Imported new Atmosphere JS from Atmosphere 1.0.x (#11642)

* Atmosphere change 2a6b6ce0f5fc1185df6d293d1c919840fabbadf9

Change-Id: I5460cc75045d78930c2a5e0ac0a0199cb1bea100

1 files changed, 204 insertions, 145 deletions

diff --git a/WebContent/VAADIN/jquery.atmosphere.js b/WebContent/VAADIN/jquery.atmosphere.js
index e9def6ae95..bea5d5f230 100644
--- a/WebContent/VAADIN/jquery.atmosphere.js
+++ b/WebContent/VAADIN/jquery.atmosphere.js
@@ -49,7 +49,7 @@ jQuery.atmosphere = function() {
     };
 
     return {
-        version : "1.0.12",
+        version : "1.0.13",
         requests : [],
         callbacks : [],
 
@@ -138,13 +138,16 @@ jQuery.atmosphere = function() {
              */
             var _response = {
                 status: 200,
+                reasonPhrase : "OK",
                 responseBody : '',
+                messages : [],
                 headers : [],
                 state : "messageReceived",
                 transport : "polling",
                 error: null,
                 request : null,
                 partialMessage : "",
+                errorHandled: false,
                 id : 0
             };
 
@@ -682,19 +685,21 @@ jQuery.atmosphere = function() {
                     _close();
                 };
 
-                _response.request = request;
-                var prevState = _response.state;
-                _response.state = state;
-                _response.status = 200;
-                var prevTransport = _response.transport;
-                _response.transport = transport;
+                if (_response.error == null) {
+                    _response.request = request;
+                    var prevState = _response.state;
+                    _response.state = state;
+                    _response.status = 200;
+                    var prevTransport = _response.transport;
+                    _response.transport = transport;
 
-                var _body = _response.responseBody;
-                _invokeCallback();
-                _response.responseBody = _body;
+                    var _body = _response.responseBody;
+                    _invokeCallback();
+                    _response.responseBody = _body;
 
-                _response.state = prevState;
-                _response.transport = prevTransport;
+                    _response.state = prevState;
+                    _response.transport = prevTransport;
+                }
             }
 
             /**
@@ -729,41 +734,43 @@ jQuery.atmosphere = function() {
                     type : rq.method,
                     dataType: "jsonp",
                     error : function(jqXHR, textStatus, errorThrown) {
+                        _response.error = true;
                         if (jqXHR.status < 300) {
                             _reconnect(_jqxhr, rq);
                         } else {
-                            _prepareCallback(textStatus, "error", jqXHR.status, rq.transport);
+                            _onError(jqXHR.status, errorThrown);
                         }
                     },
                     jsonp : "jsonpTransport",
                     success: function(json) {
+                        if (rq.reconnect) {
+                            if (rq.maxRequest == -1 || rq.requestCount++ < rq.maxRequest) {
+                                _readHeaders(_jqxhr, rq);
 
-                        if (rq.reconnect && (rq.maxRequest == -1 || rq.requestCount++ < rq.maxRequest)) {
-                            _readHeaders(_jqxhr, rq);
-
-                            if (!rq.executeCallbackBeforeReconnect) {
-                                _reconnect(_jqxhr, rq);
-                            }
+                                if (!rq.executeCallbackBeforeReconnect) {
+                                    _reconnect(_jqxhr, rq);
+                                }
 
-                            var msg = json.message;
-                            if (msg != null && typeof msg != 'string') {
-                                try {
-                                    msg = jQuery.stringifyJSON(msg);
-                                } catch (err) {
-                                    // The message was partial
+                                var msg = json.message;
+                                if (msg != null && typeof msg != 'string') {
+                                    try {
+                                        msg = jQuery.stringifyJSON(msg);
+                                    } catch (err) {
+                                        // The message was partial
+                                    }
                                 }
-                            }
 
-                            if (_handleProtocol(rq, msg)) {
-                                _prepareCallback(msg, "messageReceived", 200, rq.transport);
-                            }
+                                if (_handleProtocol(rq, msg)) {
+                                    _prepareCallback(msg, "messageReceived", 200, rq.transport);
+                                }
 
-                            if (rq.executeCallbackBeforeReconnect) {
-                                _reconnect(_jqxhr, rq);
+                                if (rq.executeCallbackBeforeReconnect) {
+                                    _reconnect(_jqxhr, rq);
+                                }
+                            } else {
+                                jQuery.atmosphere.log(_request.logLevel, ["JSONP reconnect maximum try reached " + _request.requestCount]);
+                                _onError(0, "maxRequest reached");
                             }
-                        } else {
-                            jQuery.atmosphere.log(_request.logLevel, ["JSONP reconnect maximum try reached " + _request.requestCount]);
-                            _onError();
                         }
                     },
                     data : rq.data,
@@ -802,29 +809,32 @@ jQuery.atmosphere = function() {
                     url : url,
                     type : rq.method,
                     error : function(jqXHR, textStatus, errorThrown) {
+                        _response.error = true;
                         if (jqXHR.status < 300) {
                             _reconnect(_jqxhr, rq);
                         } else {
-                            _prepareCallback(textStatus, "error", jqXHR.status, rq.transport);
+                            _onError(jqXHR.status, errorThrown);
                         }
                     },
                     success: function(data, textStatus, jqXHR) {
 
-                        if (rq.reconnect && (rq.maxRequest == -1 || rq.requestCount++ < rq.maxRequest)) {
-                            if (!rq.executeCallbackBeforeReconnect) {
-                                _reconnect(_jqxhr, rq);
-                            }
+                        if (rq.reconnect) {
+                            if (rq.maxRequest == -1 || rq.requestCount++ < rq.maxRequest) {
+                                if (!rq.executeCallbackBeforeReconnect) {
+                                    _reconnect(_jqxhr, rq);
+                                }
 
-                            if (_handleProtocol(rq, data)) {
-                                _prepareCallback(data, "messageReceived", 200, rq.transport);
-                            }
+                                if (_handleProtocol(rq, data)) {
+                                    _prepareCallback(data, "messageReceived", 200, rq.transport);
+                                }
 
-                            if (rq.executeCallbackBeforeReconnect) {
-                                _reconnect(_jqxhr, rq);
+                                if (rq.executeCallbackBeforeReconnect) {
+                                    _reconnect(_jqxhr, rq);
+                                }
+                            } else {
+                                jQuery.atmosphere.log(_request.logLevel, ["AJAX reconnect maximum try reached " + _request.requestCount]);
+                                _onError(0, "maxRequest reached");
                             }
-                        } else {
-                            jQuery.atmosphere.log(_request.logLevel, ["AJAX reconnect maximum try reached " + _request.requestCount]);
-                            _onError();
                         }
                     },
                     beforeSend : function(jqXHR) {
@@ -912,7 +922,14 @@ jQuery.atmosphere = function() {
                     }
                     return;
                 }
-                _sse = new EventSource(location, {withCredentials: _request.withCredentials});
+
+                try {
+                     _sse = new EventSource(location, {withCredentials: _request.withCredentials});
+                } catch (e) {
+                    _onError(0, e);
+                    _reconnectWithFallbackTransport("SSE failed. Downgrading to fallback transport and resending");
+                    return;
+                }
 
                 if (_request.connectTimeout > 0) {
                     _request.id = setTimeout(function() {
@@ -949,7 +966,7 @@ jQuery.atmosphere = function() {
                     _response.state = 'messageReceived';
                     _response.status = 200;
 
-                    var message = message.data;
+                    message = message.data;
                     var skipCallbackInvocation = _trackMessageSize(message, _request, _response);
 
                     if (jQuery.trim(message).length == 0) {
@@ -959,6 +976,7 @@ jQuery.atmosphere = function() {
                     if (!skipCallbackInvocation) {
                         _invokeCallback();
                         _response.responseBody = '';
+                        _response.messages = [];
                     }
                 };
 
@@ -967,6 +985,7 @@ jQuery.atmosphere = function() {
                     clearTimeout(_request.id);
                     _response.state = 'closed';
                     _response.responseBody = "";
+                    _response.messages = [];
                     _response.status = !sseOpened ? 501 : 200;
                     _invokeCallback();
                     _clearState();
@@ -981,9 +1000,10 @@ jQuery.atmosphere = function() {
                                 _executeSSE(true);
                             }, _request.reconnectInterval);
                             _response.responseBody = "";
+                            _response.messages = [];
                         } else {
                             jQuery.atmosphere.log(_request.logLevel, ["SSE reconnect maximum try reached " + _requestCount]);
-                            _onError();
+                            _onError(0, "maxReconnectOnClose reached");
                         }
                     }
                 };
@@ -1025,7 +1045,6 @@ jQuery.atmosphere = function() {
                 }
 
                 _websocket = _getWebSocket(location);
-
                 if (_request.connectTimeout > 0) {
                     _request.id = setTimeout(function() {
                         if (!webSocketOpened) {
@@ -1062,6 +1081,7 @@ jQuery.atmosphere = function() {
                     }
 
                     webSocketOpened = true;
+                    _websocket.webSocketOpened = webSocketOpened;
 
                     if (_request.method == 'POST') {
                         _response.state = "messageReceived";
@@ -1089,6 +1109,7 @@ jQuery.atmosphere = function() {
                     if (!skipCallbackInvocation) {
                         _invokeCallback();
                         _response.responseBody = '';
+                        _response.messages = [];
                     }
                 };
 
@@ -1098,6 +1119,7 @@ jQuery.atmosphere = function() {
 
                 _websocket.onclose = function(message) {
                     if (closed) return
+                    clearTimeout(_request.id);
 
                     var reason = message.reason;
                     if (reason === "") {
@@ -1135,9 +1157,9 @@ jQuery.atmosphere = function() {
 
                     _response.state = 'closed';
                     _response.responseBody = "";
+                    _response.messages = [];
                     _response.status = !webSocketOpened ? 501 : 200;
                     _invokeCallback();
-                    clearTimeout(_request.id);
 
                     closed = true;
 
@@ -1151,12 +1173,13 @@ jQuery.atmosphere = function() {
                         if (_request.reconnect && _requestCount++ < _request.maxReconnectOnClose) {
                             _request.id = setTimeout(function() {
                                 _response.responseBody = "";
+                                _response.messages = [];
                                 _executeWebSocket(true);
                             }, _request.reconnectInterval);
                         } else {
                             jQuery.atmosphere.log(_request.logLevel, ["Websocket reconnect maximum try reached " + _requestCount]);
                             jQuery.atmosphere.warn("Websocket error, reason: " + message.reason);
-                            _onError();
+                            _onError(0, "maxReconnectOnClose reached");
                         }
                     }
                 };
@@ -1174,12 +1197,14 @@ jQuery.atmosphere = function() {
                 return true;
             }
 
-            function _onError() {
+            function _onError(code, reason) {
                 _clearState();
 
                 _response.state = 'error';
+                _response.reasonPhrase = reason;
                 _response.responseBody = "";
-                _response.status = 500;
+                _response.messages = [];
+                _response.status = code;
                 _invokeCallback();
             }
 
@@ -1220,8 +1245,11 @@ jQuery.atmosphere = function() {
 
                     if (messages.length != 0) {
                         response.responseBody = messages.join(request.messageDelimiter);
+                        response.messages = messages;
                         return false;
                     } else {
+                        response.responseBody = "";
+                        response.messages = [];
                         return true;
                     }
                 } else {
@@ -1246,15 +1274,15 @@ jQuery.atmosphere = function() {
                 }
 
                 _request.transport = _request.fallbackTransport;
-                var reconnect = _request.reconnect && _requestCount++ < _request.maxReconnectOnClose;
-                if (reconnect && _request.transport != 'none' || _request.transport == null) {
+                if (_request.reconnect && _request.transport != 'none' || _request.transport == null) {
                     _request.method = _request.fallbackMethod;
                     _response.transport = _request.fallbackTransport;
+                    _request.fallbackTransport = 'none';
                     _request.id = setTimeout(function() {
                         _execute();
                     }, _request.reconnectInterval);
-                } else if (!reconnect) {
-                    _onError();
+                }  else {
+                    _onError(500, "Unable to reconnect with fallback transport");
                 }
             }
 
@@ -1357,6 +1385,9 @@ jQuery.atmosphere = function() {
                     rq = request;
                 }
 
+                rq.lastIndex = 0;
+                rq.readyState = 0;
+
                 // CORS fake using JSONP
                 if ((rq.transport == 'jsonp') || ((rq.enableXDR) && (jQuery.atmosphere.checkCORSSupport()))) {
                     _jsonp(rq);
@@ -1392,32 +1423,34 @@ jQuery.atmosphere = function() {
                         _response.transport = rq.transport;
                     }
 
-                    if (!jQuery.browser.msie) {
-                        ajaxRequest.onerror = function() {
-                            try {
-                                _response.status = XMLHttpRequest.status;
-                            } catch(e) {
-                                _response.status = 500;
-                            }
+                    ajaxRequest.onerror = function() {
+                        _response.error = true;
+                        try {
+                            _response.status = XMLHttpRequest.status;
+                        } catch(e) {
+                            _response.status = 500;
+                        }
 
-                            if (!_response.status) {
-                                _response.status = 500;
-                            }
-                            _clearState();
+                        if (!_response.status) {
+                            _response.status = 500;
+                        }
+                        _clearState();
 
-                            if (rq.reconnect) {
+                        if (!_response.errorHandled) {
+                            if (rq.reconnect && _requestCount++ < rq.maxReconnectOnClose) {
                                 _reconnect(ajaxRequest, rq, true);
                             } else {
-                                _onError();
+                                _onError(0, "maxReconnectOnClose reached");
                             }
-                        };
-                    }
+                        }
+                        _response.errorHandled = true;
+                    };
 
                     ajaxRequest.onreadystatechange = function() {
                         if (_abordingConnection) {
                             return;
                         }
-
+                        _response.error = null;
                         var skipCallbackInvocation = false;
                         var update = false;
 
@@ -1453,17 +1486,23 @@ jQuery.atmosphere = function() {
                         }
 
                         if (update) {
-                            var responseText = ajaxRequest.responseText;
+                            // MSIE 9 and lower status can be higher than 1000, Chrome can be 0
+                            if (ajaxRequest.status >= 300 || ajaxRequest.status == 0) {
 
-                            // MSIE status can be higher than 1000, Chrome can be 0
-                            if (ajaxRequest.status >= 500 || ajaxRequest.status == 0) {
-                                if (rq.reconnect) {
+                                var status = ajaxRequest.status > 1000 ? ajaxRequest.status = 0 : ajaxRequest.status;
+                                // Allow recovering from cached content.
+                                clearTimeout(rq.id);
+
+                                // Prevent onerror callback to be called
+                                _response.errorHandled = true;
+                                if (status < 400 && _requestCount++ < _request.maxReconnectOnClose) {
                                     _reconnect(ajaxRequest, rq, true);
                                 } else {
-                                    _onError();
+                                    _onError(status, "maxReconnectOnClose reached");
                                 }
                                 return;
                             }
+                            var responseText = jQuery.trim(ajaxRequest.responseText);
 
                             _readHeaders(ajaxRequest, _request);
 
@@ -1521,33 +1560,28 @@ jQuery.atmosphere = function() {
                                                 _response.status = 404;
                                             }
                                             _response.state = "messageReceived";
-                                            _response.responseBody = ajaxRequest.responseText.substring(rq.lastIndex);
+
+                                            var message = ajaxRequest.responseText.substring(rq.lastIndex);
                                             rq.lastIndex = ajaxRequest.responseText.length;
 
-                                            if (!_handleProtocol( _request, _response.responseBody)) {
-                                                _reconnect(ajaxRequest, rq, false);
-                                                return;
-                                            }
-                                            _invokeCallback();
-                                            if ((rq.transport == 'streaming') && (ajaxRequest.responseText.length > rq.maxStreamingLength)) {
-                                                // Close and reopen connection on large data received
-                                                _clearState();
-                                                _doRequest(_buildAjaxRequest(), rq, true);
+                                            if (_handleProtocol( _request, message)) {
+                                                skipCallbackInvocation = _trackMessageSize(message, rq, _response);
+                                                if (!skipCallbackInvocation) {
+                                                    _invokeCallback();
+                                                }
+
+                                                _verifyStreamingLength(ajaxRequest, rq);
                                             }
                                         }
                                     }, 0);
                                 }
-
-                                if (skipCallbackInvocation) {
-                                    return;
-                                }
                             } else {
                                 if (!_handleProtocol( _request, responseText)) {
                                     _reconnect(ajaxRequest, rq, false);
                                     return;
                                 }
 
-                                _trackMessageSize(responseText, rq, _response);
+                                skipCallbackInvocation = _trackMessageSize(responseText, rq, _response);
                                 rq.lastIndex = responseText.length;
                             }
 
@@ -1575,17 +1609,15 @@ jQuery.atmosphere = function() {
                                 jQuery.atmosphere.log(rq.logLevel, ["parent.callback no longer supported with 0.8 version and up. Please upgrade"]);
                             }
 
-                            _invokeCallback();
+                            if (!skipCallbackInvocation) {
+                                _invokeCallback();
+                            }
 
                             if (rq.executeCallbackBeforeReconnect) {
                                 _reconnect(ajaxRequest, rq, false);
                             }
 
-                            if ((rq.transport == 'streaming') && (responseText.length > rq.maxStreamingLength)) {
-                                // Close and reopen connection on large data received
-                                _clearState();
-                                _doRequest(_buildAjaxRequest(), rq, true);
-                            }
+                            _verifyStreamingLength(ajaxRequest, rq);
                         }
                     };
                     ajaxRequest.send(rq.data);
@@ -1606,7 +1638,7 @@ jQuery.atmosphere = function() {
                     if (rq.logLevel == 'debug') {
                         jQuery.atmosphere.log(rq.logLevel, ["Max re-connection reached."]);
                     }
-                    _onError();
+                    _onError(0, "maxRequest reached");
                 }
             }
 
@@ -1651,13 +1683,13 @@ jQuery.atmosphere = function() {
                     if (request.trackMessageLength) {
                         ajaxRequest.setRequestHeader("X-Atmosphere-TrackMessageSize", "true")
                     }
-
-                    if (request.contentType != '') {
-                        ajaxRequest.setRequestHeader("Content-Type", request.contentType);
-                    }
                     ajaxRequest.setRequestHeader("X-Atmosphere-tracking-id", request.uuid);
                 }
 
+                if (request.contentType != '') {
+                    ajaxRequest.setRequestHeader("Content-Type", request.contentType);
+                }
+
                 jQuery.each(request.headers, function(name, value) {
                     var h = jQuery.isFunction(value) ? value.call(this, ajaxRequest, request, create, _response) : value;
                     if (h != null) {
@@ -1667,17 +1699,17 @@ jQuery.atmosphere = function() {
             }
 
             function _reconnect(ajaxRequest, request, force) {
-                var reconnect = request.reconnect && _requestCount++ < request.maxReconnectOnClose;
+                if (force || request.transport != 'streaming') {
+                    if ( request.reconnect || (request.suspend && _subscribed)) {
+                        var status = ajaxRequest.status > 1000 ? ajaxRequest.status = 0 : ajaxRequest.status;
+                        _response.status = status == 0 ? 204 : status;
+                        _response.reason = status == 0 ? "Server resumed the connection or down." : "OK";
 
-                if (reconnect && force || (request.suspend && ajaxRequest.status == 200 && request.transport != 'streaming' && _subscribed)) {
-                    if (request.reconnect) {
                         _open('re-opening', request.transport, request);
                         request.id = setTimeout(function() {
                             _executeRequest();
                         }, request.reconnectInterval);
                     }
-                } else if (!reconnect) {
-                    _onError();
                 }
             }
 
@@ -1747,10 +1779,8 @@ jQuery.atmosphere = function() {
                 xdr.onerror = function() {
                     // If the server doesn't send anything back to XDR will fail with polling
                     if (rq.transport != 'polling') {
-                        _prepareCallback(xdr.responseText, "error", 500, transport);
+                        _reconnect(xdr, rq, false);
                     }
-
-                    _reconnect(xdr, rq, false);
                 };
 
                 // Handles close event
@@ -1918,6 +1948,7 @@ jQuery.atmosphere = function() {
                                     var text = readResponse();
                                     if (text.length > rq.lastIndex) {
                                         _response.status = 200;
+                                        _response.error = null;
 
                                         // Empties response every time that it is handled
                                         res.innerText = "";
@@ -1938,12 +1969,13 @@ jQuery.atmosphere = function() {
 
                                 return false;
                             } catch (err) {
+                                _response.error = true;
                                 if (_requestCount++ < rq.maxReconnectOnClose) {
                                     rq.id = setTimeout(function() {
                                         _ieStreaming(rq);
                                     }, rq.reconnectInterval);
                                 } else {
-                                    _onError();
+                                    _onError(0, "maxReconnectOnClose reached");
                                 }
                                 doc.execCommand("Stop");
                                 doc.close();
@@ -2095,6 +2127,7 @@ jQuery.atmosphere = function() {
                     attachHeadersAsQueryString: true,
                     enableXDR: _request.enableXDR,
                     uuid : _request.uuid,
+                    messageDelimiter : '|',
                     enableProtocol : false,
                     maxReconnectOnClose : _request.maxReconnectOnClose
                 };
@@ -2147,11 +2180,11 @@ jQuery.atmosphere = function() {
             }
 
             function _prepareCallback(messageBody, state, errorCode, transport) {
-            	_response.responseBody = messageBody;
+
                 if (state == "messageReceived") {
-                    if (_trackMessageSize(messageBody, _request, _response)) {
-                    	return;
-                    }
+                    if (_trackMessageSize(messageBody, _request, _response)) return;
+                } else {
+                    _response.responseBody = messageBody;
                 }
 
                 _response.transport = transport;
@@ -2242,7 +2275,7 @@ jQuery.atmosphere = function() {
                 _request.reconnect = _request.mrequest;
 
                 var messages = (typeof(_response.responseBody) == 'string' && _request.trackMessageLength) ?
-                    _response.responseBody.split(_request.messageDelimiter) : new Array(_response.responseBody);
+                    (_response.messages.length>0 ? _response.messages : ['']) : new Array(_response.responseBody);
                 for (var i = 0; i < messages.length; i++) {
 
                     if (messages.length > 1 && messages[i].length == 0) {
@@ -2250,13 +2283,8 @@ jQuery.atmosphere = function() {
                     }
                     _response.responseBody = jQuery.trim(messages[i]);
 
-                    // Ugly see issue 400.
-                    if (_response.responseBody.length == 0 && _response.transport == 'streaming' && _response.state == "messageReceived") {
-                        var ua = navigator.userAgent.toLowerCase();
-                        var isAndroid = ua.indexOf("android") > -1;
-                        if (isAndroid) {
-                            continue;
-                        }
+                    if (_response.responseBody.length == 0 && _response.state == "messageReceived") {
+                        continue;
                     }
 
                     _invokeFunction(_response);
@@ -2289,16 +2317,51 @@ jQuery.atmosphere = function() {
             }
 
             /**
+             *
+             * @private
+             */
+            function _verifyStreamingLength(ajaxRequest, rq){
+                // Wait to be sure we have the full message before closing.
+                if (_response.partialMessage == "" &&
+                        (rq.transport == 'streaming') &&
+                        (ajaxRequest.responseText.length > rq.maxStreamingLength)) {
+                    _response.messages = [];
+                    _disconnect();
+                    _clearState();
+                    _reconnect(ajaxRequest, rq, true);
+                }
+            }
+
+            /**
+             * Disconnect
+             * @private
+             */
+            function _disconnect() {
+                if (_request.enableProtocol) {
+                    var query = "X-Atmosphere-Transport=close&X-Atmosphere-tracking-id=" + _request.uuid;
+                    var url = _request.url.replace(/([?&])_=[^&]*/, query);
+                    url = url + (url === _request.url ? (/\?/.test(_request.url) ? "&" : "?") + query : "");
+
+                    if (_request.connectTimeout > -1) {
+                        jQuery.ajax({url: url, async: false, timeout: _request.connectTimeout});
+                    } else {
+                        jQuery.ajax({url: url, async: false});
+                    }
+                }
+            }
+
+            /**
              * Close request.
              *
              * @private
              */
             function _close() {
-                _abordingConnection = true;
                 _request.reconnect = false;
+                _abordingConnection = true;
                 _response.request = _request;
                 _response.state = 'unsubscribe';
                 _response.responseBody = "";
+                _response.messages = [];
                 _response.status = 408;
                 _invokeCallback();
 
@@ -2319,7 +2382,9 @@ jQuery.atmosphere = function() {
                     _activeRequest = null;
                 }
                 if (_websocket != null) {
-                    _websocket.close();
+                    if (_websocket.webSocketOpened) {
+                        _websocket.close();
+                    }
                     _websocket = null;
                 }
                 if (_sse != null) {
@@ -2343,7 +2408,7 @@ jQuery.atmosphere = function() {
                 if (_localStorageService != null) {
                     _localStorageService.close();
                 }
-            }
+            };
 
             this.subscribe = function(options) {
                 _subscribe(options);
@@ -2362,6 +2427,10 @@ jQuery.atmosphere = function() {
                 _close();
             };
 
+            this.disconnect = function () {
+                _disconnect();
+            };
+
             this.getUrl = function() {
                 return _request.url;
             };
@@ -2421,10 +2490,8 @@ jQuery.atmosphere = function() {
               var requestsClone = [].concat(jQuery.atmosphere.requests);
               for (var i = 0; i < requestsClone.length; i++) {
                     var rq = requestsClone[i];
+                    rq.disconnect();
                     rq.close();
-                    if (rq.enableProtocol()) {
-                        jQuery.ajax({url: this._closeUrl(rq), async:false});
-                    }
                     clearTimeout(rq.response.request.id);
                 }
             }
@@ -2432,12 +2499,6 @@ jQuery.atmosphere = function() {
             jQuery.atmosphere.callbacks = [];
         },
 
-        _closeUrl : function(rq) {
-            var query = "X-Atmosphere-Transport=close&X-Atmosphere-tracking-id=" + rq.getUUID();
-            var url = rq.getUrl().replace(/([?&])_=[^&]*/, query);
-            return url + (url === rq.getUrl() ? (/\?/.test(rq.getUrl()) ? "&" : "?") + query : "");
-        },
-
         unsubscribeUrl: function(url) {
             var idx = -1;
             if (jQuery.atmosphere.requests.length > 0) {
@@ -2446,10 +2507,8 @@ jQuery.atmosphere = function() {
 
                     // Suppose you can subscribe once to an url
                     if (rq.getUrl() == url) {
+                        rq.disconnect();
                         rq.close();
-                        if (rq.enableProtocol()) {
-                            jQuery.ajax({url :this._closeUrl(rq), async:false});
-                        }
                         clearTimeout(rq.response.request.id);
                         idx = i;
                         break;
@@ -2643,8 +2702,8 @@ jQuery.atmosphere = function() {
 /*
  * jQuery stringifyJSON
  * http://github.com/flowersinthesand/jquery-stringifyJSON
- * 
- * Copyright 2011, Donghwan Kim 
+ *
+ * Copyright 2011, Donghwan Kim
  * Licensed under the Apache License, Version 2.0
  * http://www.apache.org/licenses/LICENSE-2.0
  */
@@ -2728,4 +2787,4 @@ jQuery.atmosphere = function() {
         return str("", {"": value});
     };
 
-}(jQuery));
\ No newline at end of file
+}(jQuery));