + this.path + query;
+};
+
+},{"../transport":14,"component-inherit":21,"debug":22,"engine.io-parser":25,"parseqs":33,"xmlhttprequest":20}],19:[function(_dereq_,module,exports){
+/**
+ * Module dependencies.
+ */
+
+var Transport = _dereq_('../transport');
+var parser = _dereq_('engine.io-parser');
+var parseqs = _dereq_('parseqs');
+var inherit = _dereq_('component-inherit');
+var debug = _dereq_('debug')('engine.io-client:websocket');
+
+/**
+ * `ws` exposes a WebSocket-compatible interface in
+ * Node, or the `WebSocket` or `MozWebSocket` globals
+ * in the browser.
+ */
+
+var WebSocket = _dereq_('ws');
+
+/**
+ * Module exports.
+ */
+
+module.exports = WS;
+
+/**
+ * WebSocket transport constructor.
+ *
+ * @api {Object} connection options
+ * @api public
+ */
+
+function WS(opts){
+  var forceBase64 = (opts && opts.forceBase64);
+  if (forceBase64) {
+    this.supportsBinary = false;
+  }
+  Transport.call(this, opts);
+}
+
+/**
+ * Inherits from Transport.
+ */
+
+inherit(WS, Transport);
+
+/**
+ * Transport name.
+ *
+ * @api public
+ */
+
+WS.prototype.name = 'websocket';
+
+/*
+ * WebSockets support binary
+ */
+
+WS.prototype.supportsBinary = true;
+
+/**
+ * Opens socket.
+ *
+ * @api private
+ */
+
+WS.prototype.doOpen = function(){
+  if (!this.check()) {
+    // let probe timeout
+    return;
+  }
+
+  var self = this;
+  var uri = this.uri();
+  var protocols = void(0);
+  var opts = { agent: this.agent };
+
+  // SSL options for Node.js client
+  opts.pfx = this.pfx;
+  opts.key = this.key;
+  opts.passphrase = this.passphrase;
+  opts.cert = this.cert;
+  opts.ca = this.ca;
+  opts.ciphers = this.ciphers;
+  opts.rejectUnauthorized = this.rejectUnauthorized;
+
+  this.ws = new WebSocket(uri, protocols, opts);
+
+  if (this.ws.binaryType === undefined) {
+    this.supportsBinary = false;
+  }
+
+  this.ws.binaryType = 'arraybuffer';
+  this.addEventListeners();
+};
+
+/**
+ * Adds event listeners to the socket
+ *
+ * @api private
+ */
+
+WS.prototype.addEventListeners = function(){
+  var self = this;
+
+  this.ws.onopen = function(){
+    self.onOpen();
+  };
+  this.ws.onclose = function(){
+    self.onClose();
+  };
+  this.ws.onmessage = function(ev){
+    self.onData(ev.data);
+  };
+  this.ws.onerror = function(e){
+    self.onError('websocket error', e);
+  };
+};
+
+/**
+ * Override `onData` to use a timer on iOS.
+ * See: https://gist.github.com/mloughran/2052006
+ *
+ * @api private
+ */
+
+if ('undefined' != typeof navigator
+  && /iPad|iPhone|iPod/i.test(navigator.userAgent)) {
+  WS.prototype.onData = function(data){
+    var self = this;
+    setTimeout(function(){
+      Transport.prototype.onData.call(self, data);
+    }, 0);
+  };
+}
+
+/**
+ * Writes data to socket.
+ *
+ * @param {Array} array of packets.
+ * @api private
+ */
+
+WS.prototype.write = function(packets){
+  var self = this;
+  this.writable = false;
+  // encodePacket efficient as it uses WS framing
+  // no need for encodePayload
+  for (var i = 0, l = packets.length; i < l; i++) {
+    parser.encodePacket(packets[i], this.supportsBinary, function(data) {
+      //Sometimes the websocket has already been closed but the browser didn't
+      //have a chance of informing us about it yet, in that case send will
+      //throw an error
+      try {
+        self.ws.send(data);
+      } catch (e){
+        debug('websocket closed before onclose event');
+      }
+    });
+  }
+
+  function ondrain() {
+    self.writable = true;
+    self.emit('drain');
+  }
+  // fake drain
+  // defer to next tick to allow Socket to clear writeBuffer
+  setTimeout(ondrain, 0);
+};
+
+/**
+ * Called upon close
+ *
+ * @api private
+ */
+
+WS.prototype.onClose = function(){
+  Transport.prototype.onClose.call(this);
+};
+
+/**
+ * Closes socket.
+ *
+ * @api private
+ */
+
+WS.prototype.doClose = function(){
+  if (typeof this.ws !== 'undefined') {
+    this.ws.close();
+  }
+};
+
+/**
+ * Generates uri for connection.
+ *
+ * @api private
+ */
+
+WS.prototype.uri = function(){
+  var query = this.query || {};
+  var schema = this.secure ? 'wss' : 'ws';
+  var port = '';
+
+  // avoid port if default for schema
+  if (this.port && (('wss' == schema && this.port != 443)
+    || ('ws' == schema && this.port != 80))) {
+    port = ':' + this.port;
+  }
+
+  // append timestamp to URI
+  if (this.timestampRequests) {
+    query[this.timestampParam] = +new Date;
+  }
+
+  // communicate binary support capabilities
+  if (!this.supportsBinary) {
+    query.b64 = 1;
+  }
+
+  query = parseqs.encode(query);
+
+  // prepend ? to query
+  if (query.length) {
+    query = '?' + query;
+  }
+
+  return schema + '://' + this.hostname + port + this.path + query;
+};
+
+/**
+ * Feature detection for WebSocket.
+ *
+ * @return {Boolean} whether this transport is available.
+ * @api public
+ */
+
+WS.prototype.check = function(){
+  return !!WebSocket && !('__initialize' in WebSocket && this.name === WS.prototype.name);
+};
+
+},{"../transport":14,"component-inherit":21,"debug":22,"engine.io-parser":25,"parseqs":33,"ws":35}],20:[function(_dereq_,module,exports){
+// browser shim for xmlhttprequest module
+var hasCORS = _dereq_('has-cors');
+
+module.exports = function(opts) {
+  var xdomain = opts.xdomain;
+
+  // scheme must be same when usign XDomainRequest
+  // http://blogs.msdn.com/b/ieinternals/archive/2010/05/13/xdomainrequest-restrictions-limitations-and-workarounds.aspx
+  var xscheme = opts.xscheme;
+
+  // XDomainRequest has a flow of not sending cookie, therefore it should be disabled as a default.
+  // https://github.com/Automattic/engine.io-client/pull/217
+  var enablesXDR = opts.enablesXDR;
+
+  // XMLHttpRequest can be disabled on IE
+  try {
+    if ('undefined' != typeof XMLHttpRequest && (!xdomain || hasCORS)) {
+      return new XMLHttpRequest();
+    }
+  } catch (e) { }
+
+  // Use XDomainRequest for IE8 if enablesXDR is true
+  // because loading bar keeps flashing when using jsonp-polling
+  // https://github.com/yujiosaka/socke.io-ie8-loading-example
+  try {
+    if ('undefined' != typeof XDomainRequest && !xscheme && enablesXDR) {
+      return new XDomainRequest();
+    }
+  } catch (e) { }
+
+  if (!xdomain) {
+    try {
+      return new ActiveXObject('Microsoft.XMLHTTP');
+    } catch(e) { }
+  }
+}
+
+},{"has-cors":38}],21:[function(_dereq_,module,exports){
+
+module.exports = function(a, b){
+  var fn = function(){};
+  fn.prototype = b.prototype;
+  a.prototype = new fn;
+  a.prototype.constructor = a;
+};
+},{}],22:[function(_dereq_,module,exports){
+
+/**
+ * This is the web browser implementation of `debug()`.
+ *
+ * Expose `debug()` as the module.
+ */
+
+exports = module.exports = _dereq_('./debug');
+exports.log = log;
+exports.formatArgs = formatArgs;
+exports.save = save;
+exports.load = load;
+exports.useColors = useColors;
+
+/**
+ * Colors.
+ */
+
+exports.colors = [
+  'lightseagreen',
+  'forestgreen',
+  'goldenrod',
+  'dodgerblue',
+  'darkorchid',
+  'crimson'
+];
+
+/**
+ * Currently only WebKit-based Web Inspectors, Firefox >= v31,
+ * and the Firebug extension (any Firefox version) are known
+ * to support "%c" CSS customizations.
+ *
+ * TODO: add a `localStorage` variable to explicitly enable/disable colors
+ */
+
+function useColors() {
+  // is webkit? http://stackoverflow.com/a/16459606/376773
+  return ('WebkitAppearance' in document.documentElement.style) ||
+    // is firebug? http://stackoverflow.com/a/398120/376773
+    (window.console && (console.firebug || (console.exception && console.table))) ||
+    // is firefox >= v31?
+    // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
+    (navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31);
+}
+
+/**
+ * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
+ */
+
+exports.formatters.j = function(v) {
+  return JSON.stringify(v);
+};
+
+
+/**
+ * Colorize log arguments if enabled.
+ *
+ * @api public
+ */
+
+function formatArgs() {
+  var args = arguments;
+  var useColors = this.useColors;
+
+  args[0] = (useColors ? '%c' : '')
+    + this.namespace
+    + (useColors ? ' %c' : ' ')
+    + args[0]
+    + (useColors ? '%c ' : ' ')
+    + '+' + exports.humanize(this.diff);
+
+  if (!useColors) return args;
+
+  var c = 'color: ' + this.color;
+  args = [args[0], c, 'color: inherit'].concat(Array.prototype.slice.call(args, 1));
+
+  // the final "%c" is somewhat tricky, because there could be other
+  // arguments passed either before or after the %c, so we need to
+  // figure out the correct index to insert the CSS into
+  var index = 0;
+  var lastC = 0;
+  args[0].replace(/%[a-z%]/g, function(match) {
+    if ('%%' === match) return;
+    index++;
+    if ('%c' === match) {
+      // we only are interested in the *last* %c
+      // (the user may have provided their own)
+      lastC = index;
+    }
+  });
+
+  args.splice(lastC, 0, c);
+  return args;
+}
+
+/**
+ * Invokes `console.log()` when available.
+ * No-op when `console.log` is not a "function".
+ *
+ * @api public
+ */
+
+function log() {
+  // This hackery is required for IE8,
+  // where the `console.log` function doesn't have 'apply'
+  return 'object' == typeof console
+    && 'function' == typeof console.log
+    && Function.prototype.apply.call(console.log, console, arguments);
+}
+
+/**
+ * Save `namespaces`.
+ *
+ * @param {String} namespaces
+ * @api private
+ */
+
+function save(namespaces) {
+  try {
+    if (null == namespaces) {
+      localStorage.removeItem('debug');
+    } else {
+      localStorage.debug = namespaces;
+    }
+  } catch(e) {}
+}
+
+/**
+ * Load `namespaces`.
+ *
+ * @return {String} returns the previously persisted debug modes
+ * @api private
+ */
+
+function load() {
+  var r;
+  try {
+    r = localStorage.debug;
+  } catch(e) {}
+  return r;
+}
+
+/**
+ * Enable namespaces listed in `localStorage.debug` initially.
+ */
+
+exports.enable(load());
+
+},{"./debug":23}],23:[function(_dereq_,module,exports){
+
+/**
+ * This is the common logic for both the Node.js and web browser
+ * implementations of `debug()`.
+ *
+ * Expose `debug()` as the module.
+ */
+
+exports = module.exports = debug;
+exports.coerce = coerce;
+exports.disable = disable;
+exports.enable = enable;
+exports.enabled = enabled;
+exports.humanize = _dereq_('ms');
+
+/**
+ * The currently active debug mode names, and names to skip.
+ */
+
+exports.names = [];
+exports.skips = [];
+
+/**
+ * Map of special "%n" handling functions, for the debug "format" argument.
+ *
+ * Valid key names are a single, lowercased letter, i.e. "n".
+ */
+
+exports.formatters = {};
+
+/**
+ * Previously assigned color.
+ */
+
+var prevColor = 0;
+
+/**
+ * Previous log timestamp.
+ */
+
+var prevTime;
+
+/**
+ * Select a color.
+ *
+ * @return {Number}
+ * @api private
+ */
+
+function selectColor() {
+  return exports.colors[prevColor++ % exports.colors.length];
+}
+
+/**
+ * Create a debugger with the given `namespace`.
+ *
+ * @param {String} namespace
+ * @return {Function}
+ * @api public
+ */
+
+function debug(namespace) {
+
+  // define the `disabled` version
+  function disabled() {
+  }
+  disabled.enabled = false;
+
+  // define the `enabled` version
+  function enabled() {
+
+    var self = enabled;
+
+    // set `diff` timestamp
+    var curr = +new Date();
+    var ms = curr - (prevTime || curr);
+    self.diff = ms;
+    self.prev = prevTime;
+    self.curr = curr;
+    prevTime = curr;
+
+    // add the `color` if not set
+    if (null == self.useColors) self.useColors = exports.useColors();
+    if (null == self.color && self.useColors) self.color = selectColor();
+
+    var args = Array.prototype.slice.call(arguments);
+
+    args[0] = exports.coerce(args[0]);
+
+    if ('string' !== typeof args[0]) {
+      // anything else let's inspect with %o
+      args = ['%o'].concat(args);
+    }
+
+    // apply any `formatters` transformations
+    var index = 0;
+    args[0] = args[0].replace(/%([a-z%])/g, function(match, format) {
+      // if we encounter an escaped % then don't increase the array index
+      if (match === '%%') return match;
+      index++;
+      var formatter = exports.formatters[format];
+      if ('function' === typeof formatter) {
+        var val = args[index];
+        match = formatter.call(self, val);
+
+        // now we need to remove `args[index]` since it's inlined in the `format`
+        args.splice(index, 1);
+        index--;
+      }
+      return match;
+    });
+
+    if ('function' === typeof exports.formatArgs) {
+      args = exports.formatArgs.apply(self, args);
+    }
+    var logFn = enabled.log || exports.log || console.log.bind(console);
+    logFn.apply(self, args);
+  }
+  enabled.enabled = true;
+
+  var fn = exports.enabled(namespace) ? enabled : disabled;
+
+  fn.namespace = namespace;
+
+  return fn;
+}
+
+/**
+ * Enables a debug mode by namespaces. This can include modes
+ * separated by a colon and wildcards.
+ *
+ * @param {String} namespaces
+ * @api public
+ */
+
+function enable(namespaces) {
+  exports.save(namespaces);
+
+  var split = (namespaces || '').split(/[\s,]+/);
+  var len = split.length;
+
+  for (var i = 0; i < len; i++) {
+    if (!split[i]) continue; // ignore empty strings
+    namespaces = split[i].replace(/\*/g, '.*?');
+    if (namespaces[0] === '-') {
+      exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
+    } else {
+      exports.names.push(new RegExp('^' + namespaces + '$'));
+    }
+  }
+}
+
+/**
+ * Disable debug output.
+ *
+ * @api public
+ */
+
+function disable() {
+  exports.enable('');
+}
+
+/**
+ * Returns true if the given mode name is enabled, false otherwise.
+ *
+ * @param {String} name
+ * @return {Boolean}
+ * @api public
+ */
+
+function enabled(name) {
+  var i, len;
+  for (i = 0, len = exports.skips.length; i < len; i++) {
+    if (exports.skips[i].test(name)) {
+      return false;
+    }
+  }
+  for (i = 0, len = exports.names.length; i < len; i++) {
+    if (exports.names[i].test(name)) {
+      return true;
+    }
+  }
+  return false;
+}
+
+/**
+ * Coerce `val`.
+ *
+ * @param {Mixed} val
+ * @return {Mixed}
+ * @api private
+ */
+
+function coerce(val) {
+  if (val instanceof Error) return val.stack || val.message;
+  return val;
+}
+
+},{"ms":24}],24:[function(_dereq_,module,exports){
+/**
+ * Helpers.
+ */
+
+var s = 1000;
+var m = s * 60;
+var h = m * 60;
+var d = h * 24;
+var y = d * 365.25;
+
+/**
+ * Parse or format the given `val`.
+ *
+ * Options:
+ *
+ *  - `long` verbose formatting [false]
+ *
+ * @param {String|Number} val
+ * @param {Object} options
+ * @return {String|Number}
+ * @api public
+ */
+
+module.exports = function(val, options){
+  options = options || {};
+  if ('string' == typeof val) return parse(val);
+  return options.long
+    ? long(val)
+    : short(val);
+};
+
+/**
+ * Parse the given `str` and return milliseconds.
+ *
+ * @param {String} str
+ * @return {Number}
+ * @api private
+ */
+
+function parse(str) {
+  var match = /^((?:\d+)?\.?\d+) *(ms|seconds?|s|minutes?|m|hours?|h|days?|d|years?|y)?$/i.exec(str);
+  if (!match) return;
+  var n = parseFloat(match[1]);
+  var type = (match[2] || 'ms').toLowerCase();
+  switch (type) {
+    case 'years':
+    case 'year':
+    case 'y':
+      return n * y;
+    case 'days':
+    case 'day':
+    case 'd':
+      return n * d;
+    case 'hours':
+    case 'hour':
+    case 'h':
+      return n * h;
+    case 'minutes':
+    case 'minute':
+    case 'm':
+      return n * m;
+    case 'seconds':
+    case 'second':
+    case 's':
+      return n * s;
+    case 'ms':
+      return n;
+  }
+}
+
+/**
+ * Short format for `ms`.
+ *
+ * @param {Number} ms
+ * @return {String}
+ * @api private
+ */
+
+function short(ms) {
+  if (ms >= d) return Math.round(ms / d) + 'd';
+  if (ms >= h) return Math.round(ms / h) + 'h';
+  if (ms >= m) return Math.round(ms / m) + 'm';
+  if (ms >= s) return Math.round(ms / s) + 's';
+  return ms + 'ms';
+}
+
+/**
+ * Long format for `ms`.
+ *
+ * @param {Number} ms
+ * @return {String}
+ * @api private
+ */
+
+function long(ms) {
+  return plural(ms, d, 'day')
+    || plural(ms, h, 'hour')
+    || plural(ms, m, 'minute')
+    || plural(ms, s, 'second')
+    || ms + ' ms';
+}
+
+/**
+ * Pluralization helper.
+ */
+
+function plural(ms, n, name) {
+  if (ms < n) return;
+  if (ms < n * 1.5) return Math.floor(ms / n) + ' ' + name;
+  return Math.ceil(ms / n) + ' ' + name + 's';
+}
+
+},{}],25:[function(_dereq_,module,exports){
+(function (global){
+/**
+ * Module dependencies.
+ */
+
+var keys = _dereq_('./keys');
+var hasBinary = _dereq_('has-binary');
+var sliceBuffer = _dereq_('arraybuffer.slice');
+var base64encoder = _dereq_('base64-arraybuffer');
+var after = _dereq_('after');
+var utf8 = _dereq_('utf8');
+
+/**
+ * Check if we are running an android browser. That requires us to use
+ * ArrayBuffer with polling transports...
+ *
+ * http://ghinda.net/jpeg-blob-ajax-android/
+ */
+
+var isAndroid = navigator.userAgent.match(/Android/i);
+
+/**
+ * Check if we are running in PhantomJS.
+ * Uploading a Blob with PhantomJS does not work correctly, as reported here:
+ * https://github.com/ariya/phantomjs/issues/11395
+ * @type boolean
+ */
+var isPhantomJS = /PhantomJS/i.test(navigator.userAgent);
+
+/**
+ * When true, avoids using Blobs to encode payloads.
+ * @type boolean
+ */
+var dontSendBlobs = isAndroid || isPhantomJS;
+
+/**
+ * Current protocol version.
+ */
+
+exports.protocol = 3;
+
+/**
+ * Packet types.
+ */
+
+var packets = exports.packets = {
+    open:     0    // non-ws
+  , close:    1    // non-ws
+  , ping:     2
+  , pong:     3
+  , message:  4
+  , upgrade:  5
+  , noop:     6
+};
+
+var packetslist = keys(packets);
+
+/**
+ * Premade error packet.
+ */
+
+var err = { type: 'error', data: 'parser error' };
+
+/**
+ * Create a blob api even for blob builder when vendor prefixes exist
+ */
+
+var Blob = _dereq_('blob');
+
+/**
+ * Encodes a packet.
+ *
+ *     <packet type id> [ <data> ]
+ *
+ * Example:
+ *
+ *     5hello world
+ *     3
+ *     4
+ *
+ * Binary is encoded in an identical principle
+ *
+ * @api private
+ */
+
+exports.encodePacket = function (packet, supportsBinary, utf8encode, callback) {
+  if ('function' == typeof supportsBinary) {
+    callback = supportsBinary;
+    supportsBinary = false;
+  }
+
+  if ('function' == typeof utf8encode) {
+    callback = utf8encode;
+    utf8encode = null;
+  }
+
+  var data = (packet.data === undefined)
+    ? undefined
+    : packet.data.buffer || packet.data;
+
+  if (global.ArrayBuffer && data instanceof ArrayBuffer) {
+    return encodeArrayBuffer(packet, supportsBinary, callback);
+  } else if (Blob && data instanceof global.Blob) {
+    return encodeBlob(packet, supportsBinary, callback);
+  }
+
+  // might be an object with { base64: true, data: dataAsBase64String }
+  if (data && data.base64) {
+    return encodeBase64Object(packet, callback);
+  }
+
+  // Sending data as a utf-8 string
+  var encoded = packets[packet.type];
+
+  // data fragment is optional
+  if (undefined !== packet.data) {
+    encoded += utf8encode ? utf8.encode(String(packet.data)) : String(packet.data);
+  }
+
+  return callback('' + encoded);
+
+};
+
+function encodeBase64Object(packet, callback) {
+  // packet data is an object { base64: true, data: dataAsBase64String }
+  var message = 'b' + exports.packets[packet.type] + packet.data.data;
+  return callback(message);
+}
+
+/**
+ * Encode packet helpers for binary types
+ */
+
+function encodeArrayBuffer(packet, supportsBinary, callback) {
+  if (!supportsBinary) {
+    return exports.encodeBase64Packet(packet, callback);
+  }
+
+  var data = packet.data;
+  var contentArray = new Uint8Array(data);
+  var resultBuffer = new Uint8Array(1 + data.byteLength);
+
+  resultBuffer[0] = packets[packet.type];
+  for (var i = 0; i < contentArray.length; i++) {
+    resultBuffer[i+1] = contentArray[i];
+  }
+
+  return callback(resultBuffer.buffer);
+}
+
+function encodeBlobAsArrayBuffer(packet, supportsBinary, callback) {
+  if (!supportsBinary) {
+    return exports.encodeBase64Packet(packet, callback);
+  }
+
+  var fr = new FileReader();
+  fr.onload = function() {
+    packet.data = fr.result;
+    exports.encodePacket(packet, supportsBinary, true, callback);
+  };
+  return fr.readAsArrayBuffer(packet.data);
+}
+
+function encodeBlob(packet, supportsBinary, callback) {
+  if (!supportsBinary) {
+    return exports.encodeBase64Packet(packet, callback);
+  }
+
+  if (dontSendBlobs) {
+    return encodeBlobAsArrayBuffer(packet, supportsBinary, callback);
+  }
+
+  var length = new Uint8Array(1);
+  length[0] = packets[packet.type];
+  var blob = new Blob([length.buffer, packet.data]);
+
+  return callback(blob);
+}
+
+/**
+ * Encodes a packet with binary data in a base64 string
+ *
+ * @param {Object} packet, has `type` and `data`
+ * @return {String} base64 encoded message
+ */
+
+exports.encodeBase64Packet = function(packet, callback) {
+  var message = 'b' + exports.packets[packet.type];
+  if (Blob && packet.data instanceof Blob) {
+    var fr = new FileReader();
+    fr.onload = function() {
+      var b64 = fr.result.split(',')[1];
+      callback(message + b64);
+    };
+    return fr.readAsDataURL(packet.data);
+  }
+
+  var b64data;
+  try {
+    b64data = String.fromCharCode.apply(null, new Uint8Array(packet.data));
+  } catch (e) {
+    // iPhone Safari doesn't let you apply with typed arrays
+    var typed = new Uint8Array(packet.data);
+    var basic = new Array(typed.length);
+    for (var i = 0; i < typed.length; i++) {
+      basic[i] = typed[i];
+    }
+    b64data = String.fromCharCode.apply(null, basic);
+  }
+  message += global.btoa(b64data);
+  return callback(message);
+};
+
+/**
+ * Decodes a packet. Changes format to Blob if requested.
+ *
+ * @return {Object} with `type` and `data` (if any)
+ * @api private
+ */
+
+exports.decodePacket = function (data, binaryType, utf8decode) {
+  // String data
+  if (typeof data == 'string' || data === undefined) {
+    if (data.charAt(0) == 'b') {
+      return exports.decodeBase64Packet(data.substr(1), binaryType);
+    }
+
+    if (utf8decode) {
+      try {
+        data = utf8.decode(data);
+      } catch (e) {
+        return err;
+      }
+    }
+    var type = data.charAt(0);
+
+    if (Number(type) != type || !packetslist[type]) {
+      return err;
+    }
+
+    if (data.length > 1) {
+      return { type: packetslist[type], data: data.substring(1) };
+    } else {
+      return { type: packetslist[type] };
+    }
+  }
+
+  var asArray = new Uint8Array(data);
+  var type = asArray[0];
+  var rest = sliceBuffer(data, 1);
+  if (Blob && binaryType === 'blob') {
+    rest = new Blob([rest]);
+  }
+  return { type: packetslist[type], data: rest };
+};
+
+/**
+ * Decodes a packet encoded in a base64 string
+ *
+ * @param {String} base64 encoded message
+ * @return {Object} with `type` and `data` (if any)
+ */
+
+exports.decodeBase64Packet = function(msg, binaryType) {
+  var type = packetslist[msg.charAt(0)];
+  if (!global.ArrayBuffer) {
+    return { type: type, data: { base64: true, data: msg.substr(1) } };
+  }
+
+  var data = base64encoder.decode(msg.substr(1));
+
+  if (binaryType === 'blob' && Blob) {
+    data = new Blob([data]);
+  }
+
+  return { type: type, data: data };
+};
+
+/**
+ * Encodes multiple messages (payload).
+ *
+ *     <length>:data
+ *
+ * Example:
+ *
+ *     11:hello world2:hi
+ *
+ * If any contents are binary, they will be encoded as base64 strings. Base64
+ * encoded strings are marked with a b before the length specifier
+ *
+ * @param {Array} packets
+ * @api private
+ */
+
+exports.encodePayload = function (packets, supportsBinary, callback) {
+  if (typeof supportsBinary == 'function') {
+    callback = supportsBinary;
+    supportsBinary = null;
+  }
+
+  var isBinary = hasBinary(packets);
+
+  if (supportsBinary && isBinary) {
+    if (Blob && !dontSendBlobs) {
+      return exports.encodePayloadAsBlob(packets, callback);
+    }
+
+    return exports.encodePayloadAsArrayBuffer(packets, callback);
+  }
+
+  if (!packets.length) {
+    return callback('0:');
+  }
+
+  function setLengthHeader(message) {
+    return message.length + ':' + message;
+  }
+
+  function encodeOne(packet, doneCallback) {
+    exports.encodePacket(packet, !isBinary ? false : supportsBinary, true, function(message) {
+      doneCallback(null, setLengthHeader(message));
+    });
+  }
+
+  map(packets, encodeOne, function(err, results) {
+    return callback(results.join(''));
+  });
+};
+
+/**
+ * Async array map using after
+ */
+
+function map(ary, each, done) {
+  var result = new Array(ary.length);
+  var next = after(ary.length, done);
+
+  var eachWithIndex = function(i, el, cb) {
+    each(el, function(error, msg) {
+      result[i] = msg;
+      cb(error, result);
+    });
+  };
+
+  for (var i = 0; i < ary.length; i++) {
+    eachWithIndex(i, ary[i], next);
+  }
+}
+
+/*
+ * Decodes data when a payload is maybe expected. Possible binary contents are
+ * decoded from their base64 representation
+ *
+ * @param {String} data, callback method
+ * @api public
+ */
+
+exports.decodePayload = function (data, binaryType, callback) {
+  if (typeof data != 'string') {
+    return exports.decodePayloadAsBinary(data, binaryType, callback);
+  }
+
+  if (typeof binaryType === 'function') {
+    callback = binaryType;
+    binaryType = null;
+  }
+
+  var packet;
+  if (data == '') {
+    // parser error - ignoring payload
+    return callback(err, 0, 1);
+  }
+
+  var length = ''
+    , n, msg;
+
+  for (var i = 0, l = data.length; i < l; i++) {
+    var chr = data.charAt(i);
+
+    if (':' != chr) {
+      length += chr;
+    } else {
+      if ('' == length || (length != (n = Number(length)))) {
+        // parser error - ignoring payload
+        return callback(err, 0, 1);
+      }
+
+      msg = data.substr(i + 1, n);
+
+      if (length != msg.length) {
+        // parser error - ignoring payload
+        return callback(err, 0, 1);
+      }
+
+      if (msg.length) {
+        packet = exports.decodePacket(msg, binaryType, true);
+
+        if (err.type == packet.type && err.data == packet.data) {
+          // parser error in individual packet - ignoring payload
+          return callback(err, 0, 1);
+        }
+
+        var ret = callback(packet, i + n, l);
+        if (false === ret) return;
+      }
+
+      // advance cursor
+      i += n;
+      length = '';
+    }
+  }
+
+  if (length != '') {
+    // parser error - ignoring payload
+    return callback(err, 0, 1);
+  }
+
+};
+
+/**
+ * Encodes multiple messages (payload) as binary.
+ *
+ * <1 = binary, 0 = string><number from 0-9><number from 0-9>[...]<number
+ * 255><data>
+ *
+ * Example:
+ * 1 3 255 1 2 3, if the binary contents are interpreted as 8 bit integers
+ *
+ * @param {Array} packets
+ * @return {ArrayBuffer} encoded payload
+ * @api private
+ */
+
+exports.encodePayloadAsArrayBuffer = function(packets, callback) {
+  if (!packets.length) {
+    return callback(new ArrayBuffer(0));
+  }
+
+  function encodeOne(packet, doneCallback) {
+    exports.encodePacket(packet, true, true, function(data) {
+      return doneCallback(null, data);
+    });
+  }
+
+  map(packets, encodeOne, function(err, encodedPackets) {
+    var totalLength = encodedPackets.reduce(function(acc, p) {
+      var len;
+      if (typeof p === 'string'){
+        len = p.length;
+      } else {
+        len = p.byteLength;
+      }
+      return acc + len.toString().length + len + 2; // string/binary identifier + separator = 2
+    }, 0);
+
+    var resultArray = new Uint8Array(totalLength);
+
+    var bufferIndex = 0;
+    encodedPackets.forEach(function(p) {
+      var isString = typeof p === 'string';
+      var ab = p;
+      if (isString) {
+        var view = new Uint8Array(p.length);
+        for (var i = 0; i < p.length; i++) {
+          view[i] = p.charCodeAt(i);
+        }
+        ab = view.buffer;
+      }
+
+      if (isString) { // not true binary
+        resultArray[bufferIndex++] = 0;
+      } else { // true binary
+        resultArray[bufferIndex++] = 1;
+      }
+
+      var lenStr = ab.byteLength.toString();
+      for (var i = 0; i < lenStr.length; i++) {
+        resultArray[bufferIndex++] = parseInt(lenStr[i]);
+      }
+      resultArray[bufferIndex++] = 255;
+
+      var view = new Uint8Array(ab);
+      for (var i = 0; i < view.length; i++) {
+        resultArray[bufferIndex++] = view[i];
+      }
+    });
+
+    return callback(resultArray.buffer);
+  });
+};
+
+/**
+ * Encode as Blob
+ */
+
+exports.encodePayloadAsBlob = function(packets, callback) {
+  function encodeOne(packet, doneCallback) {
+    exports.encodePacket(packet, true, true, function(encoded) {
+      var binaryIdentifier = new Uint8Array(1);
+      binaryIdentifier[0] = 1;
+      if (typeof encoded === 'string') {
+        var view = new Uint8Array(encoded.length);
+        for (var i = 0; i < encoded.length; i++) {
+          view[i] = encoded.charCodeAt(i);
+        }
+        encoded = view.buffer;
+        binaryIdentifier[0] = 0;
+      }
+
+      var len = (encoded instanceof ArrayBuffer)
+        ? encoded.byteLength
+        : encoded.size;
+
+      var lenStr = len.toString();
+      var lengthAry = new Uint8Array(lenStr.length + 1);
+      for (var i = 0; i < lenStr.length; i++) {
+        lengthAry[i] = parseInt(lenStr[i]);
+      }
+      lengthAry[lenStr.length] = 255;
+
+      if (Blob) {
+        var blob = new Blob([binaryIdentifier.buffer, lengthAry.buffer, encoded]);
+        doneCallback(null, blob);
+      }
+    });
+  }
+
+  map(packets, encodeOne, function(err, results) {
+    return callback(new Blob(results));
+  });
+};
+
+/*
+ * Decodes data when a payload is maybe expected. Strings are decoded by
+ * interpreting each byte as a key code for entries marked to start with 0. See
+ * description of encodePayloadAsBinary
+ *
+ * @param {ArrayBuffer} data, callback method
+ * @api public
+ */
+
+exports.decodePayloadAsBinary = function (data, binaryType, callback) {
+  if (typeof binaryType === 'function') {
+    callback = binaryType;
+    binaryType = null;
+  }
+
+  var bufferTail = data;
+  var buffers = [];
+
+  var numberTooLong = false;
+  while (bufferTail.byteLength > 0) {
+    var tailArray = new Uint8Array(bufferTail);
+    var isString = tailArray[0] === 0;
+    var msgLength = '';
+
+    for (var i = 1; ; i++) {
+      if (tailArray[i] == 255) break;
+
+      if (msgLength.length > 310) {
+        numberTooLong = true;
+        break;
+      }
+
+      msgLength += tailArray[i];
+    }
+
+    if(numberTooLong) return callback(err, 0, 1);
+
+    bufferTail = sliceBuffer(bufferTail, 2 + msgLength.length);
+    msgLength = parseInt(msgLength);
+
+    var msg = sliceBuffer(bufferTail, 0, msgLength);
+    if (isString) {
+      try {
+        msg = String.fromCharCode.apply(null, new Uint8Array(msg));
+      } catch (e) {
+        // iPhone Safari doesn't let you apply to typed arrays
+        var typed = new Uint8Array(msg);
+        msg = '';
+        for (var i = 0; i < typed.length; i++) {
+          msg += String.fromCharCode(typed[i]);
+        }
+      }
+    }
+
+    buffers.push(msg);
+    bufferTail = sliceBuffer(bufferTail, msgLength);
+  }
+
+  var total = buffers.length;
+  buffers.forEach(function(buffer, i) {
+    callback(exports.decodePacket(buffer, binaryType, true), i, total);
+  });
+};
+
+}).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"./keys":26,"after":27,"arraybuffer.slice":28,"base64-arraybuffer":29,"blob":30,"has-binary":36,"utf8":31}],26:[function(_dereq_,module,exports){
+
+/**
+ * Gets the keys for an object.
+ *
+ * @return {Array} keys
+ * @api private
+ */
+
+module.exports = Object.keys || function keys (obj){
+  var arr = [];
+  var has = Object.prototype.hasOwnProperty;
+
+  for (var i in obj) {
+    if (has.call(obj, i)) {
+      arr.push(i);
+    }
+  }
+  return arr;
+};
+
+},{}],27:[function(_dereq_,module,exports){
+module.exports = after
+
+function after(count, callback, err_cb) {
+    var bail = false
+    err_cb = err_cb || noop
+    proxy.count = count
+
+    return (count === 0) ? callback() : proxy
+
+    function proxy(err, result) {
+        if (proxy.count <= 0) {
+            throw new Error('after called too many times')
+        }
+        --proxy.count
+
+        // after first error, rest are passed to err_cb
+        if (err) {
+            bail = true
+            callback(err)
+            // future error callbacks will go to error handler
+            callback = err_cb
+        } else if (proxy.count === 0 && !bail) {
+            callback(null, result)
+        }
+    }
+}
+
+function noop() {}
+
+},{}],28:[function(_dereq_,module,exports){
+/**
+ * An abstraction for slicing an arraybuffer even when
+ * ArrayBuffer.prototype.slice is not supported
+ *
+ * @api public
+ */
+
+module.exports = function(arraybuffer, start, end) {
+  var bytes = arraybuffer.byteLength;
+  start = start || 0;
+  end = end || bytes;
+
+  if (arraybuffer.slice) { return arraybuffer.slice(start, end); }
+
+  if (start < 0) { start += bytes; }
+  if (end < 0) { end += bytes; }
+  if (end > bytes) { end = bytes; }
+
+  if (start >= bytes || start >= end || bytes === 0) {
+    return new ArrayBuffer(0);
+  }
+
+  var abv = new Uint8Array(arraybuffer);
+  var result = new Uint8Array(end - start);
+  for (var i = start, ii = 0; i < end; i++, ii++) {
+    result[ii] = abv[i];
+  }
+  return result.buffer;
+};
+
+},{}],29:[function(_dereq_,module,exports){
+/*
+ * base64-arraybuffer
+ * https://github.com/niklasvh/base64-arraybuffer
+ *
+ * Copyright (c) 2012 Niklas von Hertzen
+ * Licensed under the MIT license.
+ */
+(function(chars){
+  "use strict";
+
+  exports.encode = function(arraybuffer) {
+    var bytes = new Uint8Array(arraybuffer),
+    i, len = bytes.length, base64 = "";
+
+    for (i = 0; i < len; i+=3) {
+      base64 += chars[bytes[i] >> 2];
+      base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];
+      base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];
+      base64 += chars[bytes[i + 2] & 63];
+    }
+
+    if ((len % 3) === 2) {
+      base64 = base64.substring(0, base64.length - 1) + "=";
+    } else if (len % 3 === 1) {
+      base64 = base64.substring(0, base64.length - 2) + "==";
+    }
+
+    return base64;
+  };
+
+  exports.decode =  function(base64) {
+    var bufferLength = base64.length * 0.75,
+    len = base64.length, i, p = 0,
+    encoded1, encoded2, encoded3, encoded4;
+
+    if (base64[base64.length - 1] === "=") {
+      bufferLength--;
+      if (base64[base64.length - 2] === "=") {
+        bufferLength--;
+      }
+    }
+
+    var arraybuffer = new ArrayBuffer(bufferLength),
+    bytes = new Uint8Array(arraybuffer);
+
+    for (i = 0; i < len; i+=4) {
+      encoded1 = chars.indexOf(base64[i]);
+      encoded2 = chars.indexOf(base64[i+1]);
+      encoded3 = chars.indexOf(base64[i+2]);
+      encoded4 = chars.indexOf(base64[i+3]);
+
+      bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);
+      bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);
+      bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);
+    }
+
+    return arraybuffer;
+  };
+})("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/");
+
+},{}],30:[function(_dereq_,module,exports){
+(function (global){
+/**
+ * Create a blob builder even when vendor prefixes exist
+ */
+
+var BlobBuilder = global.BlobBuilder
+  || global.WebKitBlobBuilder
+  || global.MSBlobBuilder
+  || global.MozBlobBuilder;
+
+/**
+ * Check if Blob constructor is supported
+ */
+
+var blobSupported = (function() {
+  try {
+    var a = new Blob(['hi']);
+    return a.size === 2;
+  } catch(e) {
+    return false;
+  }
+})();
+
+/**
+ * Check if Blob constructor supports ArrayBufferViews
+ * Fails in Safari 6, so we need to map to ArrayBuffers there.
+ */
+
+var blobSupportsArrayBufferView = blobSupported && (function() {
+  try {
+    var b = new Blob([new Uint8Array([1,2])]);
+    return b.size === 2;
+  } catch(e) {
+    return false;
+  }
+})();
+
+/**
+ * Check if BlobBuilder is supported
+ */
+
+var blobBuilderSupported = BlobBuilder
+  && BlobBuilder.prototype.append
+  && BlobBuilder.prototype.getBlob;
+
+/**
+ * Helper function that maps ArrayBufferViews to ArrayBuffers
+ * Used by BlobBuilder constructor and old browsers that didn't
+ * support it in the Blob constructor.
+ */
+
+function mapArrayBufferViews(ary) {
+  for (var i = 0; i < ary.length; i++) {
+    var chunk = ary[i];
+    if (chunk.buffer instanceof ArrayBuffer) {
+      var buf = chunk.buffer;
+
+      // if this is a subarray, make a copy so we only
+      // include the subarray region from the underlying buffer
+      if (chunk.byteLength !== buf.byteLength) {
+        var copy = new Uint8Array(chunk.byteLength);
+        copy.set(new Uint8Array(buf, chunk.byteOffset, chunk.byteLength));
+        buf = copy.buffer;
+      }
+
+      ary[i] = buf;
+    }
+  }
+}
+
+function BlobBuilderConstructor(ary, options) {
+  options = options || {};
+
+  var bb = new BlobBuilder();
+  mapArrayBufferViews(ary);
+
+  for (var i = 0; i < ary.length; i++) {
+    bb.append(ary[i]);
+  }
+
+  return (options.type) ? bb.getBlob(options.type) : bb.getBlob();
+};
+
+function BlobConstructor(ary, options) {
+  mapArrayBufferViews(ary);
+  return new Blob(ary, options || {});
+};
+
+module.exports = (function() {
+  if (blobSupported) {
+    return blobSupportsArrayBufferView ? global.Blob : BlobConstructor;
+  } else if (blobBuilderSupported) {
+    return BlobBuilderConstructor;
+  } else {
+    return undefined;
+  }
+})();
+
+}).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],31:[function(_dereq_,module,exports){
+(function (global){
+/*! https://mths.be/utf8js v2.0.0 by @mathias */
+;(function(root) {
+
+	// Detect free variables `exports`
+	var freeExports = typeof exports == 'object' && exports;
+
+	// Detect free variable `module`
+	var freeModule = typeof module == 'object' && module &&
+		module.exports == freeExports && module;
+
+	// Detect free variable `global`, from Node.js or Browserified code,
+	// and use it as `root`
+	var freeGlobal = typeof global == 'object' && global;
+	if (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal) {
+		root = freeGlobal;
+	}
+
+	/*--------------------------------------------------------------------------*/
+
+	var stringFromCharCode = String.fromCharCode;
+
+	// Taken from https://mths.be/punycode
+	function ucs2decode(string) {
+		var output = [];
+		var counter = 0;
+		var length = string.length;
+		var value;
+		var extra;
+		while (counter < length) {
+			value = string.charCodeAt(counter++);
+			if (value >= 0xD800 && value <= 0xDBFF && counter < length) {
+				// high surrogate, and there is a next character
+				extra = string.charCodeAt(counter++);
+				if ((extra & 0xFC00) == 0xDC00) { // low surrogate
+					output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);
+				} else {
+					// unmatched surrogate; only append this code unit, in case the next
+					// code unit is the high surrogate of a surrogate pair
+					output.push(value);
+					counter--;
+				}
+			} else {
+				output.push(value);
+			}
+		}
+		return output;
+	}
+
+	// Taken from https://mths.be/punycode
+	function ucs2encode(array) {
+		var length = array.length;
+		var index = -1;
+		var value;
+		var output = '';
+		while (++index < length) {
+			value = array[index];
+			if (value > 0xFFFF) {
+				value -= 0x10000;
+				output += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);
+				value = 0xDC00 | value & 0x3FF;
+			}
+			output += stringFromCharCode(value);
+		}
+		return output;
+	}
+
+	function checkScalarValue(codePoint) {
+		if (codePoint >= 0xD800 && codePoint <= 0xDFFF) {
+			throw Error(
+				'Lone surrogate U+' + codePoint.toString(16).toUpperCase() +
+				' is not a scalar value'
+			);
+		}
+	}
+	/*--------------------------------------------------------------------------*/
+
+	function createByte(codePoint, shift) {
+		return stringFromCharCode(((codePoint >> shift) & 0x3F) | 0x80);
+	}
+
+	function encodeCodePoint(codePoint) {
+		if ((codePoint & 0xFFFFFF80) == 0) { // 1-byte sequence
+			return stringFromCharCode(codePoint);
+		}
+		var symbol = '';
+		if ((codePoint & 0xFFFFF800) == 0) { // 2-byte sequence
+			symbol = stringFromCharCode(((codePoint >> 6) & 0x1F) | 0xC0);
+		}
+		else if ((codePoint & 0xFFFF0000) == 0) { // 3-byte sequence
+			checkScalarValue(codePoint);
+			symbol = stringFromCharCode(((codePoint >> 12) & 0x0F) | 0xE0);
+			symbol += createByte(codePoint, 6);
+		}
+		else if ((codePoint & 0xFFE00000) == 0) { // 4-byte sequence
+			symbol = stringFromCharCode(((codePoint >> 18) & 0x07) | 0xF0);
+			symbol += createByte(codePoint, 12);
+			symbol += createByte(codePoint, 6);
+		}
+		symbol += stringFromCharCode((codePoint & 0x3F) | 0x80);
+		return symbol;
+	}
+
+	function utf8encode(string) {
+		var codePoints = ucs2decode(string);
+		var length = codePoints.length;
+		var index = -1;
+		var codePoint;
+		var byteString = '';
+		while (++index < length) {
+			codePoint = codePoints[index];
+			byteString += encodeCodePoint(codePoint);
+		}
+		return byteString;
+	}
+
+	/*--------------------------------------------------------------------------*/
+
+	function readContinuationByte() {
+		if (byteIndex >= byteCount) {
+			throw Error('Invalid byte index');
+		}
+
+		var continuationByte = byteArray[byteIndex] & 0xFF;
+		byteIndex++;
+
+		if ((continuationByte & 0xC0) == 0x80) {
+			return continuationByte & 0x3F;
+		}
+
+		// If we end up here, it’s not a continuation byte
+		throw Error('Invalid continuation byte');
+	}
+
+	function decodeSymbol() {
+		var byte1;
+		var byte2;
+		var byte3;
+		var byte4;
+		var codePoint;
+
+		if (byteIndex > byteCount) {
+			throw Error('Invalid byte index');
+		}
+
+		if (byteIndex == byteCount) {
+			return false;
+		}
+
+		// Read first byte
+		byte1 = byteArray[byteIndex] & 0xFF;
+		byteIndex++;
+
+		// 1-byte sequence (no continuation bytes)
+		if ((byte1 & 0x80) == 0) {
+			return byte1;
+		}
+
+		// 2-byte sequence
+		if ((byte1 & 0xE0) == 0xC0) {
+			var byte2 = readContinuationByte();
+			codePoint = ((byte1 & 0x1F) << 6) | byte2;
+			if (codePoint >= 0x80) {
+				return codePoint;
+			} else {
+				throw Error('Invalid continuation byte');
+			}
+		}
+
+		// 3-byte sequence (may include unpaired surrogates)
+		if ((byte1 & 0xF0) == 0xE0) {
+			byte2 = readContinuationByte();
+			byte3 = readContinuationByte();
+			codePoint = ((byte1 & 0x0F) << 12) | (byte2 << 6) | byte3;
+			if (codePoint >= 0x0800) {
+				checkScalarValue(codePoint);
+				return codePoint;
+			} else {
+				throw Error('Invalid continuation byte');
+			}
+		}
+
+		// 4-byte sequence
+		if ((byte1 & 0xF8) == 0xF0) {
+			byte2 = readContinuationByte();
+			byte3 = readContinuationByte();
+			byte4 = readContinuationByte();
+			codePoint = ((byte1 & 0x0F) << 0x12) | (byte2 << 0x0C) |
+				(byte3 << 0x06) | byte4;
+			if (codePoint >= 0x010000 && codePoint <= 0x10FFFF) {
+				return codePoint;
+			}
+		}
+
+		throw Error('Invalid UTF-8 detected');
+	}
+
+	var byteArray;
+	var byteCount;
+	var byteIndex;
+	function utf8decode(byteString) {
+		byteArray = ucs2decode(byteString);
+		byteCount = byteArray.length;
+		byteIndex = 0;
+		var codePoints = [];
+		var tmp;
+		while ((tmp = decodeSymbol()) !== false) {
+			codePoints.push(tmp);
+		}
+		return ucs2encode(codePoints);
+	}
+
+	/*--------------------------------------------------------------------------*/
+
+	var utf8 = {
+		'version': '2.0.0',
+		'encode': utf8encode,
+		'decode': utf8decode
+	};
+
+	// Some AMD build optimizers, like r.js, check for specific condition patterns
+	// like the following:
+	if (
+		typeof define == 'function' &&
+		typeof define.amd == 'object' &&
+		define.amd
+	) {
+		define(function() {
+			return utf8;
+		});
+	}	else if (freeExports && !freeExports.nodeType) {
+		if (freeModule) { // in Node.js or RingoJS v0.8.0+
+			freeModule.exports = utf8;
+		} else { // in Narwhal or RingoJS v0.7.0-
+			var object = {};
+			var hasOwnProperty = object.hasOwnProperty;
+			for (var key in utf8) {
+				hasOwnProperty.call(utf8, key) && (freeExports[key] = utf8[key]);
+			}
+		}
+	} else { // in Rhino or a web browser
+		root.utf8 = utf8;
+	}
+
+}(this));
+
+}).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],32:[function(_dereq_,module,exports){
+(function (global){
+/**
+ * JSON parse.
+ *
+ * @see Based on jQuery#parseJSON (MIT) and JSON2
+ * @api private
+ */
+
+var rvalidchars = /^[\],:{}\s]*$/;
+var rvalidescape = /\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g;
+var rvalidtokens = /"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g;
+var rvalidbraces = /(?:^|:|,)(?:\s*\[)+/g;
+var rtrimLeft = /^\s+/;
+var rtrimRight = /\s+$/;
+
+module.exports = function parsejson(data) {
+  if ('string' != typeof data || !data) {
+    return null;
+  }
+
+  data = data.replace(rtrimLeft, '').replace(rtrimRight, '');
+
+  // Attempt to parse using the native JSON parser first
+  if (global.JSON && JSON.parse) {
+    return JSON.parse(data);
+  }
+
+  if (rvalidchars.test(data.replace(rvalidescape, '@')
+      .replace(rvalidtokens, ']')
+      .replace(rvalidbraces, ''))) {
+    return (new Function('return ' + data))();
+  }
+};
+}).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],33:[function(_dereq_,module,exports){
+/**
+ * Compiles a querystring
+ * Returns string representation of the object
+ *
+ * @param {Object}
+ * @api private
+ */
+
+exports.encode = function (obj) {
+  var str = '';
+
+  for (var i in obj) {
+    if (obj.hasOwnProperty(i)) {
+      if (str.length) str += '&';
+      str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);
+    }
+  }
+
+  return str;
+};
+
+/**
+ * Parses a simple querystring into an object
+ *
+ * @param {String} qs
+ * @api private
+ */
+
+exports.decode = function(qs){
+  var qry = {};
+  var pairs = qs.split('&');
+  for (var i = 0, l = pairs.length; i < l; i++) {
+    var pair = pairs[i].split('=');
+    qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);
+  }
+  return qry;
+};
+
+},{}],34:[function(_dereq_,module,exports){
+/**
+ * Parses an URI
+ *
+ * @author Steven Levithan <stevenlevithan.com> (MIT license)
+ * @api private
+ */
+
+var re = /^(?:(?![^:@]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/;
+
+var parts = [
+    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'
+];
+
+module.exports = function parseuri(str) {
+    var src = str,
+        b = str.indexOf('['),
+        e = str.indexOf(']');
+
+    if (b != -1 && e != -1) {
+        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);
+    }
+
+    var m = re.exec(str || ''),
+        uri = {},
+        i = 14;
+
+    while (i--) {
+        uri[parts[i]] = m[i] || '';
+    }
+
+    if (b != -1 && e != -1) {
+        uri.source = src;
+        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');
+        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');
+        uri.ipv6uri = true;
+    }
+
+    return uri;
+};
+
+},{}],35:[function(_dereq_,module,exports){
+
+/**
+ * Module dependencies.
+ */
+
+var global = (function() { return this; })();
+
+/**
+ * WebSocket constructor.
+ */
+
+var WebSocket = global.WebSocket || global.MozWebSocket;
+
+/**
+ * Module exports.
+ */
+
+module.exports = WebSocket ? ws : null;
+
+/**
+ * WebSocket constructor.
+ *
+ * The third `opts` options object gets ignored in web browsers, since it's
+ * non-standard, and throws a TypeError if passed to the constructor.
+ * See: https://github.com/einaros/ws/issues/227
+ *
+ * @param {String} uri
+ * @param {Array} protocols (optional)
+ * @param {Object) opts (optional)
+ * @api public
+ */
+
+function ws(uri, protocols, opts) {
+  var instance;
+  if (protocols) {
+    instance = new WebSocket(uri, protocols);
+  } else {
+    instance = new WebSocket(uri);
+  }
+  return instance;
+}
+
+if (WebSocket) ws.prototype = WebSocket.prototype;
+
+},{}],36:[function(_dereq_,module,exports){
+(function (global){
+
+/*
+ * Module requirements.
+ */
+
+var isArray = _dereq_('isarray');
+
+/**
+ * Module exports.
+ */
+
+module.exports = hasBinary;
+
+/**
+ * Checks for binary data.
+ *
+ * Right now only Buffer and ArrayBuffer are supported..
+ *
+ * @param {Object} anything
+ * @api public
+ */
+
+function hasBinary(data) {
+
+  function _hasBinary(obj) {
+    if (!obj) return false;
+
+    if ( (global.Buffer && global.Buffer.isBuffer(obj)) ||
+         (global.ArrayBuffer && obj instanceof ArrayBuffer) ||
+         (global.Blob && obj instanceof Blob) ||
+         (global.File && obj instanceof File)
+        ) {
+      return true;
+    }
+
+    if (isArray(obj)) {
+      for (var i = 0; i < obj.length; i++) {
+          if (_hasBinary(obj[i])) {
+              return true;
+          }
+      }
+    } else if (obj && 'object' == typeof obj) {
+      if (obj.toJSON) {
+        obj = obj.toJSON();
+      }
+
+      for (var key in obj) {
+        if (Object.prototype.hasOwnProperty.call(obj, key) && _hasBinary(obj[key])) {
+          return true;
+        }
+      }
+    }
+
+    return false;
+  }
+
+  return _hasBinary(data);
+}
+
+}).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"isarray":37}],37:[function(_dereq_,module,exports){
+module.exports = Array.isArray || function (arr) {
+  return Object.prototype.toString.call(arr) == '[object Array]';
+};
+
+},{}],38:[function(_dereq_,module,exports){
+
+/**
+ * Module dependencies.
+ */
+
+var global = _dereq_('global');
+
+/**
+ * Module exports.
+ *
+ * Logic borrowed from Modernizr:
+ *
+ *   - https://github.com/Modernizr/Modernizr/blob/master/feature-detects/cors.js
+ */
+
+try {
+  module.exports = 'XMLHttpRequest' in global &&
+    'withCredentials' in new global.XMLHttpRequest();
+} catch (err) {
+  // if XMLHttp support is disabled in IE then it will throw
+  // when trying to create
+  module.exports = false;
+}
+
+},{"global":39}],39:[function(_dereq_,module,exports){
+
+/**
+ * Returns `this`. Execute this without a "context" (i.e. without it being
+ * attached to an object of the left-hand side), and `this` points to the
+ * "global" scope of the current JS execution.
+ */
+
+module.exports = (function () { return this; })();
+
+},{}],40:[function(_dereq_,module,exports){
+
+var indexOf = [].indexOf;
+
+module.exports = function(arr, obj){
+  if (indexOf) return arr.indexOf(obj);
+  for (var i = 0; i < arr.length; ++i) {
+    if (arr[i] === obj) return i;
+  }
+  return -1;
+};
+},{}],41:[function(_dereq_,module,exports){
+
+/**
+ * HOP ref.
+ */
+
+var has = Object.prototype.hasOwnProperty;
+
+/**
+ * Return own keys in `obj`.
+ *
+ * @param {Object} obj
+ * @return {Array}
+ * @api public
+ */
+
+exports.keys = Object.keys || function(obj){
+  var keys = [];
+  for (var key in obj) {
+    if (has.call(obj, key)) {
+      keys.push(key);
+    }
+  }
+  return keys;
+};
+
+/**
+ * Return own values in `obj`.
+ *
+ * @param {Object} obj
+ * @return {Array}
+ * @api public
+ */
+
+exports.values = function(obj){
+  var vals = [];
+  for (var key in obj) {
+    if (has.call(obj, key)) {
+      vals.push(obj[key]);
+    }
+  }
+  return vals;
+};
+
+/**
+ * Merge `b` into `a`.
+ *
+ * @param {Object} a
+ * @param {Object} b
+ * @return {Object} a
+ * @api public
+ */
+
+exports.merge = function(a, b){
+  for (var key in b) {
+    if (has.call(b, key)) {
+      a[key] = b[key];
+    }
+  }
+  return a;
+};
+
+/**
+ * Return length of `obj`.
+ *
+ * @param {Object} obj
+ * @return {Number}
+ * @api public
+ */
+
+exports.length = function(obj){
+  return exports.keys(obj).length;
+};
+
+/**
+ * Check if `obj` is empty.
+ *
+ * @param {Object} obj
+ * @return {Boolean}
+ * @api public
+ */
+
+exports.isEmpty = function(obj){
+  return 0 == exports.length(obj);
+};
+},{}],42:[function(_dereq_,module,exports){
+/**
+ * Parses an URI
+ *
+ * @author Steven Levithan <stevenlevithan.com> (MIT license)
+ * @api private
+ */
+
+var re = /^(?:(?![^:@]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/;
+
+var parts = [
+    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host'
+  , 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'
+];
+
+module.exports = function parseuri(str) {
+  var m = re.exec(str || '')
+    , uri = {}
+    , i = 14;
+
+  while (i--) {
+    uri[parts[i]] = m[i] || '';
+  }
+
+  return uri;
+};
+
+},{}],43:[function(_dereq_,module,exports){
+(function (global){
+/*global Blob,File*/
+
+/**
+ * Module requirements
+ */
+
+var isArray = _dereq_('isarray');
+var isBuf = _dereq_('./is-buffer');
+
+/**
+ * Replaces every Buffer | ArrayBuffer in packet with a numbered placeholder.
+ * Anything with blobs or files should be fed through removeBlobs before coming
+ * here.
+ *
+ * @param {Object} packet - socket.io event packet
+ * @return {Object} with deconstructed packet and list of buffers
+ * @api public
+ */
+
+exports.deconstructPacket = function(packet){
+  var buffers = [];
+  var packetData = packet.data;
+
+  function _deconstructPacket(data) {
+    if (!data) return data;
+
+    if (isBuf(data)) {
+      var placeholder = { _placeholder: true, num: buffers.length };
+      buffers.push(data);
+      return placeholder;
+    } else if (isArray(data)) {
+      var newData = new Array(data.length);
+      for (var i = 0; i < data.length; i++) {
+        newData[i] = _deconstructPacket(data[i]);
+      }
+      return newData;
+    } else if ('object' == typeof data && !(data instanceof Date)) {
+      var newData = {};
+      for (var key in data) {
+        newData[key] = _deconstructPacket(data[key]);
+      }
+      return newData;
+    }
+    return data;
+  }
+
+  var pack = packet;
+  pack.data = _deconstructPacket(packetData);
+  pack.attachments = buffers.length; // number of binary 'attachments'
+  return {packet: pack, buffers: buffers};
+};
+
+/**
+ * Reconstructs a binary packet from its placeholder packet and buffers
+ *
+ * @param {Object} packet - event packet with placeholders
+ * @param {Array} buffers - binary buffers to put in placeholder positions
+ * @return {Object} reconstructed packet
+ * @api public
+ */
+
+exports.reconstructPacket = function(packet, buffers) {
+  var curPlaceHolder = 0;
+
+  function _reconstructPacket(data) {
+    if (data && data._placeholder) {
+      var buf = buffers[data.num]; // appropriate buffer (should be natural order anyway)
+      return buf;
+    } else if (isArray(data)) {
+      for (var i = 0; i < data.length; i++) {
+        data[i] = _reconstructPacket(data[i]);
+      }
+      return data;
+    } else if (data && 'object' == typeof data) {
+      for (var key in data) {
+        data[key] = _reconstructPacket(data[key]);
+      }
+      return data;
+    }
+    return data;
+  }
+
+  packet.data = _reconstructPacket(packet.data);
+  packet.attachments = undefined; // no longer useful
+  return packet;
+};
+
+/**
+ * Asynchronously removes Blobs or Files from data via
+ * FileReader's readAsArrayBuffer method. Used before encoding
+ * data as msgpack. Calls callback with the blobless data.
+ *
+ * @param {Object} data
+ * @param {Function} callback
+ * @api private
+ */
+
+exports.removeBlobs = function(data, callback) {
+  function _removeBlobs(obj, curKey, containingObject) {
+    if (!obj) return obj;
+
+    // convert any blob
+    if ((global.Blob && obj instanceof Blob) ||
+        (global.File && obj instanceof File)) {
+      pendingBlobs++;
+
+      // async filereader
+      var fileReader = new FileReader();
+      fileReader.onload = function() { // this.result == arraybuffer
+        if (containingObject) {
+          containingObject[curKey] = this.result;
+        }
+        else {
+          bloblessData = this.result;
+        }
+
+        // if nothing pending its callback time
+        if(! --pendingBlobs) {
+          callback(bloblessData);
+        }
+      };
+
+      fileReader.readAsArrayBuffer(obj); // blob -> arraybuffer
+    } else if (isArray(obj)) { // handle array
+      for (var i = 0; i < obj.length; i++) {
+        _removeBlobs(obj[i], i, obj);
+      }
+    } else if (obj && 'object' == typeof obj && !isBuf(obj)) { // and object
+      for (var key in obj) {
+        _removeBlobs(obj[key], key, obj);
+      }
+    }
+  }
+
+  var pendingBlobs = 0;
+  var bloblessData = data;
+  _removeBlobs(bloblessData);
+  if (!pendingBlobs) {
+    callback(bloblessData);
+  }
+};
+
+}).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"./is-buffer":45,"isarray":46}],44:[function(_dereq_,module,exports){
+
+/**
+ * Module dependencies.
+ */
+
+var debug = _dereq_('debug')('socket.io-parser');
+var json = _dereq_('json3');
+var isArray = _dereq_('isarray');
+var Emitter = _dereq_('component-emitter');
+var binary = _dereq_('./binary');
+var isBuf = _dereq_('./is-buffer');
+
+/**
+ * Protocol version.
+ *
+ * @api public
+ */
+
+exports.protocol = 4;
+
+/**
+ * Packet types.
+ *
+ * @api public
+ */
+
+exports.types = [
+  'CONNECT',
+  'DISCONNECT',
+  'EVENT',
+  'BINARY_EVENT',
+  'ACK',
+  'BINARY_ACK',
+  'ERROR'
+];
+
+/**
+ * Packet type `connect`.
+ *
+ * @api public
+ */
+
+exports.CONNECT = 0;
+
+/**
+ * Packet type `disconnect`.
+ *
+ * @api public
+ */
+
+exports.DISCONNECT = 1;
+
+/**
+ * Packet type `event`.
+ *
+ * @api public
+ */
+
+exports.EVENT = 2;
+
+/**
+ * Packet type `ack`.
+ *
+ * @api public
+ */
+
+exports.ACK = 3;
+
+/**
+ * Packet type `error`.
+ *
+ * @api public
+ */
+
+exports.ERROR = 4;
+
+/**
+ * Packet type 'binary event'
+ *
+ * @api public
+ */
+
+exports.BINARY_EVENT = 5;
+
+/**
+ * Packet type `binary ack`. For acks with binary arguments.
+ *
+ * @api public
+ */
+
+exports.BINARY_ACK = 6;
+
+/**
+ * Encoder constructor.
+ *
+ * @api public
+ */
+
+exports.Encoder = Encoder;
+
+/**
+ * Decoder constructor.
+ *
+ * @api public
+ */
+
+exports.Decoder = Decoder;
+
+/**
+ * A socket.io Encoder instance
+ *
+ * @api public
+ */
+
+function Encoder() {}
+
+/**
+ * Encode a packet as a single string if non-binary, or as a
+ * buffer sequence, depending on packet type.
+ *
+ * @param {Object} obj - packet object
+ * @param {Function} callback - function to handle encodings (likely engine.write)
+ * @return Calls callback with Array of encodings
+ * @api public
+ */
+
+Encoder.prototype.encode = function(obj, callback){
+  debug('encoding packet %j', obj);
+
+  if (exports.BINARY_EVENT == obj.type || exports.BINARY_ACK == obj.type) {
+    encodeAsBinary(obj, callback);
+  }
+  else {
+    var encoding = encodeAsString(obj);
+    callback([encoding]);
+  }
+};
+
+/**
+ * Encode packet as string.
+ *
+ * @param {Object} packet
+ * @return {String} encoded
+ * @api private
+ */
+
+function encodeAsString(obj) {
+  var str = '';
+  var nsp = false;
+
+  // first is type
+  str += obj.type;
+
+  // attachments if we have them
+  if (exports.BINARY_EVENT == obj.type || exports.BINARY_ACK == obj.type) {
+    str += obj.attachments;
+    str += '-';
+  }
+
+  // if we have a namespace other than `/`
+  // we append it followed by a comma `,`
+  if (obj.nsp && '/' != obj.nsp) {
+    nsp = true;
+    str += obj.nsp;
+  }
+
+  // immediately followed by the id
+  if (null != obj.id) {
+    if (nsp) {
+      str += ',';
+      nsp = false;
+    }
+    str += obj.id;
+  }
+
+  // json data
+  if (null != obj.data) {
+    if (nsp) str += ',';
+    str += json.stringify(obj.data);
+  }
+
+  debug('encoded %j as %s', obj, str);
+  return str;
+}
+
+/**
+ * Encode packet as 'buffer sequence' by removing blobs, and
+ * deconstructing packet into object with placeholders and
+ * a list of buffers.
+ *
+ * @param {Object} packet
+ * @return {Buffer} encoded
+ * @api private
+ */
+
+function encodeAsBinary(obj, callback) {
+
+  function writeEncoding(bloblessData) {
+    var deconstruction = binary.deconstructPacket(bloblessData);
+    var pack = encodeAsString(deconstruction.packet);
+    var buffers = deconstruction.buffers;
+
+    buffers.unshift(pack); // add packet info to beginning of data list
+    callback(buffers); // write all the buffers
+  }
+
+  binary.removeBlobs(obj, writeEncoding);
+}
+
+/**
+ * A socket.io Decoder instance
+ *
+ * @return {Object} decoder
+ * @api public
+ */
+
+function Decoder() {
+  this.reconstructor = null;
+}
+
+/**
+ * Mix in `Emitter` with Decoder.
+ */
+
+Emitter(Decoder.prototype);
+
+/**
+ * Decodes an ecoded packet string into packet JSON.
+ *
+ * @param {String} obj - encoded packet
+ * @return {Object} packet
+ * @api public
+ */
+
+Decoder.prototype.add = function(obj) {
+  var packet;
+  if ('string' == typeof obj) {
+    packet = decodeString(obj);
+    if (exports.BINARY_EVENT == packet.type || exports.BINARY_ACK == packet.type) { // binary packet's json
+      this.reconstructor = new BinaryReconstructor(packet);
+
+      // no attachments, labeled binary but no binary data to follow
+      if (this.reconstructor.reconPack.attachments === 0) {
+        this.emit('decoded', packet);
+      }
+    } else { // non-binary full packet
+      this.emit('decoded', packet);
+    }
+  }
+  else if (isBuf(obj) || obj.base64) { // raw binary data
+    if (!this.reconstructor) {
+      throw new Error('got binary data when not reconstructing a packet');
+    } else {
+      packet = this.reconstructor.takeBinaryData(obj);
+      if (packet) { // received final buffer
+        this.reconstructor = null;
+        this.emit('decoded', packet);
+      }
+    }
+  }
+  else {
+    throw new Error('Unknown type: ' + obj);
+  }
+};
+
+/**
+ * Decode a packet String (JSON data)
+ *
+ * @param {String} str
+ * @return {Object} packet
+ * @api private
+ */
+
+function decodeString(str) {
+  var p = {};
+  var i = 0;
+
+  // look up type
+  p.type = Number(str.charAt(0));
+  if (null == exports.types[p.type]) return error();
+
+  // look up attachments if type binary
+  if (exports.BINARY_EVENT == p.type || exports.BINARY_ACK == p.type) {
+    var buf = '';
+    while (str.charAt(++i) != '-') {
+      buf += str.charAt(i);
+      if (i == str.length) break;
+    }
+    if (buf != Number(buf) || str.charAt(i) != '-') {
+      throw new Error('Illegal attachments');
+    }
+    p.attachments = Number(buf);
+  }
+
+  // look up namespace (if any)
+  if ('/' == str.charAt(i + 1)) {
+    p.nsp = '';
+    while (++i) {
+      var c = str.charAt(i);
+      if (',' == c) break;
+      p.nsp += c;
+      if (i == str.length) break;
+    }
+  } else {
+    p.nsp = '/';
+  }
+
+  // look up id
+  var next = str.charAt(i + 1);
+  if ('' !== next && Number(next) == next) {
+    p.id = '';
+    while (++i) {
+      var c = str.charAt(i);
+      if (null == c || Number(c) != c) {
+        --i;
+        break;
+      }
+      p.id += str.charAt(i);
+      if (i == str.length) break;
+    }
+    p.id = Number(p.id);
+  }
+
+  // look up json data
+  if (str.charAt(++i)) {
+    try {
+      p.data = json.parse(str.substr(i));
+    } catch(e){
+      return error();
+    }
+  }
+
+  debug('decoded %s as %j', str, p);
+  return p;
+}
+
+/**
+ * Deallocates a parser's resources
+ *
+ * @api public
+ */
+
+Decoder.prototype.destroy = function() {
+  if (this.reconstructor) {
+    this.reconstructor.finishedReconstruction();
+  }
+};
+
+/**
+ * A manager of a binary event's 'buffer sequence'. Should
+ * be constructed whenever a packet of type BINARY_EVENT is
+ * decoded.
+ *
+ * @param {Object} packet
+ * @return {BinaryReconstructor} initialized reconstructor
+ * @api private
+ */
+
+function BinaryReconstructor(packet) {
+  this.reconPack = packet;
+  this.buffers = [];
+}
+
+/**
+ * Method to be called when binary data received from connection
+ * after a BINARY_EVENT packet.
+ *
+ * @param {Buffer | ArrayBuffer} binData - the raw binary data received
+ * @return {null | Object} returns null if more binary data is expected or
+ *   a reconstructed packet object if all buffers have been received.
+ * @api private
+ */
+
+BinaryReconstructor.prototype.takeBinaryData = function(binData) {
+  this.buffers.push(binData);
+  if (this.buffers.length == this.reconPack.attachments) { // done with buffer list
+    var packet = binary.reconstructPacket(this.reconPack, this.buffers);
+    this.finishedReconstruction();
+    return packet;
+  }
+  return null;
+};
+
+/**
+ * Cleans up binary packet reconstruction variables.
+ *
+ * @api private
+ */
+
+BinaryReconstructor.prototype.finishedReconstruction = function() {
+  this.reconPack = null;
+  this.buffers = [];
+};
+
+function error(data){
+  return {
+    type: exports.ERROR,
+    data: 'parser error'
+  };
+}
+
+},{"./binary":43,"./is-buffer":45,"component-emitter":9,"debug":10,"isarray":46,"json3":47}],45:[function(_dereq_,module,exports){
+(function (global){
+
+module.exports = isBuf;
+
+/**
+ * Returns true if obj is a buffer or an arraybuffer.
+ *
+ * @api private
+ */
+
+function isBuf(obj) {
+  return (global.Buffer && global.Buffer.isBuffer(obj)) ||
+         (global.ArrayBuffer && obj instanceof ArrayBuffer);
+}
+
+}).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],46:[function(_dereq_,module,exports){
+module.exports=_dereq_(37)
+},{}],47:[function(_dereq_,module,exports){
+/*! JSON v3.2.6 | http://bestiejs.github.io/json3 | Copyright 2012-2013, Kit Cambridge | http://kit.mit-license.org */
+;(function (window) {
+  // Convenience aliases.
+  var getClass = {}.toString, isProperty, forEach, undef;
+
+  // Detect the `define` function exposed by asynchronous module loaders. The
+  // strict `define` check is necessary for compatibility with `r.js`.
+  var isLoader = typeof define === "function" && define.amd;
+
+  // Detect native implementations.
+  var nativeJSON = typeof JSON == "object" && JSON;
+
+  // Set up the JSON 3 namespace, preferring the CommonJS `exports` object if
+  // available.
+  var JSON3 = typeof exports == "object" && exports && !exports.nodeType && exports;
+
+  if (JSON3 && nativeJSON) {
+    // Explicitly delegate to the native `stringify` and `parse`
+    // implementations in CommonJS environments.
+    JSON3.stringify = nativeJSON.stringify;
+    JSON3.parse = nativeJSON.parse;
+  } else {
+    // Export for web browsers, JavaScript engines, and asynchronous module
+    // loaders, using the global `JSON` object if available.
+    JSON3 = window.JSON = nativeJSON || {};
+  }
+
+  // Test the `Date#getUTC*` methods. Based on work by @Yaffle.
+  var isExtended = new Date(-3509827334573292);
+  try {
+    // The `getUTCFullYear`, `Month`, and `Date` methods return nonsensical
+    // results for certain dates in Opera >= 10.53.
+    isExtended = isExtended.getUTCFullYear() == -109252 && isExtended.getUTCMonth() === 0 && isExtended.getUTCDate() === 1 &&
+      // Safari < 2.0.2 stores the internal millisecond time value correctly,
+      // but clips the values returned by the date methods to the range of
+      // signed 32-bit integers ([-2 ** 31, 2 ** 31 - 1]).
+      isExtended.getUTCHours() == 10 && isExtended.getUTCMinutes() == 37 && isExtended.getUTCSeconds() == 6 && isExtended.getUTCMilliseconds() == 708;
+  } catch (exception) {}
+
+  // Internal: Determines whether the native `JSON.stringify` and `parse`
+  // implementations are spec-compliant. Based on work by Ken Snyder.
+  function has(name) {
+    if (has[name] !== undef) {
+      // Return cached feature test result.
+      return has[name];
+    }
+
+    var isSupported;
+    if (name == "bug-string-char-index") {
+      // IE <= 7 doesn't support accessing string characters using square
+      // bracket notation. IE 8 only supports this for primitives.
+      isSupported = "a"[0] != "a";
+    } else if (name == "json") {
+      // Indicates whether both `JSON.stringify` and `JSON.parse` are
+      // supported.
+      isSupported = has("json-stringify") && has("json-parse");
+    } else {
+      var value, serialized = '{"a":[1,true,false,null,"\\u0000\\b\\n\\f\\r\\t"]}';
+      // Test `JSON.stringify`.
+      if (name == "json-stringify") {
+        var stringify = JSON3.stringify, stringifySupported = typeof stringify == "function" && isExtended;
+        if (stringifySupported) {
+          // A test function object with a custom `toJSON` method.
+          (value = function () {
+            return 1;
+          }).toJSON = value;
+          try {
+            stringifySupported =
+              // Firefox 3.1b1 and b2 serialize string, number, and boolean
+              // primitives as object literals.
+              stringify(0) === "0" &&
+              // FF 3.1b1, b2, and JSON 2 serialize wrapped primitives as object
+              // literals.
+              stringify(new Number()) === "0" &&
+              stringify(new String()) == '""' &&
+              // FF 3.1b1, 2 throw an error if the value is `null`, `undefined`, or
+              // does not define a canonical JSON representation (this applies to
+              // objects with `toJSON` properties as well, *unless* they are nested
+              // within an object or array).
+              stringify(getClass) === undef &&
+              // IE 8 serializes `undefined` as `"undefined"`. Safari <= 5.1.7 and
+              // FF 3.1b3 pass this test.
+              stringify(undef) === undef &&
+              // Safari <= 5.1.7 and FF 3.1b3 throw `Error`s and `TypeError`s,
+              // respectively, if the value is omitted entirely.
+              stringify() === undef &&
+              // FF 3.1b1, 2 throw an error if the given value is not a number,
+              // string, array, object, Boolean, or `null` literal. This applies to
+              // objects with custom `toJSON` methods as well, unless they are nested
+              // inside object or array literals. YUI 3.0.0b1 ignores custom `toJSON`
+              // methods entirely.
+              stringify(value) === "1" &&
+              stringify([value]) == "[1]" &&
+              // Prototype <= 1.6.1 serializes `[undefined]` as `"[]"` instead of
+              // `"[null]"`.
+              stringify([undef]) == "[null]" &&
+              // YUI 3.0.0b1 fails to serialize `null` literals.
+              stringify(null) == "null" &&
+              // FF 3.1b1, 2 halts serialization if an array contains a function:
+              // `[1, true, getClass, 1]` serializes as "[1,true,],". FF 3.1b3
+              // elides non-JSON values from objects and arrays, unless they
+              // define custom `toJSON` methods.
+              stringify([undef, getClass, null]) == "[null,null,null]" &&
+              // Simple serialization test. FF 3.1b1 uses Unicode escape sequences
+              // where character escape codes are expected (e.g., `\b` => `\u0008`).
+              stringify({ "a": [value, true, false, null, "\x00\b\n\f\r\t"] }) == serialized &&
+              // FF 3.1b1 and b2 ignore the `filter` and `width` arguments.
+              stringify(null, value) === "1" &&
+              stringify([1, 2], null, 1) == "[\n 1,\n 2\n]" &&
+              // JSON 2, Prototype <= 1.7, and older WebKit builds incorrectly
+              // serialize extended years.
+              stringify(new Date(-8.64e15)) == '"-271821-04-20T00:00:00.000Z"' &&
+              // The milliseconds are optional in ES 5, but required in 5.1.
+              stringify(new Date(8.64e15)) == '"+275760-09-13T00:00:00.000Z"' &&
+              // Firefox <= 11.0 incorrectly serializes years prior to 0 as negative
+              // four-digit years instead of six-digit years. Credits: @Yaffle.
+              stringify(new Date(-621987552e5)) == '"-000001-01-01T00:00:00.000Z"' &&
+              // Safari <= 5.1.5 and Opera >= 10.53 incorrectly serialize millisecond
+              // values less than 1000. Credits: @Yaffle.
+              stringify(new Date(-1)) == '"1969-12-31T23:59:59.999Z"';
+          } catch (exception) {
+            stringifySupported = false;
+          }
+        }
+        isSupported = stringifySupported;
+      }
+      // Test `JSON.parse`.
+      if (name == "json-parse") {
+        var parse = JSON3.parse;
+        if (typeof parse == "function") {
+          try {
+            // FF 3.1b1, b2 will throw an exception if a bare literal is provided.
+            // Conforming implementations should also coerce the initial argument to
+            // a string prior to parsing.
+            if (parse("0") === 0 && !parse(false)) {
+              // Simple parsing test.
+              value = parse(serialized);
+              var parseSupported = value["a"].length == 5 && value["a"][0] === 1;
+              if (parseSupported) {
+                try {
+                  // Safari <= 5.1.2 and FF 3.1b1 allow unescaped tabs in strings.
+                  parseSupported = !parse('"\t"');
+                } catch (exception) {}
+                if (parseSupported) {
+                  try {
+                    // FF 4.0 and 4.0.1 allow leading `+` signs and leading
+                    // decimal points. FF 4.0, 4.0.1, and IE 9-10 also allow
+                    // certain octal literals.
+                    parseSupported = parse("01") !== 1;
+                  } catch (exception) {}
+                }
+                if (parseSupported) {
+                  try {
+                    // FF 4.0, 4.0.1, and Rhino 1.7R3-R4 allow trailing decimal
+                    // points. These environments, along with FF 3.1b1 and 2,
+                    // also allow trailing commas in JSON objects and arrays.
+                    parseSupported = parse("1.") !== 1;
+                  } catch (exception) {}
+                }
+              }
+            }
+          } catch (exception) {
+            parseSupported = false;
+          }
+        }
+        isSupported = parseSupported;
+      }
+    }
+    return has[name] = !!isSupported;
+  }
+
+  if (!has("json")) {
+    // Common `[[Class]]` name aliases.
+    var functionClass = "[object Function]";
+    var dateClass = "[object Date]";
+    var numberClass = "[object Number]";
+    var stringClass = "[object String]";
+    var arrayClass = "[object Array]";
+    var booleanClass = "[object Boolean]";
+
+    // Detect incomplete support for accessing string characters by index.
+    var charIndexBuggy = has("bug-string-char-index");
+
+    // Define additional utility methods if the `Date` methods are buggy.
+    if (!isExtended) {
+      var floor = Math.floor;
+      // A mapping between the months of the year and the number of days between
+      // January 1st and the first of the respective month.
+      var Months = [0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334];
+      // Internal: Calculates the number of days between the Unix epoch and the
+      // first day of the given month.
+      var getDay = function (year, month) {
+        return Months[month] + 365 * (year - 1970) + floor((year - 1969 + (month = +(month > 1))) / 4) - floor((year - 1901 + month) / 100) + floor((year - 1601 + month) / 400);
+      };
+    }
+
+    // Internal: Determines if a property is a direct property of the given
+    // object. Delegates to the native `Object#hasOwnProperty` method.
+    if (!(isProperty = {}.hasOwnProperty)) {
+      isProperty = function (property) {
+        var members = {}, constructor;
+        if ((members.__proto__ = null, members.__proto__ = {
+          // The *proto* property cannot be set multiple times in recent
+          // versions of Firefox and SeaMonkey.
+          "toString": 1
+        }, members).toString != getClass) {
+          // Safari <= 2.0.3 doesn't implement `Object#hasOwnProperty`, but
+          // supports the mutable *proto* property.
+          isProperty = function (property) {
+            // Capture and break the object's prototype chain (see section 8.6.2
+            // of the ES 5.1 spec). The parenthesized expression prevents an
+            // unsafe transformation by the Closure Compiler.
+            var original = this.__proto__, result = property in (this.__proto__ = null, this);
+            // Restore the original prototype chain.
+            this.__proto__ = original;
+            return result;
+          };
+        } else {
+          // Capture a reference to the top-level `Object` constructor.
+          constructor = members.constructor;
+          // Use the `constructor` property to simulate `Object#hasOwnProperty` in
+          // other environments.
+          isProperty = function (property) {
+            var parent = (this.constructor || constructor).prototype;
+            return property in this && !(property in parent && this[property] === parent[property]);
+          };
+        }
+        members = null;
+        return isProperty.call(this, property);
+      };
+    }
+
+    // Internal: A set of primitive types used by `isHostType`.
+    var PrimitiveTypes = {
+      'boolean': 1,
+      'number': 1,
+      'string': 1,
+      'undefined': 1
+    };
+
+    // Internal: Determines if the given object `property` value is a
+    // non-primitive.
+    var isHostType = function (object, property) {
+      var type = typeof object[property];
+      return type == 'object' ? !!object[property] : !PrimitiveTypes[type];
+    };
+
+    // Internal: Normalizes the `for...in` iteration algorithm across
+    // environments. Each enumerated key is yielded to a `callback` function.
+    forEach = function (object, callback) {
+      var size = 0, Properties, members, property;
+
+      // Tests for bugs in the current environment's `for...in` algorithm. The
+      // `valueOf` property inherits the non-enumerable flag from
+      // `Object.prototype` in older versions of IE, Netscape, and Mozilla.
+      (Properties = function () {
+        this.valueOf = 0;
+      }).prototype.valueOf = 0;
+
+      // Iterate over a new instance of the `Properties` class.
+      members = new Properties();
+      for (property in members) {
+        // Ignore all properties inherited from `Object.prototype`.
+        if (isProperty.call(members, property)) {
+          size++;
+        }
+      }
+      Properties = members = null;
+
+      // Normalize the iteration algorithm.
+      if (!size) {
+        // A list of non-enumerable properties inherited from `Object.prototype`.
+        members = ["valueOf", "toString", "toLocaleString", "propertyIsEnumerable", "isPrototypeOf", "hasOwnProperty", "constructor"];
+        // IE <= 8, Mozilla 1.0, and Netscape 6.2 ignore shadowed non-enumerable
+        // properties.
+        forEach = function (object, callback) {
+          var isFunction = getClass.call(object) == functionClass, property, length;
+          var hasProperty = !isFunction && typeof object.constructor != 'function' && isHostType(object, 'hasOwnProperty') ? object.hasOwnProperty : isProperty;
+          for (property in object) {
+            // Gecko <= 1.0 enumerates the `prototype` property of functions under
+            // certain conditions; IE does not.
+            if (!(isFunction && property == "prototype") && hasProperty.call(object, property)) {
+              callback(property);
+            }
+          }
+          // Manually invoke the callback for each non-enumerable property.
+          for (length = members.length; property = members[--length]; hasProperty.call(object, property) && callback(property));
+        };
+      } else if (size == 2) {
+        // Safari <= 2.0.4 enumerates shadowed properties twice.
+        forEach = function (object, callback) {
+          // Create a set of iterated properties.
+          var members = {}, isFunction = getClass.call(object) == functionClass, property;
+          for (property in object) {
+            // Store each property name to prevent double enumeration. The
+            // `prototype` property of functions is not enumerated due to cross-
+            // environment inconsistencies.
+            if (!(isFunction && property == "prototype") && !isProperty.call(members, property) && (members[property] = 1) && isProperty.call(object, property)) {
+              callback(property);
+            }
+          }
+        };
+      } else {
+        // No bugs detected; use the standard `for...in` algorithm.
+        forEach = function (object, callback) {
+          var isFunction = getClass.call(object) == functionClass, property, isConstructor;
+          for (property in object) {
+            if (!(isFunction && property == "prototype") && isProperty.call(object, property) && !(isConstructor = property === "constructor")) {
+              callback(property);
+            }
+          }
+          // Manually invoke the callback for the `constructor` property due to
+          // cross-environment inconsistencies.
+          if (isConstructor || isProperty.call(object, (property = "constructor"))) {
+            callback(property);
+          }
+        };
+      }
+      return forEach(object, callback);
+    };
+
+    // Public: Serializes a JavaScript `value` as a JSON string. The optional
+    // `filter` argument may specify either a function that alters how object and
+    // array members are serialized, or an array of strings and numbers that
+    // indicates which properties should be serialized. The optional `width`
+    // argument may be either a string or number that specifies the indentation
+    // level of the output.
+    if (!has("json-stringify")) {
+      // Internal: A map of control characters and their escaped equivalents.
+      var Escapes = {
+        92: "\\\\",
+        34: '\\"',
+        8: "\\b",
+        12: "\\f",
+        10: "\\n",
+        13: "\\r",
+        9: "\\t"
+      };
+
+      // Internal: Converts `value` into a zero-padded string such that its
+      // length is at least equal to `width`. The `width` must be <= 6.
+      var leadingZeroes = "000000";
+      var toPaddedString = function (width, value) {
+        // The `|| 0` expression is necessary to work around a bug in
+        // Opera <= 7.54u2 where `0 == -0`, but `String(-0) !== "0"`.
+        return (leadingZeroes + (value || 0)).slice(-width);
+      };
+
+      // Internal: Double-quotes a string `value`, replacing all ASCII control
+      // characters (characters with code unit values between 0 and 31) with
+      // their escaped equivalents. This is an implementation of the
+      // `Quote(value)` operation defined in ES 5.1 section 15.12.3.
+      var unicodePrefix = "\\u00";
+      var quote = function (value) {
+        var result = '"', index = 0, length = value.length, isLarge = length > 10 && charIndexBuggy, symbols;
+        if (isLarge) {
+          symbols = value.split("");
+        }
+        for (; index < length; index++) {
+          var charCode = value.charCodeAt(index);
+          // If the character is a control character, append its Unicode or
+          // shorthand escape sequence; otherwise, append the character as-is.
+          switch (charCode) {
+            case 8: case 9: case 10: case 12: case 13: case 34: case 92:
+              result += Escapes[charCode];
+              break;
+            default:
+              if (charCode < 32) {
+                result += unicodePrefix + toPaddedString(2, charCode.toString(16));
+                break;
+              }
+              result += isLarge ? symbols[index] : charIndexBuggy ? value.charAt(index) : value[index];
+          }
+        }
+        return result + '"';
+      };
+
+      // Internal: Recursively serializes an object. Implements the
+      // `Str(key, holder)`, `JO(value)`, and `JA(value)` operations.
+      var serialize = function (property, object, callback, properties, whitespace, indentation, stack) {
+        var value, className, year, month, date, time, hours, minutes, seconds, milliseconds, results, element, index, length, prefix, result;
+        try {
+          // Necessary for host object support.
+          value = object[property];
+        } catch (exception) {}
+        if (typeof value == "object" && value) {
+          className = getClass.call(value);
+          if (className == dateClass && !isProperty.call(value, "toJSON")) {
+            if (value > -1 / 0 && value < 1 / 0) {
+              // Dates are serialized according to the `Date#toJSON` method
+              // specified in ES 5.1 section 15.9.5.44. See section 15.9.1.15
+              // for the ISO 8601 date time string format.
+              if (getDay) {
+                // Manually compute the year, month, date, hours, minutes,
+                // seconds, and milliseconds if the `getUTC*` methods are
+                // buggy. Adapted from @Yaffle's `date-shim` project.
+                date = floor(value / 864e5);
+                for (year = floor(date / 365.2425) + 1970 - 1; getDay(year + 1, 0) <= date; year++);
+                for (month = floor((date - getDay(year, 0)) / 30.42); getDay(year, month + 1) <= date; month++);
+                date = 1 + date - getDay(year, month);
+                // The `time` value specifies the time within the day (see ES
+                // 5.1 section 15.9.1.2). The formula `(A % B + B) % B` is used
+                // to compute `A modulo B`, as the `%` operator does not
+                // correspond to the `modulo` operation for negative numbers.
+                time = (value % 864e5 + 864e5) % 864e5;
+                // The hours, minutes, seconds, and milliseconds are obtained by
+                // decomposing the time within the day. See section 15.9.1.10.
+                hours = floor(time / 36e5) % 24;
+                minutes = floor(time / 6e4) % 60;
+                seconds = floor(time / 1e3) % 60;
+                milliseconds = time % 1e3;
+              } else {
+                year = value.getUTCFullYear();
+                month = value.getUTCMonth();
+                date = value.getUTCDate();
+                hours = value.getUTCHours();
+                minutes = value.getUTCMinutes();
+                seconds = value.getUTCSeconds();
+                milliseconds = value.getUTCMilliseconds();
+              }
+              // Serialize extended years correctly.
+              value = (year <= 0 || year >= 1e4 ? (year < 0 ? "-" : "+") + toPaddedString(6, year < 0 ? -year : year) : toPaddedString(4, year)) +
+                "-" + toPaddedString(2, month + 1) + "-" + toPaddedString(2, date) +
+                // Months, dates, hours, minutes, and seconds should have two
+                // digits; milliseconds should have three.
+                "T" + toPaddedString(2, hours) + ":" + toPaddedString(2, minutes) + ":" + toPaddedString(2, seconds) +
+                // Milliseconds are optional in ES 5.0, but required in 5.1.
+                "." + toPaddedString(3, milliseconds) + "Z";
+            } else {
+              value = null;
+            }
+          } else if (typeof value.toJSON == "function" && ((className != numberClass && className != stringClass && className != arrayClass) || isProperty.call(value, "toJSON"))) {
+            // Prototype <= 1.6.1 adds non-standard `toJSON` methods to the
+            // `Number`, `String`, `Date`, and `Array` prototypes. JSON 3
+            // ignores all `toJSON` methods on these objects unless they are
+            // defined directly on an instance.
+            value = value.toJSON(property);
+          }
+        }
+        if (callback) {
+          // If a replacement function was provided, call it to obtain the value
+          // for serialization.
+          value = callback.call(object, property, value);
+        }
+        if (value === null) {
+          return "null";
+        }
+        className = getClass.call(value);
+        if (className == booleanClass) {
+          // Booleans are represented literally.
+          return "" + value;
+        } else if (className == numberClass) {
+          // JSON numbers must be finite. `Infinity` and `NaN` are serialized as
+          // `"null"`.
+          return value > -1 / 0 && value < 1 / 0 ? "" + value : "null";
+        } else if (className == stringClass) {
+          // Strings are double-quoted and escaped.
+          return quote("" + value);
+        }
+        // Recursively serialize objects and arrays.
+        if (typeof value == "object") {
+          // Check for cyclic structures. This is a linear search; performance
+          // is inversely proportional to the number of unique nested objects.
+          for (length = stack.length; length--;) {
+            if (stack[length] === value) {
+              // Cyclic structures cannot be serialized by `JSON.stringify`.
+              throw TypeError();
+            }
+          }
+          // Add the object to the stack of traversed objects.
+          stack.push(value);
+          results = [];
+          // Save the current indentation level and indent one additional level.
+          prefix = indentation;
+          indentation += whitespace;
+          if (className == arrayClass) {
+            // Recursively serialize array elements.
+            for (index = 0, length = value.length; index < length; index++) {
+              element = serialize(index, value, callback, properties, whitespace, indentation, stack);
+              results.push(element === undef ? "null" : element);
+            }
+            result = results.length ? (whitespace ? "[\n" + indentation + results.join(",\n" + indentation) + "\n" + prefix + "]" : ("[" + results.join(",") + "]")) : "[]";
+          } else {
+            // Recursively serialize object members. Members are selected from
+            // either a user-specified list of property names, or the object
+            // itself.
+            forEach(properties || value, function (property) {
+              var element = serialize(property, value, callback, properties, whitespace, indentation, stack);
+              if (element !== undef) {
+                // According to ES 5.1 section 15.12.3: "If `gap` {whitespace}
+                // is not the empty string, let `member` {quote(property) + ":"}
+                // be the concatenation of `member` and the `space` character."
+                // The "`space` character" refers to the literal space
+                // character, not the `space` {width} argument provided to
+                // `JSON.stringify`.
+                results.push(quote(property) + ":" + (whitespace ? " " : "") + element);
+              }
+            });
+            result = results.length ? (whitespace ? "{\n" + indentation + results.join(",\n" + indentation) + "\n" + prefix + "}" : ("{" + results.join(",") + "}")) : "{}";
+          }
+          // Remove the object from the traversed object stack.
+          stack.pop();
+          return result;
+        }
+      };
+
+      // Public: `JSON.stringify`. See ES 5.1 section 15.12.3.
+      JSON3.stringify = function (source, filter, width) {
+        var whitespace, callback, properties, className;
+        if (typeof filter == "function" || typeof filter == "object" && filter) {
+          if ((className = getClass.call(filter)) == functionClass) {
+            callback = filter;
+          } else if (className == arrayClass) {
+            // Convert the property names array into a makeshift set.
+            properties = {};
+            for (var index = 0, length = filter.length, value; index < length; value = filter[index++], ((className = getClass.call(value)), className == stringClass || className == numberClass) && (properties[value] = 1));
+          }
+        }
+        if (width) {
+          if ((className = getClass.call(width)) == numberClass) {
+            // Convert the `width` to an integer and create a string containing
+            // `width` number of space characters.
+            if ((width -= width % 1) > 0) {
+              for (whitespace = "", width > 10 && (width = 10); whitespace.length < width; whitespace += " ");
+            }
+          } else if (className == stringClass) {
+            whitespace = width.length <= 10 ? width : width.slice(0, 10);
+          }
+        }
+        // Opera <= 7.54u2 discards the values associated with empty string keys
+        // (`""`) only if they are used directly within an object member list
+        // (e.g., `!("" in { "": 1})`).
+        return serialize("", (value = {}, value[""] = source, value), callback, properties, whitespace, "", []);
+      };
+    }
+
+    // Public: Parses a JSON source string.
+    if (!has("json-parse")) {
+      var fromCharCode = String.fromCharCode;
+
+      // Internal: A map of escaped control characters and their unescaped
+      // equivalents.
+      var Unescapes = {
+        92: "\\",
+        34: '"',
+        47: "/",
+        98: "\b",
+        116: "\t",
+        110: "\n",
+        102: "\f",
+        114: "\r"
+      };
+
+      // Internal: Stores the parser state.
+      var Index, Source;
+
+      // Internal: Resets the parser state and throws a `SyntaxError`.
+      var abort = function() {
+        Index = Source = null;
+        throw SyntaxError();
+      };
+
+      // Internal: Returns the next token, or `"$"` if the parser has reached
+      // the end of the source string. A token may be a string, number, `null`
+      // literal, or Boolean literal.
+      var lex = function () {
+        var source = Source, length = source.length, value, begin, position, isSigned, charCode;
+        while (Index < length) {
+          charCode = source.charCodeAt(Index);
+          switch (charCode) {
+            case 9: case 10: case 13: case 32:
+              // Skip whitespace tokens, including tabs, carriage returns, line
+              // feeds, and space characters.
+              Index++;
+              break;
+            case 123: case 125: case 91: case 93: case 58: case 44:
+              // Parse a punctuator token (`{`, `}`, `[`, `]`, `:`, or `,`) at
+              // the current position.
+              value = charIndexBuggy ? source.charAt(Index) : source[Index];
+              Index++;
+              return value;
+            case 34:
+              // `"` delimits a JSON string; advance to the next character and
+              // begin parsing the string. String tokens are prefixed with the
+              // sentinel `@` character to distinguish them from punctuators and
+              // end-of-string tokens.
+              for (value = "@", Index++; Index < length;) {
+                charCode = source.charCodeAt(Index);
+                if (charCode < 32) {
+                  // Unescaped ASCII control characters (those with a code unit
+                  // less than the space character) are not permitted.
+                  abort();
+                } else if (charCode == 92) {
+                  // A reverse solidus (`\`) marks the beginning of an escaped
+                  // control character (including `"`, `\`, and `/`) or Unicode
+                  // escape sequence.
+                  charCode = source.charCodeAt(++Index);
+                  switch (charCode) {
+                    case 92: case 34: case 47: case 98: case 116: case 110: case 102: case 114:
+                      // Revive escaped control characters.
+                      value += Unescapes[charCode];
+                      Index++;
+                      break;
+                    case 117:
+                      // `\u` marks the beginning of a Unicode escape sequence.
+                      // Advance to the first character and validate the
+                      // four-digit code point.
+                      begin = ++Index;
+                      for (position = Index + 4; Index < position; Index++) {
+                        charCode = source.charCodeAt(Index);
+                        // A valid sequence comprises four hexdigits (case-
+                        // insensitive) that form a single hexadecimal value.
+                        if (!(charCode >= 48 && charCode <= 57 || charCode >= 97 && charCode <= 102 || charCode >= 65 && charCode <= 70)) {
+                          // Invalid Unicode escape sequence.
+                          abort();
+                        }
+                      }
+                      // Revive the escaped character.
+                      value += fromCharCode("0x" + source.slice(begin, Index));
+                      break;
+                    default:
+                      // Invalid escape sequence.
+                      abort();
+                  }
+                } else {
+                  if (charCode == 34) {
+                    // An unescaped double-quote character marks the end of the
+                    // string.
+                    break;
+                  }
+                  charCode = source.charCodeAt(Index);
+                  begin = Index;
+                  // Optimize for the common case where a string is valid.
+                  while (charCode >= 32 && charCode != 92 && charCode != 34) {
+                    charCode = source.charCodeAt(++Index);
+                  }
+                  // Append the string as-is.
+                  value += source.slice(begin, Index);
+                }
+              }
+              if (source.charCodeAt(Index) == 34) {
+                // Advance to the next character and return the revived string.
+                Index++;
+                return value;
+              }
+              // Unterminated string.
+              abort();
+            default:
+              // Parse numbers and literals.
+              begin = Index;
+              // Advance past the negative sign, if one is specified.
+              if (charCode == 45) {
+                isSigned = true;
+                charCode = source.charCodeAt(++Index);
+              }
+              // Parse an integer or floating-point value.
+              if (charCode >= 48 && charCode <= 57) {
+                // Leading zeroes are interpreted as octal literals.
+                if (charCode == 48 && ((charCode = source.charCodeAt(Index + 1)), charCode >= 48 && charCode <= 57)) {
+                  // Illegal octal literal.
+                  abort();
+                }
+                isSigned = false;
+                // Parse the integer component.
+                for (; Index < length && ((charCode = source.charCodeAt(Index)), charCode >= 48 && charCode <= 57); Index++);
+                // Floats cannot contain a leading decimal point; however, this
+                // case is already accounted for by the parser.
+                if (source.charCodeAt(Index) == 46) {
+                  position = ++Index;
+                  // Parse the decimal component.
+                  for (; position < length && ((charCode = source.charCodeAt(position)), charCode >= 48 && charCode <= 57); position++);
+                  if (position == Index) {
+                    // Illegal trailing decimal.
+                    abort();
+                  }
+                  Index = position;
+                }
+                // Parse exponents. The `e` denoting the exponent is
+                // case-insensitive.
+                charCode = source.charCodeAt(Index);
+                if (charCode == 101 || charCode == 69) {
+                  charCode = source.charCodeAt(++Index);
+                  // Skip past the sign following the exponent, if one is
+                  // specified.
+                  if (charCode == 43 || charCode == 45) {
+                    Index++;
+                  }
+                  // Parse the exponential component.
+                  for (position = Index; position < length && ((charCode = source.charCodeAt(position)), charCode >= 48 && charCode <= 57); position++);
+                  if (position == Index) {
+                    // Illegal empty exponent.
+                    abort();
+                  }
+                  Index = position;
+                }
+                // Coerce the parsed value to a JavaScript number.
+                return +source.slice(begin, Index);
+              }
+              // A negative sign may only precede numbers.
+              if (isSigned) {
+                abort();
+              }
+              // `true`, `false`, and `null` literals.
+              if (source.slice(Index, Index + 4) == "true") {
+                Index += 4;
+                return true;
+              } else if (source.slice(Index, Index + 5) == "false") {
+                Index += 5;
+                return false;
+              } else if (source.slice(Index, Index + 4) == "null") {
+                Index += 4;
+                return null;
+              }
+              // Unrecognized token.
+              abort();
+          }
+        }
+        // Return the sentinel `$` character if the parser has reached the end
+        // of the source string.
+        return "$";
+      };
+
+      // Internal: Parses a JSON `value` token.
+      var get = function (value) {
+        var results, hasMembers;
+        if (value == "$") {
+          // Unexpected end of input.
+          abort();
+        }
+        if (typeof value == "string") {
+          if ((charIndexBuggy ? value.charAt(0) : value[0]) == "@") {
+            // Remove the sentinel `@` character.
+            return value.slice(1);
+          }
+          // Parse object and array literals.
+          if (value == "[") {
+            // Parses a JSON array, returning a new JavaScript array.
+            results = [];
+            for (;; hasMembers || (hasMembers = true)) {
+              value = lex();
+              // A closing square bracket marks the end of the array literal.
+              if (value == "]") {
+                break;
+              }
+              // If the array literal contains elements, the current token
+              // should be a comma separating the previous element from the
+              // next.
+              if (hasMembers) {
+                if (value == ",") {
+                  value = lex();
+                  if (value == "]") {
+                    // Unexpected trailing `,` in array literal.
+                    abort();
+                  }
+                } else {
+                  // A `,` must separate each array element.
+                  abort();
+                }
+              }
+              // Elisions and leading commas are not permitted.
+              if (value == ",") {
+                abort();
+              }
+              results.push(get(value));
+            }
+            return results;
+          } else if (value == "{") {
+            // Parses a JSON object, returning a new JavaScript object.
+            results = {};
+            for (;; hasMembers || (hasMembers = true)) {
+              value = lex();
+              // A closing curly brace marks the end of the object literal.
+              if (value == "}") {
+                break;
+              }
+              // If the object literal contains members, the current token
+              // should be a comma separator.
+              if (hasMembers) {
+                if (value == ",") {
+                  value = lex();
+                  if (value == "}") {
+                    // Unexpected trailing `,` in object literal.
+                    abort();
+                  }
+                } else {
+                  // A `,` must separate each object member.
+                  abort();
+                }
+              }
+              // Leading commas are not permitted, object property names must be
+              // double-quoted strings, and a `:` must separate each property
+              // name and value.
+              if (value == "," || typeof value != "string" || (charIndexBuggy ? value.charAt(0) : value[0]) != "@" || lex() != ":") {
+                abort();
+              }
+              results[value.slice(1)] = get(lex());
+            }
+            return results;
+          }
+          // Unexpected token encountered.
+          abort();
+        }
+        return value;
+      };
+
+      // Internal: Updates a traversed object member.
+      var update = function(source, property, callback) {
+        var element = walk(source, property, callback);
+        if (element === undef) {
+          delete source[property];
+        } else {
+          source[property] = element;
+        }
+      };
+
+      // Internal: Recursively traverses a parsed JSON object, invoking the
+      // `callback` function for each value. This is an implementation of the
+      // `Walk(holder, name)` operation defined in ES 5.1 section 15.12.2.
+      var walk = function (source, property, callback) {
+        var value = source[property], length;
+        if (typeof value == "object" && value) {
+          // `forEach` can't be used to traverse an array in Opera <= 8.54
+          // because its `Object#hasOwnProperty` implementation returns `false`
+          // for array indices (e.g., `![1, 2, 3].hasOwnProperty("0")`).
+          if (getClass.call(value) == arrayClass) {
+            for (length = value.length; length--;) {
+              update(value, length, callback);
+            }
+          } else {
+            forEach(value, function (property) {
+              update(value, property, callback);
+            });
+          }
+        }
+        return callback.call(source, property, value);
+      };
+
+      // Public: `JSON.parse`. See ES 5.1 section 15.12.2.
+      JSON3.parse = function (source, callback) {
+        var result, value;
+        Index = 0;
+        Source = "" + source;
+        result = get(lex());
+        // If a JSON string contains multiple tokens, it is invalid.
+        if (lex() != "$") {
+          abort();
+        }
+        // Reset the parser state.
+        Index = Source = null;
+        return callback && getClass.call(callback) == functionClass ? walk((value = {}, value[""] = result, value), "", callback) : result;
+      };
+    }
+  }
+
+  // Export for asynchronous module loaders.
+  if (isLoader) {
+    define(function () {
+      return JSON3;
+    });
+  }
+}(this));
+
+},{}],48:[function(_dereq_,module,exports){
+module.exports = toArray
+
+function toArray(list, index) {
+    var array = []
+
+    index = index || 0
+
+    for (var i = index || 0; i < list.length; i++) {
+        array[i - index] = list[i]
+    }
+
+    return array
+}
+
+},{}]},{},[1])
+(1)
+});

vote-apps/result-app/views/stylesheets/style.css

@@ -0,0 +1,111 @@
+@import url(//fonts.googleapis.com/css?family=Open+Sans:400,700,600);
+
+*{
+  box-sizing:border-box;
+}
+html,body{
+  margin:0;
+  padding:0;
+  height:100%;
+  font-family: 'Open Sans';
+}
+body{
+  opacity:0;
+  transition: all 1s linear;
+}
+
+.divider{
+  height: 150px;
+  width:2px;
+  background-color: #C0C9CE;
+  position: relative;
+  top: 50%;
+  float: left;
+  transform: translateY(-50%);
+}
+
+#background-stats-1{
+  background-color: #2196f3;
+}
+
+#background-stats-2{
+  background-color: #00cbca;
+}
+
+#content-container{
+  z-index:2;
+  position:relative;
+  margin:0 auto;
+  display:table;
+  padding:10px;
+  max-width:940px;
+  height:100%;
+}
+#content-container-center{
+  display:table-cell;
+  text-align:center;
+  vertical-align:middle;
+}
+#result{
+  position: absolute;
+  bottom: 40px;
+  right: 20px;
+  color: #fff;
+  opacity: 0.5;
+  font-size: 45px;
+  font-weight: 600;
+}
+#choice{
+  transition: all 300ms linear;
+  line-height:1.3em;
+  background:#fff;
+  box-shadow: 10px 0 0 #fff, -10px 0 0 #fff;
+  vertical-align:middle;
+  font-size:40px;
+  font-weight: 600;
+  width: 450px;
+  height: 200px;
+}
+#choice a{
+  text-decoration:none;
+}
+#choice a:hover, #choice a:focus{
+  outline:0;
+  text-decoration:underline;
+}
+
+#choice .choice{
+  width: 49%;
+  position: relative;
+  top: 50%;
+  transform: translateY(-50%);
+  text-align: left;
+  padding-left: 50px;
+}
+
+#choice .choice .label{
+  text-transform: uppercase;
+}
+
+#choice .choice.dogs{
+  color: #00cbca;
+  float: right;
+}
+
+#choice .choice.cats{
+  color: #2196f3;
+  float: left;
+}
+#background-stats{
+  z-index:1;
+  height:100%;
+  width:100%;
+  position:absolute;
+}
+#background-stats div{
+  transition: width 400ms ease-in-out;
+  display:inline-block;
+  margin-bottom:-4px;
+  width:50%;
+  height:100%;
+}

vote-apps/voting-app/Dockerfile

@@ -0,0 +1,18 @@
+# Using official python runtime base image
+FROM python:2.7
+
+# Set the application directory
+WORKDIR /app
+
+# Install our requirements.txt
+ADD requirements.txt /app/requirements.txt
+RUN pip install -r requirements.txt
+
+# Copy our code from the current folder to /app inside the container
+ADD . /app
+
+# Make port 5000 available for links and/or publish
+EXPOSE 80 
+
+# Define our command to be run when launching the container
+CMD ["python", "app.py"]

vote-apps/voting-app/app.py

@@ -0,0 +1,44 @@
+from flask import Flask
+from flask import render_template
+from flask import request
+from flask import make_response
+from utils import connect_to_redis
+import os
+import socket
+import random
+import json
+
+option_a = os.getenv('OPTION_A', "Cats")
+option_b = os.getenv('OPTION_B', "Dogs")
+hostname = socket.gethostname()
+
+redis = connect_to_redis("voteapps_redis_1")
+app = Flask(__name__)
+
+
+@app.route("/", methods=['POST','GET'])
+def hello():
+    voter_id = request.cookies.get('voter_id')
+    if not voter_id:
+        voter_id = hex(random.getrandbits(64))[2:-1]
+
+    vote = None
+
+    if request.method == 'POST':
+        vote = request.form['vote']
+        data = json.dumps({'voter_id': voter_id, 'vote': vote})
+        redis.rpush('votes', data)
+
+    resp = make_response(render_template(
+        'index.html',
+        option_a=option_a,
+        option_b=option_b,
+        hostname=hostname,
+        vote=vote,
+    ))
+    resp.set_cookie('voter_id', voter_id)
+    return resp
+
+
+if __name__ == "__main__":
+	app.run(host='0.0.0.0', port=80, debug=True)

vote-apps/voting-app/requirements.txt

@@ -0,0 +1,2 @@
+Flask
+Redis

vote-apps/voting-app/static/stylesheets/style.css

@@ -0,0 +1,129 @@
+@import url(//fonts.googleapis.com/css?family=Open+Sans:400,700,600);
+
+*{
+  box-sizing:border-box;
+}
+html,body{
+  margin: 0;
+  padding: 0;
+  background-color: #F7F8F9;
+  height: 100vh;
+  font-family: 'Open Sans';
+}
+
+button{
+  border-radius: 0;
+  width: 100%;
+  height: 50%;
+}
+
+button[type="submit"] {
+  -webkit-appearance:none; -webkit-border-radius:0;
+}
+
+button i{
+  float: right;
+  padding-right: 30px;
+  margin-top: 3px;
+}
+
+button.a{
+  background-color: #1aaaf8;
+}
+
+button.b{
+  background-color: #00cbca;
+}
+
+#tip{
+  text-align: left;
+  color: #c0c9ce;
+  font-size: 14px;
+}
+
+#hostname{
+  position: absolute;
+  bottom: 100px;
+  right: 0;
+  left: 0;
+  color: #8f9ea8;
+  font-size: 14px;
+}
+
+#content-container{
+  z-index: 2;
+  position: relative;
+  margin: 0 auto;
+  display: table;
+  padding: 10px;
+  max-width: 940px;
+  height: 100%;
+}
+#content-container-center{
+  display: table-cell;
+  text-align: center;
+}
+
+#content-container-center h3{
+  color: #254356;
+}
+
+#choice{
+  transition: all 300ms linear;
+  line-height: 1.3em;
+  display: inline;
+  vertical-align: middle;
+  font-size: 3em;
+}
+#choice a{
+  text-decoration:none;
+}
+#choice a:hover, #choice a:focus{
+  outline:0;
+  text-decoration:underline;
+}
+
+#choice button{
+  display: block;
+  height: 80px;
+  width: 330px;
+  border: none;
+  color: white;
+  text-transform: uppercase;
+  font-size:18px;
+  font-weight: 700;
+  margin-top: 10px;
+  margin-bottom: 10px;
+  text-align: left;
+  padding-left: 50px;
+}
+
+#choice button.a:hover{
+  background-color: #1488c6;
+}
+
+#choice button.b:hover{
+  background-color: #00a2a1;
+}
+
+#choice button.a:focus{
+  background-color: #1488c6;
+}
+
+#choice button.b:focus{
+  background-color: #00a2a1;
+}
+
+#background-stats{
+  z-index:1;
+  height:100%;
+  width:100%;
+  position:absolute;
+}
+#background-stats div{
+  transition: width 400ms ease-in-out;
+  display:inline-block;
+  margin-bottom:-4px;
+  width:50%;
+  height:100%;
+}

vote-apps/voting-app/templates/index.html

@@ -0,0 +1,49 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <title>{{option_a}} vs {{option_b}}!</title>
+    <base href="/index.html">
+    <meta name = "viewport" content = "width=device-width, initial-scale = 1.0">
+    <meta name="keywords" content="docker-compose, docker, stack">
+    <meta name="author" content="Tutum dev team">
+    <link rel='stylesheet' href="{{ url_for('static',filename='stylesheets/style.css') }}" />
+    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.4.0/css/font-awesome.min.css">
+  </head>
+  <body>
+    <div id="content-container">
+      <div id="content-container-center">
+        <h3>{{option_a}} vs {{option_b}}!</h3>
+        <form id="choice" name='form' method="POST" action="/">
+          <button id="a" type="submit" name="vote" class="a" value="a">{{option_a}}</button>
+          <button id="b" type="submit" name="vote" class="b" value="b">{{option_b}}</button>
+        </form>
+        <div id="tip">
+          (Tip: you can change your vote)
+        </div>
+        <div id="hostname">
+          Vote processed by {{hostname}}
+        </div>
+      </div>
+    </div>
+    <script src="http://code.jquery.com/jquery-latest.min.js" type="text/javascript"></script>
+    <script src="//cdnjs.cloudflare.com/ajax/libs/jquery-cookie/1.4.1/jquery.cookie.js"></script>
+
+    {% if vote %}
+    <script>
+      var vote = "{{vote}}";
+
+      if(vote == "a"){
+        $(".a").prop('disabled', true);
+        $(".a").html('{{option_a}} <i class="fa fa-check-circle"></i>');
+        $(".b").css('opacity','0.5');
+      }
+      if(vote == "b"){
+        $(".b").prop('disabled', true);
+        $(".b").html('{{option_b}} <i class="fa fa-check-circle"></i>');
+        $(".a").css('opacity','0.5');
+      }
+    </script>
+    {% endif %}
+  </body>
+</html>

vote-apps/voting-app/utils/__init__.py

@@ -0,0 +1,17 @@
+import time
+from redis import Redis, ConnectionError
+
+
+def connect_to_redis(host):
+    time.sleep(2)
+    print "Connecting to redis"
+
+    while True:
+        try:
+            redis = Redis(host=host, db=0)
+            redis.ping()
+            print "Connected to redis"
+            return redis
+        except ConnectionError:
+            print "Failed to connect to redis - retrying"
+            time.sleep(1)

vote-apps/worker/Dockerfile

@@ -0,0 +1,15 @@
+FROM java:7
+
+RUN apt-get update -qq && apt-get install -y maven && apt-get clean
+
+WORKDIR /code
+
+ADD pom.xml /code/pom.xml
+RUN ["mvn", "dependency:resolve"]
+RUN ["mvn", "verify"]
+
+# Adding source, compile and package into a fat jar
+ADD src /code/src
+RUN ["mvn", "package"]
+
+CMD ["/usr/lib/jvm/java-7-openjdk-amd64/bin/java", "-jar", "target/worker-jar-with-dependencies.jar"]

vote-apps/worker/pom.xml

@@ -0,0 +1,84 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <groupId>worker</groupId>
+  <artifactId>worker</artifactId>
+  <version>1.0-SNAPSHOT</version>
+
+
+  <dependencies>
+    <dependency>
+      <groupId>org.json</groupId>
+      <artifactId>json</artifactId>
+      <version>20140107</version>
+    </dependency>
+
+    <dependency>
+        <groupId>redis.clients</groupId>
+        <artifactId>jedis</artifactId>
+        <version>2.7.2</version>
+        <type>jar</type>
+        <scope>compile</scope>
+    </dependency>
+
+    <dependency>
+        <groupId>org.postgresql</groupId>
+        <artifactId>postgresql</artifactId>
+        <version>9.4-1200-jdbc41</version>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-jar-plugin</artifactId>
+        <version>2.4</version>
+        <configuration>
+          <finalName>worker</finalName>
+          <archive>
+            <manifest>
+              <addClasspath>true</addClasspath>
+              <mainClass>worker.Worker</mainClass>
+              <classpathPrefix>dependency-jars/</classpathPrefix>
+            </manifest>
+          </archive>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <version>3.1</version>
+        <configuration>
+          <source>1.7</source>
+          <target>1.7</target>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-assembly-plugin</artifactId>
+        <executions>
+          <execution>
+            <goals>
+              <goal>attached</goal>
+            </goals>
+            <phase>package</phase>
+            <configuration>
+              <finalName>worker</finalName>
+              <descriptorRefs>
+                <descriptorRef>jar-with-dependencies</descriptorRef>
+              </descriptorRefs>
+              <archive>
+                <manifest>
+                  <mainClass>worker.Worker</mainClass>
+                </manifest>
+              </archive>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
+</project>

vote-apps/worker/src/main/java/worker/Worker.java

@@ -0,0 +1,101 @@
+package worker;
+
+import redis.clients.jedis.Jedis;
+import redis.clients.jedis.exceptions.JedisConnectionException;
+import java.sql.*;
+import org.json.JSONObject;
+
+class Worker {
+  public static void main(String[] args) {
+    try {
+      Jedis redis = connectToRedis("voteapps_redis_1");
+      Connection dbConn = connectToDB("voteapps_db_1");
+
+      System.err.println("Watching vote queue");
+
+      while (true) {
+        String voteJSON = redis.blpop(0, "votes").get(1);
+        JSONObject voteData = new JSONObject(voteJSON);
+        String voterID = voteData.getString("voter_id");
+        String vote = voteData.getString("vote");
+
+        System.err.printf("Processing vote for '%s' by '%s'\n", vote, voterID);
+        updateVote(dbConn, voterID, vote);
+      }
+    } catch (SQLException e) {
+      e.printStackTrace();
+      System.exit(1);
+    }
+  }
+
+  static void updateVote(Connection dbConn, String voterID, String vote) throws SQLException {
+    PreparedStatement insert = dbConn.prepareStatement(
+      "INSERT INTO votes (id, vote) VALUES (?, ?)");
+    insert.setString(1, voterID);
+    insert.setString(2, vote);
+
+    try {
+      insert.executeUpdate();
+    } catch (SQLException e) {
+      PreparedStatement update = dbConn.prepareStatement(
+        "UPDATE votes SET vote = ? WHERE id = ?");
+      update.setString(1, vote);
+      update.setString(2, voterID);
+      update.executeUpdate();
+    }
+  }
+
+  static Jedis connectToRedis(String host) {
+    Jedis conn = new Jedis(host);
+
+    while (true) {
+      try {
+        conn.keys("*");
+        break;
+      } catch (JedisConnectionException e) {
+        System.err.println("Failed to connect to redis - retrying");
+        sleep(1000);
+      }
+    }
+
+    System.err.println("Connected to redis");
+    return conn;
+  }
+
+  static Connection connectToDB(String host) throws SQLException {
+    Connection conn = null;
+
+    try {
+
+      Class.forName("org.postgresql.Driver");
+      String url = "jdbc:postgresql://" + host + "/postgres";
+
+      while (conn == null) {
+        try {
+          conn = DriverManager.getConnection(url, "postgres", "");
+        } catch (SQLException e) {
+          System.err.println("Failed to connect to db - retrying");
+          sleep(1000);
+        }
+      }
+
+      PreparedStatement st = conn.prepareStatement(
+        "CREATE TABLE IF NOT EXISTS votes (id VARCHAR(255) NOT NULL UNIQUE, vote VARCHAR(255) NOT NULL)");
+      st.executeUpdate();
+
+    } catch (ClassNotFoundException e) {
+      e.printStackTrace();
+      System.exit(1);
+    }
+
+    return conn;
+  }
+
+  static void sleep(long duration) {
+    try {
+      Thread.sleep(duration);
+    } catch (InterruptedException e) {
+      System.exit(1);
+    }
+  }
+}