if (!CC_JSB && !cc.sys.isNative) {
    (function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.io = f()}})(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);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.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.exports = _dereq_('./socket');

    /**
     * Exports parser
     *
     * @api public
     *
     */
    module.exports.parser = _dereq_('engine.io-parser');

    },{"./socket":3,"engine.io-parser":19}],3:[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.hostname = uri.host;
        opts.secure = uri.protocol == 'https' || uri.protocol == 'wss';
        opts.port = uri.port;
        if (uri.query) opts.query = uri.query;
      } else if (opts.host) {
        opts.hostname = parseuri(opts.host).host;
      }

      this.secure = null != opts.secure ? opts.secure :
        (global.location && 'https:' == location.protocol);

      if (opts.hostname && !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.policyPort = opts.policyPort || 843;
      this.rememberUpgrade = opts.rememberUpgrade || false;
      this.binaryType = null;
      this.onlyBinaryUpgrades = opts.onlyBinaryUpgrades;
      this.perMessageDeflate = false !== opts.perMessageDeflate ? (opts.perMessageDeflate || {}) : false;

      if (true === this.perMessageDeflate) this.perMessageDeflate = {};
      if (this.perMessageDeflate && null == this.perMessageDeflate.threshold) {
        this.perMessageDeflate.threshold = 1024;
      }

      // 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 === undefined ? true : opts.rejectUnauthorized;

      // other options for Node.js client
      var freeGlobal = typeof global == 'object' && global;
      if (freeGlobal.global === freeGlobal) {
        if (opts.extraHeaders && Object.keys(opts.extraHeaders).length > 0) {
          this.extraHeaders = opts.extraHeaders;
        }
      }

      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,
        perMessageDeflate: this.perMessageDeflate,
        extraHeaders: this.extraHeaders
      });

      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)
      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();
            this.emit('pong');
            break;

          case 'error':
            var err = new Error('server error');
            err.code = packet.data;
            this.onError(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 private
    */

    Socket.prototype.ping = function () {
      var self = this;
      this.sendPacket('ping', function(){
        self.emit('ping');
      });
    };

    /**
     * Called on `drain` event
     *
     * @api private
     */

    Socket.prototype.onDrain = function() {
      this.writeBuffer.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 (0 === this.writeBuffer.length) {
        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.
     * @param {Object} options.
     * @return {Socket} for chaining.
     * @api public
     */

    Socket.prototype.write =
    Socket.prototype.send = function (msg, options, fn) {
      this.sendPacket('message', msg, options, fn);
      return this;
    };

    /**
     * Sends a packet.
     *
     * @param {String} packet type.
     * @param {String} data.
     * @param {Object} options.
     * @param {Function} callback function.
     * @api private
     */

    Socket.prototype.sendPacket = function (type, data, options, fn) {
      if('function' == typeof data) {
        fn = data;
        data = undefined;
      }

      if ('function' == typeof options) {
        fn = options;
        options = null;
      }

      if ('closing' == this.readyState || 'closed' == this.readyState) {
        return;
      }

      options = options || {};
      options.compress = false !== options.compress;

      var packet = {
        type: type,
        data: data,
        options: options
      };
      this.emit('packetCreate', packet);
      this.writeBuffer.push(packet);
      if (fn) this.once('flush', 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;

        if (this.writeBuffer.length) {
          this.once('drain', function() {
            if (this.upgrading) {
              waitForUpgrade();
            } else {
              close();
            }
          });
        } else if (this.upgrading) {
          waitForUpgrade();
        } else {
          close();
        }
      }

      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);
      }

      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);

        // 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);

        // clean buffers after, so users can still
        // grab the buffers on `close` event
        self.writeBuffer = [];
        self.prevBufferLen = 0;
      }
    };

    /**
     * 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 : typeof global !== "undefined" ? global : {})
    },{"./transport":4,"./transports":5,"component-emitter":15,"debug":17,"engine.io-parser":19,"indexof":23,"parsejson":26,"parseqs":27,"parseuri":28}],4:[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;

      // other options for Node.js client
      this.extraHeaders = opts.extraHeaders;
    }

    /**
     * Mix in `Emitter`.
     */

    Emitter(Transport.prototype);

    /**
     * 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":15,"engine.io-parser":19}],5:[function(_dereq_,module,exports){
    (function (global){
    /**
     * Module dependencies
     */

    var XMLHttpRequest = _dereq_('xmlhttprequest-ssl');
    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 : typeof global !== "undefined" ? global : {})
    },{"./polling-jsonp":6,"./polling-xhr":7,"./websocket":9,"xmlhttprequest-ssl":10}],6:[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];
      if (insertAt) {
        insertAt.parentNode.insertBefore(script, insertAt);
      }
      else {
        (document.head || document.body).appendChild(script);
      }
      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 : typeof global !== "undefined" ? global : {})
    },{"./polling":8,"component-inherit":16}],7:[function(_dereq_,module,exports){
    (function (global){
    /**
     * Module requirements.
     */

    var XMLHttpRequest = _dereq_('xmlhttprequest-ssl');
    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;
      } else {
        this.extraHeaders = opts.extraHeaders;
      }
    }

    /**
     * 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;

      // other options for Node.js client
      opts.extraHeaders = this.extraHeaders;

      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.s