diff --git a/CHANGELOG.md b/CHANGELOG.md
index 734594874..b930bf446 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,14 @@
+<a name="0.8.4"></a>
+## [0.8.4](https://github.com/angular/zone.js/compare/v0.8.3...0.8.4) (2017-03-16)
+
+
+### Bug Fixes
+
+* correct declaration which breaks closure ([0e19304](https://github.com/angular/zone.js/commit/0e19304))
+* stack rewriting now works with source maps ([bcd09a0](https://github.com/angular/zone.js/commit/bcd09a0))
+
+
+
 <a name="0.8.3"></a>
 ## [0.8.3](https://github.com/angular/zone.js/compare/v0.8.1...0.8.3) (2017-03-15)
 
diff --git a/dist/long-stack-trace-zone.js b/dist/long-stack-trace-zone.js
index a55f06acc..593c36bd1 100644
--- a/dist/long-stack-trace-zone.js
+++ b/dist/long-stack-trace-zone.js
@@ -23,9 +23,11 @@
  * @suppress {globalThis}
  */
 var NEWLINE = '\n';
-var SEP = '  -------------  ';
-var IGNORE_FRAMES = [];
+var IGNORE_FRAMES = {};
 var creationTrace = '__creationTrace__';
+var ERROR_TAG = 'STACKTRACE TRACKING';
+var SEP_TAG = '__SEP_TAG__';
+var sepTemplate = '';
 var LongStackTrace = (function () {
     function LongStackTrace() {
         this.error = getStacktrace();
@@ -34,7 +36,7 @@ var LongStackTrace = (function () {
     return LongStackTrace;
 }());
 function getStacktraceWithUncaughtError() {
-    return new Error('STACKTRACE TRACKING');
+    return new Error(ERROR_TAG);
 }
 function getStacktraceWithCaughtError() {
     try {
@@ -59,19 +61,21 @@ function addErrorStack(lines, error) {
     for (var i = 0; i < trace.length; i++) {
         var frame = trace[i];
         // Filter out the Frames which are part of stack capturing.
-        if (!(i < IGNORE_FRAMES.length && IGNORE_FRAMES[i] === frame)) {
+        if (!IGNORE_FRAMES.hasOwnProperty(frame)) {
             lines.push(trace[i]);
         }
     }
 }
 function renderLongStackTrace(frames, stack) {
-    var longTrace = [stack];
+    var longTrace = [stack.trim()];
     if (frames) {
         var timestamp = new Date().getTime();
         for (var i = 0; i < frames.length; i++) {
             var traceFrames = frames[i];
             var lastTime = traceFrames.timestamp;
-            longTrace.push(SEP + " Elapsed: " + (timestamp - lastTime.getTime()) + " ms; At: " + lastTime + " " + SEP);
+            var separator = "____________________Elapsed " + (timestamp - lastTime.getTime()) + " ms; At: " + lastTime;
+            separator = separator.replace(/[^\w\d]/g, '_');
+            longTrace.push(sepTemplate.replace(SEP_TAG, separator));
             addErrorStack(longTrace, traceFrames.error);
             timestamp = lastTime.getTime();
         }
@@ -109,40 +113,12 @@ Zone['longStackTraceZoneSpec'] = {
     onHandleError: function (parentZoneDelegate, currentZone, targetZone, error) {
         var parentTask = Zone.currentTask || error.task;
         if (error instanceof Error && parentTask) {
-            var stackSetSucceeded = null;
+            var longStack = renderLongStackTrace(parentTask.data && parentTask.data[creationTrace], error.stack);
             try {
-                var descriptor = Object.getOwnPropertyDescriptor(error, 'stack');
-                if (descriptor && descriptor.configurable) {
-                    var delegateGet_1 = descriptor.get;
-                    var value_1 = descriptor.value;
-                    descriptor = {
-                        get: function () {
-                            return renderLongStackTrace(parentTask.data && parentTask.data[creationTrace], delegateGet_1 ? delegateGet_1.apply(this) : value_1);
-                        }
-                    };
-                    Object.defineProperty(error, 'stack', descriptor);
-                    stackSetSucceeded = true;
-                }
+                error.stack = error.longStack = longStack;
             }
             catch (err) {
             }
-            var longStack = stackSetSucceeded ?
-                null :
-                renderLongStackTrace(parentTask.data && parentTask.data[creationTrace], error.stack);
-            if (!stackSetSucceeded) {
-                try {
-                    stackSetSucceeded = error.stack = longStack;
-                }
-                catch (err) {
-                }
-            }
-            if (!stackSetSucceeded) {
-                try {
-                    stackSetSucceeded = error.longStack = longStack;
-                }
-                catch (err) {
-                }
-            }
         }
         return parentZoneDelegate.handleError(targetZone, error);
     }
@@ -161,12 +137,20 @@ function computeIgnoreFrames() {
     for (var i = 0; i < frames1.length; i++) {
         var frame1 = frames1[i];
         var frame2 = frames2[i];
+        if (!sepTemplate && frame1.indexOf(ERROR_TAG) == -1) {
+            sepTemplate = frame1.replace(/^(\s*(at)?\s*)([\w\/\<]+)/, '$1' + SEP_TAG);
+        }
         if (frame1 === frame2) {
-            IGNORE_FRAMES.push(frame1);
+            IGNORE_FRAMES[frame1] = true;
         }
         else {
             break;
         }
+        console.log('>>>>>>', sepTemplate, frame1);
+    }
+    if (!sepTemplate) {
+        // If we could not find it default to this text.
+        sepTemplate = SEP_TAG + '@[native code]';
     }
 }
 computeIgnoreFrames();
diff --git a/dist/long-stack-trace-zone.min.js b/dist/long-stack-trace-zone.min.js
index 59cf38dbe..d18dbc57a 100644
--- a/dist/long-stack-trace-zone.min.js
+++ b/dist/long-stack-trace-zone.min.js
@@ -1 +1 @@
-!function(t,a){"object"==typeof exports&&"undefined"!=typeof module?a():"function"==typeof define&&define.amd?define(a):a()}(this,function(){"use strict";function t(){return new Error("STACKTRACE TRACKING")}function a(){try{throw t()}catch(a){return a}}function e(t){return t.stack?t.stack.split(i):[]}function n(t,a){for(var n=e(a),r=0;r<n.length;r++){var c=n[r];r<s.length&&s[r]===c||t.push(n[r])}}function r(t,a){var e=[a];if(t)for(var r=(new Date).getTime(),c=0;c<t.length;c++){var o=t[c],s=o.timestamp;e.push(u+" Elapsed: "+(r-s.getTime())+" ms; At: "+s+" "+u),n(e,o.error),r=s.getTime()}return e.join(i)}function c(t,a){a>0&&(t.push(e((new l).error)),c(t,a-1))}function o(){var t=[];c(t,2);for(var a=t[0],e=t[1],n=0;n<a.length;n++){var r=a[n],o=e[n];if(r!==o)break;s.push(r)}}var i="\n",u="  -------------  ",s=[],f="__creationTrace__",l=function(){function t(){this.error=k(),this.timestamp=new Date}return t}(),d=t(),h=a(),k=d.stack?t:h.stack?a:t;Zone.longStackTraceZoneSpec={name:"long-stack-trace",longStackTraceLimit:10,getLongStackTrace:function(t){if(t){var a=t[Zone.__symbol__("currentTask")],e=a&&a.data&&a.data[f];return e?r(e,t.stack):t.stack}},onScheduleTask:function(t,a,e,n){var r=Zone.currentTask,c=r&&r.data&&r.data[f]||[];return c=[new l].concat(c),c.length>this.longStackTraceLimit&&(c.length=this.longStackTraceLimit),n.data||(n.data={}),n.data[f]=c,t.scheduleTask(e,n)},onHandleError:function(t,a,e,n){var c=Zone.currentTask||n.task;if(n instanceof Error&&c){var o=null;try{var i=Object.getOwnPropertyDescriptor(n,"stack");if(i&&i.configurable){var u=i.get,s=i.value;i={get:function(){return r(c.data&&c.data[f],u?u.apply(this):s)}},Object.defineProperty(n,"stack",i),o=!0}}catch(l){}var d=o?null:r(c.data&&c.data[f],n.stack);if(!o)try{o=n.stack=d}catch(l){}if(!o)try{o=n.longStack=d}catch(l){}}return t.handleError(e,n)}},o()});
\ No newline at end of file
+!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?e():"function"==typeof define&&define.amd?define(e):e()}(this,function(){"use strict";function t(){return new Error(_)}function e(){try{throw t()}catch(e){return e}}function n(t){return t.stack?t.stack.split(i):[]}function a(t,e){for(var a=n(e),r=0;r<a.length;r++){var c=a[r];s.hasOwnProperty(c)||t.push(a[r])}}function r(t,e){var n=[e.trim()];if(t)for(var r=(new Date).getTime(),c=0;c<t.length;c++){var o=t[c],s=o.timestamp,u="____________________Elapsed "+(r-s.getTime())+" ms; At: "+s;u=u.replace(/[^\w\d]/g,"_"),n.push(d.replace(f,u)),a(n,o.error),r=s.getTime()}return n.join(i)}function c(t,e){e>0&&(t.push(n((new l).error)),c(t,e-1))}function o(){var t=[];c(t,2);for(var e=t[0],n=t[1],a=0;a<e.length;a++){var r=e[a],o=n[a];if(d||r.indexOf(_)!=-1||(d=r.replace(/^(\s*(at)?\s*)([\w\/\<]+)/,"$1"+f)),r!==o)break;s[r]=!0,console.log(">>>>>>",d,r)}d||(d=f+"@[native code]")}var i="\n",s={},u="__creationTrace__",_="STACKTRACE TRACKING",f="__SEP_TAG__",d="",l=function(){function t(){this.error=g(),this.timestamp=new Date}return t}(),k=t(),h=e(),g=k.stack?t:h.stack?e:t;Zone.longStackTraceZoneSpec={name:"long-stack-trace",longStackTraceLimit:10,getLongStackTrace:function(t){if(t){var e=t[Zone.__symbol__("currentTask")],n=e&&e.data&&e.data[u];return n?r(n,t.stack):t.stack}},onScheduleTask:function(t,e,n,a){var r=Zone.currentTask,c=r&&r.data&&r.data[u]||[];return c=[new l].concat(c),c.length>this.longStackTraceLimit&&(c.length=this.longStackTraceLimit),a.data||(a.data={}),a.data[u]=c,t.scheduleTask(n,a)},onHandleError:function(t,e,n,a){var c=Zone.currentTask||a.task;if(a instanceof Error&&c){var o=r(c.data&&c.data[u],a.stack);try{a.stack=a.longStack=o}catch(i){}}return t.handleError(n,a)}},o()});
\ No newline at end of file
diff --git a/dist/zone-mix.js b/dist/zone-mix.js
index a5021dfaf..ffe0c2917 100644
--- a/dist/zone-mix.js
+++ b/dist/zone-mix.js
@@ -280,7 +280,7 @@ var Zone$1 = (function (global) {
     };
     var ZoneDelegate = (function () {
         function ZoneDelegate(zone, parentDelegate, zoneSpec) {
-            this._taskCounts = { microTask: 0, macroTask: 0, eventTask: 0 };
+            this._taskCounts = { 'microTask': 0, 'macroTask': 0, 'eventTask': 0 };
             this.zone = zone;
             this._parentDelegate = parentDelegate;
             this._forkZS = zoneSpec && (zoneSpec && zoneSpec.onFork ? zoneSpec : parentDelegate._forkZS);
@@ -919,112 +919,6 @@ var Zone$1 = (function (global) {
     var zoneAwareErrorStartFrames = [];
     global.Error = ZoneAwareError;
     var stackRewrite = 'stackRewrite';
-    // fix #595, create property descriptor
-    // for error properties
-    var createProperty = function (props, key) {
-        // if property is already defined, skip it.
-        if (props[key]) {
-            return;
-        }
-        // define a local property
-        // in case error property is not settable
-        var name = __symbol__(key);
-        props[key] = {
-            configurable: true,
-            enumerable: true,
-            get: function () {
-                // if local property has no value
-                // use internal error's property value
-                if (!this[name]) {
-                    var error_2 = this[__symbol__('error')];
-                    if (error_2) {
-                        this[name] = error_2[key];
-                    }
-                }
-                return this[name];
-            },
-            set: function (value) {
-                // setter will set value to local property value
-                this[name] = value;
-            }
-        };
-    };
-    // fix #595, create property descriptor
-    // for error method properties
-    var createMethodProperty = function (props, key) {
-        if (props[key]) {
-            return;
-        }
-        props[key] = {
-            configurable: true,
-            enumerable: true,
-            writable: true,
-            value: function () {
-                var error = this[__symbol__('error')];
-                var errorMethod = (error && error[key]) || this[key];
-                if (errorMethod) {
-                    return errorMethod.apply(error, arguments);
-                }
-            }
-        };
-    };
-    var createErrorProperties = function () {
-        var props = Object.create(null);
-        var error = new NativeError();
-        var keys = Object.getOwnPropertyNames(error);
-        for (var i = 0; i < keys.length; i++) {
-            var key = keys[i];
-            // Avoid bugs when hasOwnProperty is shadowed
-            if (Object.prototype.hasOwnProperty.call(error, key)) {
-                createProperty(props, key);
-            }
-        }
-        var proto = NativeError.prototype;
-        if (proto) {
-            var pKeys = Object.getOwnPropertyNames(proto);
-            for (var i = 0; i < pKeys.length; i++) {
-                var key = pKeys[i];
-                // skip constructor
-                if (key !== 'constructor' && key !== 'toString' && key !== 'toSource') {
-                    createProperty(props, key);
-                }
-            }
-        }
-        // some other properties are not
-        // in NativeError
-        createProperty(props, 'originalStack');
-        createProperty(props, 'zoneAwareStack');
-        // in IE, stack is not in prototype
-        createProperty(props, 'stack');
-        // define toString, toSource as method property
-        createMethodProperty(props, 'toString');
-        createMethodProperty(props, 'toSource');
-        return props;
-    };
-    var errorProperties = createErrorProperties();
-    // for derived Error class which extends ZoneAwareError
-    // we should not override the derived class's property
-    // so we create a new props object only copy the properties
-    // from errorProperties which not exist in derived Error's prototype
-    var getErrorPropertiesForPrototype = function (prototype) {
-        // if the prototype is ZoneAwareError.prototype
-        // we just return the prebuilt errorProperties.
-        if (prototype === ZoneAwareError.prototype) {
-            return errorProperties;
-        }
-        var newProps = Object.create(null);
-        var cKeys = Object.getOwnPropertyNames(errorProperties);
-        var keys = Object.getOwnPropertyNames(prototype);
-        cKeys.forEach(function (cKey) {
-            if (keys.filter(function (key) {
-                return key === cKey;
-            })
-                .length === 0) {
-                newProps[cKey] = errorProperties[cKey];
-            }
-        });
-        return newProps;
-    };
     // some functions are not easily to be detected here,
     // for example Timeout.ZoneTask.invoke, if we want to detect those functions
     // by detect zone, we have to run all patched APIs, it is too risky
@@ -1033,7 +927,7 @@ var Zone$1 = (function (global) {
         'ZoneTask.invoke', 'ZoneAware', 'getStacktraceWithUncaughtError', 'new LongStackTrace',
         'long-stack-trace'
     ];
-    function attachZoneAndRemoveInternalZoneFrames(error, zoneAwareError) {
+    function attachZoneAndRemoveInternalZoneFrames(error) {
         // Save original stack trace
         error.originalStack = error.stack;
         // Process the stack trace and rewrite the frames.
@@ -1087,7 +981,6 @@ var Zone$1 = (function (global) {
             catch (nonWritableErr) {
                 // in some browser, the error.stack is readonly such as PhantomJS
                 // so we need to store the stack frames to zoneAwareError directly
-                zoneAwareError.stack = finalStack;
             }
         }
     }
@@ -1096,14 +989,7 @@ var Zone$1 = (function (global) {
      * adds zone information to it.
      */
     function ZoneAwareError() {
-        // make sure we have a valid this
-        // if this is undefined(call Error without new) or this is global
-        // or this is some other objects, we should force to create a
-        // valid ZoneAwareError by call Object.create()
-        if (!(this instanceof ZoneAwareError)) {
-            return ZoneAwareError.apply(Object.create(ZoneAwareError.prototype), arguments);
-        }
-        // Create an Error.
+        // We always have to return native error otherwise the browser console will not work.
         var error = NativeError.apply(this, arguments);
         if (!error.stack) {
             // in IE, the error.stack will be undefined
@@ -1116,15 +1002,10 @@ var Zone$1 = (function (global) {
                 error = err;
             }
         }
-        this[__symbol__('error')] = error;
         // 1. attach zone information to stack frame
         // 2. remove zone internal stack frames
-        attachZoneAndRemoveInternalZoneFrames(error, this);
-        // use defineProperties here instead of copy property value
-        // because of issue #595 which will break angular2.
-        var props = getErrorPropertiesForPrototype(Object.getPrototypeOf(this));
-        Object.defineProperties(this, props);
-        return this;
+        attachZoneAndRemoveInternalZoneFrames(error);
+        return error;
     }
     // Copy the prototype so that instanceof operator works as expected
     ZoneAwareError.prototype = NativeError.prototype;
@@ -1258,8 +1139,6 @@ var Zone$1 = (function (global) {
     // 1. IE issue, the error.stack can only be not undefined after throw
     // 2. handle Error(...) without new options
     var throwError = function (message, withNew) {
-        if (withNew === void 0) { withNew = true; }
-        var error;
         try {
             if (withNew) {
                 throw new Error(message);
@@ -1269,9 +1148,8 @@ var Zone$1 = (function (global) {
             }
         }
         catch (err) {
-            error = err;
+            return err;
         }
-        return error;
     };
     var nativeStackTraceLimit = NativeError.stackTraceLimit;
     // in some system/browser, some additional stack frames
@@ -1284,14 +1162,14 @@ var Zone$1 = (function (global) {
     var detectRunFn = function () {
         detectZone.run(function () {
             detectZone.runGuarded(function () {
-                throw throwError('blacklistStackFrames');
+                throw throwError('blacklistStackFrames', true);
             });
         });
     };
     var detectRunWithoutNewFn = function () {
         detectZone.run(function () {
             detectZone.runGuarded(function () {
-                throw throwError('blacklistStackFrames', false);
+                throw throwError('blacklistStackFrames');
             });
         });
     };
@@ -1440,7 +1318,7 @@ var Zone$1 = (function (global) {
     detectZoneWithCallbacks.runGuarded(detectPromiseCaughtWithoutNewFn);
     NativeError.stackTraceLimit = nativeStackTraceLimit;
     return global['Zone'] = Zone;
-})(typeof window === 'object' && window || typeof self === 'object' && self || global);
+})(typeof window !== 'undefined' && window || typeof self !== 'undefined' && self || global);
 
 /**
  * @license
@@ -1945,14 +1823,16 @@ function patchTimer(window, setName, cancelName, nameSuffix) {
     var tasksByHandleId = {};
     function scheduleTask(task) {
         var data = task.data;
-        data.args[0] = function () {
+        function timer() {
             try {
                 task.invoke.apply(this, arguments);
             }
             finally {
                 delete tasksByHandleId[data.handleId];
             }
-        };
+        }
+        
+        data.args[0] = timer;
         data.handleId = setNative.apply(window, data.args);
         tasksByHandleId[data.handleId] = task;
         return task;
@@ -2330,7 +2210,7 @@ function registerElementPatch(_global) {
 var set = 'set';
 var clear = 'clear';
 var blockingMethods = ['alert', 'prompt', 'confirm'];
-var _global = typeof window === 'object' && window || typeof self === 'object' && self || global;
+var _global = typeof window !== 'undefined' && window || typeof self !== 'undefined' && self || global;
 patchTimer(_global, set, clear, 'Timeout');
 patchTimer(_global, set, clear, 'Interval');
 patchTimer(_global, set, clear, 'Immediate');
diff --git a/dist/zone-node.js b/dist/zone-node.js
index 1d3ec9aa9..4aac4b0d5 100644
--- a/dist/zone-node.js
+++ b/dist/zone-node.js
@@ -280,7 +280,7 @@ var Zone$1 = (function (global) {
     };
     var ZoneDelegate = (function () {
         function ZoneDelegate(zone, parentDelegate, zoneSpec) {
-            this._taskCounts = { microTask: 0, macroTask: 0, eventTask: 0 };
+            this._taskCounts = { 'microTask': 0, 'macroTask': 0, 'eventTask': 0 };
             this.zone = zone;
             this._parentDelegate = parentDelegate;
             this._forkZS = zoneSpec && (zoneSpec && zoneSpec.onFork ? zoneSpec : parentDelegate._forkZS);
@@ -919,112 +919,6 @@ var Zone$1 = (function (global) {
     var zoneAwareErrorStartFrames = [];
     global.Error = ZoneAwareError;
     var stackRewrite = 'stackRewrite';
-    // fix #595, create property descriptor
-    // for error properties
-    var createProperty = function (props, key) {
-        // if property is already defined, skip it.
-        if (props[key]) {
-            return;
-        }
-        // define a local property
-        // in case error property is not settable
-        var name = __symbol__(key);
-        props[key] = {
-            configurable: true,
-            enumerable: true,
-            get: function () {
-                // if local property has no value
-                // use internal error's property value
-                if (!this[name]) {
-                    var error_2 = this[__symbol__('error')];
-                    if (error_2) {
-                        this[name] = error_2[key];
-                    }
-                }
-                return this[name];
-            },
-            set: function (value) {
-                // setter will set value to local property value
-                this[name] = value;
-            }
-        };
-    };
-    // fix #595, create property descriptor
-    // for error method properties
-    var createMethodProperty = function (props, key) {
-        if (props[key]) {
-            return;
-        }
-        props[key] = {
-            configurable: true,
-            enumerable: true,
-            writable: true,
-            value: function () {
-                var error = this[__symbol__('error')];
-                var errorMethod = (error && error[key]) || this[key];
-                if (errorMethod) {
-                    return errorMethod.apply(error, arguments);
-                }
-            }
-        };
-    };
-    var createErrorProperties = function () {
-        var props = Object.create(null);
-        var error = new NativeError();
-        var keys = Object.getOwnPropertyNames(error);
-        for (var i = 0; i < keys.length; i++) {
-            var key = keys[i];
-            // Avoid bugs when hasOwnProperty is shadowed
-            if (Object.prototype.hasOwnProperty.call(error, key)) {
-                createProperty(props, key);
-            }
-        }
-        var proto = NativeError.prototype;
-        if (proto) {
-            var pKeys = Object.getOwnPropertyNames(proto);
-            for (var i = 0; i < pKeys.length; i++) {
-                var key = pKeys[i];
-                // skip constructor
-                if (key !== 'constructor' && key !== 'toString' && key !== 'toSource') {
-                    createProperty(props, key);
-                }
-            }
-        }
-        // some other properties are not
-        // in NativeError
-        createProperty(props, 'originalStack');
-        createProperty(props, 'zoneAwareStack');
-        // in IE, stack is not in prototype
-        createProperty(props, 'stack');
-        // define toString, toSource as method property
-        createMethodProperty(props, 'toString');
-        createMethodProperty(props, 'toSource');
-        return props;
-    };
-    var errorProperties = createErrorProperties();
-    // for derived Error class which extends ZoneAwareError
-    // we should not override the derived class's property
-    // so we create a new props object only copy the properties
-    // from errorProperties which not exist in derived Error's prototype
-    var getErrorPropertiesForPrototype = function (prototype) {
-        // if the prototype is ZoneAwareError.prototype
-        // we just return the prebuilt errorProperties.
-        if (prototype === ZoneAwareError.prototype) {
-            return errorProperties;
-        }
-        var newProps = Object.create(null);
-        var cKeys = Object.getOwnPropertyNames(errorProperties);
-        var keys = Object.getOwnPropertyNames(prototype);
-        cKeys.forEach(function (cKey) {
-            if (keys.filter(function (key) {
-                return key === cKey;
-            })
-                .length === 0) {
-                newProps[cKey] = errorProperties[cKey];
-            }
-        });
-        return newProps;
-    };
     // some functions are not easily to be detected here,
     // for example Timeout.ZoneTask.invoke, if we want to detect those functions
     // by detect zone, we have to run all patched APIs, it is too risky
@@ -1033,7 +927,7 @@ var Zone$1 = (function (global) {
         'ZoneTask.invoke', 'ZoneAware', 'getStacktraceWithUncaughtError', 'new LongStackTrace',
         'long-stack-trace'
     ];
-    function attachZoneAndRemoveInternalZoneFrames(error, zoneAwareError) {
+    function attachZoneAndRemoveInternalZoneFrames(error) {
         // Save original stack trace
         error.originalStack = error.stack;
         // Process the stack trace and rewrite the frames.
@@ -1087,7 +981,6 @@ var Zone$1 = (function (global) {
             catch (nonWritableErr) {
                 // in some browser, the error.stack is readonly such as PhantomJS
                 // so we need to store the stack frames to zoneAwareError directly
-                zoneAwareError.stack = finalStack;
             }
         }
     }
@@ -1096,14 +989,7 @@ var Zone$1 = (function (global) {
      * adds zone information to it.
      */
     function ZoneAwareError() {
-        // make sure we have a valid this
-        // if this is undefined(call Error without new) or this is global
-        // or this is some other objects, we should force to create a
-        // valid ZoneAwareError by call Object.create()
-        if (!(this instanceof ZoneAwareError)) {
-            return ZoneAwareError.apply(Object.create(ZoneAwareError.prototype), arguments);
-        }
-        // Create an Error.
+        // We always have to return native error otherwise the browser console will not work.
         var error = NativeError.apply(this, arguments);
         if (!error.stack) {
             // in IE, the error.stack will be undefined
@@ -1116,15 +1002,10 @@ var Zone$1 = (function (global) {
                 error = err;
             }
         }
-        this[__symbol__('error')] = error;
         // 1. attach zone information to stack frame
         // 2. remove zone internal stack frames
-        attachZoneAndRemoveInternalZoneFrames(error, this);
-        // use defineProperties here instead of copy property value
-        // because of issue #595 which will break angular2.
-        var props = getErrorPropertiesForPrototype(Object.getPrototypeOf(this));
-        Object.defineProperties(this, props);
-        return this;
+        attachZoneAndRemoveInternalZoneFrames(error);
+        return error;
     }
     // Copy the prototype so that instanceof operator works as expected
     ZoneAwareError.prototype = NativeError.prototype;
@@ -1258,8 +1139,6 @@ var Zone$1 = (function (global) {
     // 1. IE issue, the error.stack can only be not undefined after throw
     // 2. handle Error(...) without new options
     var throwError = function (message, withNew) {
-        if (withNew === void 0) { withNew = true; }
-        var error;
         try {
             if (withNew) {
                 throw new Error(message);
@@ -1269,9 +1148,8 @@ var Zone$1 = (function (global) {
             }
         }
         catch (err) {
-            error = err;
+            return err;
         }
-        return error;
     };
     var nativeStackTraceLimit = NativeError.stackTraceLimit;
     // in some system/browser, some additional stack frames
@@ -1284,14 +1162,14 @@ var Zone$1 = (function (global) {
     var detectRunFn = function () {
         detectZone.run(function () {
             detectZone.runGuarded(function () {
-                throw throwError('blacklistStackFrames');
+                throw throwError('blacklistStackFrames', true);
             });
         });
     };
     var detectRunWithoutNewFn = function () {
         detectZone.run(function () {
             detectZone.runGuarded(function () {
-                throw throwError('blacklistStackFrames', false);
+                throw throwError('blacklistStackFrames');
             });
         });
     };
@@ -1440,7 +1318,7 @@ var Zone$1 = (function (global) {
     detectZoneWithCallbacks.runGuarded(detectPromiseCaughtWithoutNewFn);
     NativeError.stackTraceLimit = nativeStackTraceLimit;
     return global['Zone'] = Zone;
-})(typeof window === 'object' && window || typeof self === 'object' && self || global);
+})(typeof window !== 'undefined' && window || typeof self !== 'undefined' && self || global);
 
 /**
  * @license
@@ -1947,14 +1825,16 @@ function patchTimer(window, setName, cancelName, nameSuffix) {
     var tasksByHandleId = {};
     function scheduleTask(task) {
         var data = task.data;
-        data.args[0] = function () {
+        function timer() {
             try {
                 task.invoke.apply(this, arguments);
             }
             finally {
                 delete tasksByHandleId[data.handleId];
             }
-        };
+        }
+        
+        data.args[0] = timer;
         data.handleId = setNative.apply(window, data.args);
         tasksByHandleId[data.handleId] = task;
         return task;
diff --git a/dist/zone.js b/dist/zone.js
index 54ba94ce9..d402de2b0 100644
--- a/dist/zone.js
+++ b/dist/zone.js
@@ -280,7 +280,7 @@ var Zone$1 = (function (global) {
     };
     var ZoneDelegate = (function () {
         function ZoneDelegate(zone, parentDelegate, zoneSpec) {
-            this._taskCounts = { microTask: 0, macroTask: 0, eventTask: 0 };
+            this._taskCounts = { 'microTask': 0, 'macroTask': 0, 'eventTask': 0 };
             this.zone = zone;
             this._parentDelegate = parentDelegate;
             this._forkZS = zoneSpec && (zoneSpec && zoneSpec.onFork ? zoneSpec : parentDelegate._forkZS);
@@ -919,112 +919,6 @@ var Zone$1 = (function (global) {
     var zoneAwareErrorStartFrames = [];
     global.Error = ZoneAwareError;
     var stackRewrite = 'stackRewrite';
-    // fix #595, create property descriptor
-    // for error properties
-    var createProperty = function (props, key) {
-        // if property is already defined, skip it.
-        if (props[key]) {
-            return;
-        }
-        // define a local property
-        // in case error property is not settable
-        var name = __symbol__(key);
-        props[key] = {
-            configurable: true,
-            enumerable: true,
-            get: function () {
-                // if local property has no value
-                // use internal error's property value
-                if (!this[name]) {
-                    var error_2 = this[__symbol__('error')];
-                    if (error_2) {
-                        this[name] = error_2[key];
-                    }
-                }
-                return this[name];
-            },
-            set: function (value) {
-                // setter will set value to local property value
-                this[name] = value;
-            }
-        };
-    };
-    // fix #595, create property descriptor
-    // for error method properties
-    var createMethodProperty = function (props, key) {
-        if (props[key]) {
-            return;
-        }
-        props[key] = {
-            configurable: true,
-            enumerable: true,
-            writable: true,
-            value: function () {
-                var error = this[__symbol__('error')];
-                var errorMethod = (error && error[key]) || this[key];
-                if (errorMethod) {
-                    return errorMethod.apply(error, arguments);
-                }
-            }
-        };
-    };
-    var createErrorProperties = function () {
-        var props = Object.create(null);
-        var error = new NativeError();
-        var keys = Object.getOwnPropertyNames(error);
-        for (var i = 0; i < keys.length; i++) {
-            var key = keys[i];
-            // Avoid bugs when hasOwnProperty is shadowed
-            if (Object.prototype.hasOwnProperty.call(error, key)) {
-                createProperty(props, key);
-            }
-        }
-        var proto = NativeError.prototype;
-        if (proto) {
-            var pKeys = Object.getOwnPropertyNames(proto);
-            for (var i = 0; i < pKeys.length; i++) {
-                var key = pKeys[i];
-                // skip constructor
-                if (key !== 'constructor' && key !== 'toString' && key !== 'toSource') {
-                    createProperty(props, key);
-                }
-            }
-        }
-        // some other properties are not
-        // in NativeError
-        createProperty(props, 'originalStack');
-        createProperty(props, 'zoneAwareStack');
-        // in IE, stack is not in prototype
-        createProperty(props, 'stack');
-        // define toString, toSource as method property
-        createMethodProperty(props, 'toString');
-        createMethodProperty(props, 'toSource');
-        return props;
-    };
-    var errorProperties = createErrorProperties();
-    // for derived Error class which extends ZoneAwareError
-    // we should not override the derived class's property
-    // so we create a new props object only copy the properties
-    // from errorProperties which not exist in derived Error's prototype
-    var getErrorPropertiesForPrototype = function (prototype) {
-        // if the prototype is ZoneAwareError.prototype
-        // we just return the prebuilt errorProperties.
-        if (prototype === ZoneAwareError.prototype) {
-            return errorProperties;
-        }
-        var newProps = Object.create(null);
-        var cKeys = Object.getOwnPropertyNames(errorProperties);
-        var keys = Object.getOwnPropertyNames(prototype);
-        cKeys.forEach(function (cKey) {
-            if (keys.filter(function (key) {
-                return key === cKey;
-            })
-                .length === 0) {
-                newProps[cKey] = errorProperties[cKey];
-            }
-        });
-        return newProps;
-    };
     // some functions are not easily to be detected here,
     // for example Timeout.ZoneTask.invoke, if we want to detect those functions
     // by detect zone, we have to run all patched APIs, it is too risky
@@ -1033,7 +927,7 @@ var Zone$1 = (function (global) {
         'ZoneTask.invoke', 'ZoneAware', 'getStacktraceWithUncaughtError', 'new LongStackTrace',
         'long-stack-trace'
     ];
-    function attachZoneAndRemoveInternalZoneFrames(error, zoneAwareError) {
+    function attachZoneAndRemoveInternalZoneFrames(error) {
         // Save original stack trace
         error.originalStack = error.stack;
         // Process the stack trace and rewrite the frames.
@@ -1087,7 +981,6 @@ var Zone$1 = (function (global) {
             catch (nonWritableErr) {
                 // in some browser, the error.stack is readonly such as PhantomJS
                 // so we need to store the stack frames to zoneAwareError directly
-                zoneAwareError.stack = finalStack;
             }
         }
     }
@@ -1096,14 +989,7 @@ var Zone$1 = (function (global) {
      * adds zone information to it.
      */
     function ZoneAwareError() {
-        // make sure we have a valid this
-        // if this is undefined(call Error without new) or this is global
-        // or this is some other objects, we should force to create a
-        // valid ZoneAwareError by call Object.create()
-        if (!(this instanceof ZoneAwareError)) {
-            return ZoneAwareError.apply(Object.create(ZoneAwareError.prototype), arguments);
-        }
-        // Create an Error.
+        // We always have to return native error otherwise the browser console will not work.
         var error = NativeError.apply(this, arguments);
         if (!error.stack) {
             // in IE, the error.stack will be undefined
@@ -1116,15 +1002,10 @@ var Zone$1 = (function (global) {
                 error = err;
             }
         }
-        this[__symbol__('error')] = error;
         // 1. attach zone information to stack frame
         // 2. remove zone internal stack frames
-        attachZoneAndRemoveInternalZoneFrames(error, this);
-        // use defineProperties here instead of copy property value
-        // because of issue #595 which will break angular2.
-        var props = getErrorPropertiesForPrototype(Object.getPrototypeOf(this));
-        Object.defineProperties(this, props);
-        return this;
+        attachZoneAndRemoveInternalZoneFrames(error);
+        return error;
     }
     // Copy the prototype so that instanceof operator works as expected
     ZoneAwareError.prototype = NativeError.prototype;
@@ -1258,8 +1139,6 @@ var Zone$1 = (function (global) {
     // 1. IE issue, the error.stack can only be not undefined after throw
     // 2. handle Error(...) without new options
     var throwError = function (message, withNew) {
-        if (withNew === void 0) { withNew = true; }
-        var error;
         try {
             if (withNew) {
                 throw new Error(message);
@@ -1269,9 +1148,8 @@ var Zone$1 = (function (global) {
             }
         }
         catch (err) {
-            error = err;
+            return err;
         }
-        return error;
     };
     var nativeStackTraceLimit = NativeError.stackTraceLimit;
     // in some system/browser, some additional stack frames
@@ -1284,14 +1162,14 @@ var Zone$1 = (function (global) {
     var detectRunFn = function () {
         detectZone.run(function () {
             detectZone.runGuarded(function () {
-                throw throwError('blacklistStackFrames');
+                throw throwError('blacklistStackFrames', true);
             });
         });
     };
     var detectRunWithoutNewFn = function () {
         detectZone.run(function () {
             detectZone.runGuarded(function () {
-                throw throwError('blacklistStackFrames', false);
+                throw throwError('blacklistStackFrames');
             });
         });
     };
@@ -1440,7 +1318,7 @@ var Zone$1 = (function (global) {
     detectZoneWithCallbacks.runGuarded(detectPromiseCaughtWithoutNewFn);
     NativeError.stackTraceLimit = nativeStackTraceLimit;
     return global['Zone'] = Zone;
-})(typeof window === 'object' && window || typeof self === 'object' && self || global);
+})(typeof window !== 'undefined' && window || typeof self !== 'undefined' && self || global);
 
 /**
  * @license
@@ -1849,14 +1727,16 @@ function patchTimer(window, setName, cancelName, nameSuffix) {
     var tasksByHandleId = {};
     function scheduleTask(task) {
         var data = task.data;
-        data.args[0] = function () {
+        function timer() {
             try {
                 task.invoke.apply(this, arguments);
             }
             finally {
                 delete tasksByHandleId[data.handleId];
             }
-        };
+        }
+        
+        data.args[0] = timer;
         data.handleId = setNative.apply(window, data.args);
         tasksByHandleId[data.handleId] = task;
         return task;
@@ -2234,7 +2114,7 @@ function registerElementPatch(_global) {
 var set = 'set';
 var clear = 'clear';
 var blockingMethods = ['alert', 'prompt', 'confirm'];
-var _global = typeof window === 'object' && window || typeof self === 'object' && self || global;
+var _global = typeof window !== 'undefined' && window || typeof self !== 'undefined' && self || global;
 patchTimer(_global, set, clear, 'Timeout');
 patchTimer(_global, set, clear, 'Interval');
 patchTimer(_global, set, clear, 'Immediate');
diff --git a/dist/zone.min.js b/dist/zone.min.js
index 61d50fc36..6b3307c90 100644
--- a/dist/zone.min.js
+++ b/dist/zone.min.js
@@ -1,2 +1,2 @@
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?t():"function"==typeof define&&define.amd?define(t):t()}(this,function(){"use strict";function e(e,t){for(var n=e.length-1;n>=0;n--)"function"==typeof e[n]&&(e[n]=Zone.current.wrap(e[n],t+"_"+n));return e}function t(t,n){for(var r=t.constructor.name,o=function(o){var a=n[o],i=t[a];i&&(t[a]=function(t){return function(){return t.apply(this,e(arguments,r+"."+a))}}(i))},a=0;a<n.length;a++)o(a)}function n(e,t){var n=Object.getOwnPropertyDescriptor(e,t)||{enumerable:!0,configurable:!0},r=Object.getOwnPropertyDescriptor(e,"original"+t);!r&&n.get&&Object.defineProperty(e,"original"+t,{enumerable:!1,configurable:!0,get:n.get}),delete n.writable,delete n.value;var o=t.substr(2),a=z("_"+t);n.set=function(e){if(this[a]&&this.removeEventListener(o,this[a]),"function"==typeof e){var t=function(t){var n;n=e.apply(this,arguments),void 0==n||n||t.preventDefault()};this[a]=t,this.addEventListener(o,t,!1)}else this[a]=null},n.get=function(){var e=this[a]||null;return null===e&&r&&r.get&&(e=r.get.apply(this,arguments),e&&(n.set.apply(this,[e]),"function"==typeof this.removeAttribute&&this.removeAttribute(t))),this[a]||null},Object.defineProperty(e,t,n)}function r(e,t){var r=[];for(var o in e)"on"==o.substr(0,2)&&r.push(o);for(var a=0;a<r.length;a++)n(e,r[a]);if(t)for(var i=0;i<t.length;i++)n(e,"on"+t[i])}function o(e,t,n,r,o){var a=e[I];if(a)for(var i=0;i<a.length;i++){var u=a[i],s=u.data,c=s.handler;if((s.handler===t||c.listener===t)&&s.useCapturing===r&&s.eventName===n)return o&&a.splice(i,1),u}return null}function a(e,t,n){var r=e[I];r||(r=e[I]=[]),n?r.unshift(t):r.push(t)}function i(e,t,n,r,i,u){function s(e){var t=e.data;return a(t.target,e,i),t.invokeAddFunc(l,e)}function c(e){var t=e.data;return o(t.target,e.invoke,t.eventName,t.useCapturing,!0),t.invokeRemoveFunc(f,e)}void 0===n&&(n=!0),void 0===r&&(r=!1),void 0===i&&(i=!1),void 0===u&&(u=F);var l=z(e),f=z(t),h=!n&&void 0;return function(t,n){var a=u(t,n);a.useCapturing=a.useCapturing||h;var i=null;"function"==typeof a.handler?i=a.handler:a.handler&&a.handler.handleEvent&&(i=function(e){return a.handler.handleEvent(e)});var f=!1;try{f=a.handler&&"[object FunctionWrapper]"===a.handler.toString()}catch(p){return}if(!i||f)return a.invokeAddFunc(l,a.handler);if(!r){var d=o(a.target,a.handler,a.eventName,a.useCapturing,!1);if(d)return a.invokeAddFunc(l,d)}var k=Zone.current,v=a.target.constructor.name+"."+e+":"+a.eventName;k.scheduleEventTask(v,i,a,s,c)}}function u(e,t,n){void 0===t&&(t=!0),void 0===n&&(n=F);var r=z(e),a=!t&&void 0;return function(e,t){var i=n(e,t);i.useCapturing=i.useCapturing||a;var u=o(i.target,i.handler,i.eventName,i.useCapturing,!0);u?u.zone.cancelTask(u):i.invokeRemoveFunc(r,i.handler)}}function s(e,t,n,r){return void 0===t&&(t=L),void 0===n&&(n=M),void 0===r&&(r=F),!(!e||!e[t])&&(f(e,t,function(){return i(t,n,!0,!1,!1,r)}),f(e,n,function(){return u(n,!0,r)}),!0)}function c(t){var n=P[t];if(n){P[t]=function(){var r=e(arguments,t);switch(r.length){case 0:this[H]=new n;break;case 1:this[H]=new n(r[0]);break;case 2:this[H]=new n(r[0],r[1]);break;case 3:this[H]=new n(r[0],r[1],r[2]);break;case 4:this[H]=new n(r[0],r[1],r[2],r[3]);break;default:throw new Error("Arg list too long.")}};var r,o=new n(function(){});for(r in o)"XMLHttpRequest"===t&&"responseBlob"===r||!function(e){"function"==typeof o[e]?P[t].prototype[e]=function(){return this[H][e].apply(this[H],arguments)}:Object.defineProperty(P[t].prototype,e,{set:function(n){"function"==typeof n?this[H][e]=Zone.current.wrap(n,t+"."+e):this[H][e]=n},get:function(){return this[H][e]}})}(r);for(r in n)"prototype"!==r&&n.hasOwnProperty(r)&&(P[t][r]=n[r])}}function l(e,t){try{return Function("f","return function "+e+"(){return f(this, arguments)}")(t)}catch(n){return function(){return t(this,arguments)}}}function f(e,t,n){for(var r=e;r&&Object.getOwnPropertyNames(r).indexOf(t)===-1;)r=Object.getPrototypeOf(r);!r&&e[t]&&(r=e);var o,a=z(t);return r&&!(o=r[a])&&(o=r[a]=r[t],r[t]=l(t,n(o,a,t))),o}function h(e,t){var n=e[z("eventTasks")],r=[];if(n)for(var o=0;o<n.length;o++){var a=n[o],i=a.data,u=i&&i.eventName;u===t&&r.push(a)}return r}function p(e,t,n,r){function o(t){var n=t.data;return n.args[0]=function(){try{t.invoke.apply(this,arguments)}finally{delete s[n.handleId]}},n.handleId=i.apply(e,n.args),s[n.handleId]=t,t}function a(e){return delete s[e.data.handleId],u(e.data.handleId)}var i=null,u=null;t+=r,n+=r;var s={};i=f(e,t,function(n){return function(i,u){if("function"==typeof u[0]){var s=Zone.current,c={handleId:null,isPeriodic:"Interval"===r,delay:"Timeout"===r||"Interval"===r?u[1]||0:null,args:u},l=s.scheduleMacroTask(t,u[0],c,o,a);if(!l)return l;var f=l.data.handleId;return f&&f.ref&&f.unref&&"function"==typeof f.ref&&"function"==typeof f.unref&&(l.ref=f.ref.bind(f),l.unref=f.unref.bind(f)),l}return n.apply(e,u)}}),u=f(e,n,function(t){return function(n,r){var o="number"==typeof r[0]?s[r[0]]:r[0];o&&"string"==typeof o.type?"notScheduled"!==o.state&&(o.cancelFn&&o.data.isPeriodic||0===o.runCount)&&o.zone.cancelTask(o):t.apply(e,r)}})}function d(){Object.defineProperty=function(e,t,n){if(v(e,t))throw new TypeError("Cannot assign to read only property '"+t+"' of "+e);var r=n.configurable;return"prototype"!==t&&(n=g(e,t,n)),y(e,t,n,r)},Object.defineProperties=function(e,t){return Object.keys(t).forEach(function(n){Object.defineProperty(e,n,t[n])}),e},Object.create=function(e,t){return"object"!=typeof t||Object.isFrozen(t)||Object.keys(t).forEach(function(n){t[n]=g(e,n,t[n])}),A(e,t)},Object.getOwnPropertyDescriptor=function(e,t){var n=x(e,t);return v(e,t)&&(n.configurable=!1),n}}function k(e,t,n){var r=n.configurable;return n=g(e,t,n),y(e,t,n,r)}function v(e,t){return e&&e[q]&&e[q][t]}function g(e,t,n){return n.configurable=!0,n.configurable||(e[q]||R(e,q,{writable:!0,value:{}}),e[q][t]=!0),n}function y(e,t,n,r){try{return R(e,t,n)}catch(o){if(!n.configurable)throw o;"undefined"==typeof r?delete n.configurable:n.configurable=r;try{return R(e,t,n)}catch(o){var a=null;try{a=JSON.stringify(n)}catch(o){a=a.toString()}console.log("Attempting to configure '"+t+"' with descriptor '"+a+"' on object '"+e+"' and got error, giving up: "+o)}}}function T(e){var t=[],n=e.wtf;n?t=G.split(",").map(function(e){return"HTML"+e+"Element"}).concat(N):e[B]?t.push(B):t=N;for(var r=0;r<t.length;r++){var o=e[t[r]];s(o&&o.prototype)}}function m(e){var t=e.WebSocket;e.EventTarget||s(t.prototype),e.WebSocket=function(e,n){var o,a=arguments.length>1?new t(e,n):new t(e),i=Object.getOwnPropertyDescriptor(a,"onmessage");return i&&i.configurable===!1?(o=Object.create(a),["addEventListener","removeEventListener","send","close"].forEach(function(e){o[e]=function(){return a[e].apply(a,arguments)}})):o=a,r(o,["close","error","message","open"]),o};for(var n in t)e.WebSocket[n]=t[n]}function b(e){if(!j||D){var t="undefined"!=typeof WebSocket;w()?(C&&r(HTMLElement.prototype,W),r(XMLHttpRequest.prototype,null),"undefined"!=typeof IDBIndex&&(r(IDBIndex.prototype,null),r(IDBRequest.prototype,null),r(IDBOpenDBRequest.prototype,null),r(IDBDatabase.prototype,null),r(IDBTransaction.prototype,null),r(IDBCursor.prototype,null)),t&&r(WebSocket.prototype,null)):(_(),c("XMLHttpRequest"),t&&m(e))}}function w(){if((C||D)&&!Object.getOwnPropertyDescriptor(HTMLElement.prototype,"onclick")&&"undefined"!=typeof Element){var e=Object.getOwnPropertyDescriptor(Element.prototype,"onclick");if(e&&!e.configurable)return!1}var t=Object.getOwnPropertyDescriptor(XMLHttpRequest.prototype,"onreadystatechange");Object.defineProperty(XMLHttpRequest.prototype,"onreadystatechange",{enumerable:!0,configurable:!0,get:function(){return!0}});var n=new XMLHttpRequest,r=!!n.onreadystatechange;return Object.defineProperty(XMLHttpRequest.prototype,"onreadystatechange",t||{}),r}function _(){for(var e=function(e){var t=W[e],n="on"+t;self.addEventListener(t,function(e){var t,r,o=e.target;for(r=o?o.constructor.name+"."+n:"unknown."+n;o;)o[n]&&!o[n][X]&&(t=Zone.current.wrap(o[n],r),t[X]=o[n],o[n]=t),o=o.parentElement},!0)},t=0;t<W.length;t++)e(t)}function S(e){if((C||D)&&"registerElement"in e.document){var t=document.registerElement,n=["createdCallback","attachedCallback","detachedCallback","attributeChangedCallback"];document.registerElement=function(e,r){return r&&r.prototype&&n.forEach(function(e){var t="Document.registerElement::"+e;if(r.prototype.hasOwnProperty(e)){var n=Object.getOwnPropertyDescriptor(r.prototype,e);n&&n.value?(n.value=Zone.current.wrap(n.value,t),k(r.prototype,e,n)):r.prototype[e]=Zone.current.wrap(r.prototype[e],t)}else 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n=t.shift(),r=n.trim().split("[")[0].trim();/:\d+:\d+/.test(r)&&!re.hasOwnProperty(r)&&(re[r]=te.blackList);var o=n.split("(")[0].split("@")[0];if(o.indexOf("runGuarded")!==-1)break;if(o.indexOf("runTask")!==-1)break}}if(e.Zone)throw new Error("Zone already loaded.");var T={name:"NO ZONE"},m="notScheduled",b="scheduling",w="scheduled",_="running",S="canceling",E="unknown",O="microTask",z="macroTask",P="eventTask",Z=function(){function t(e,t){this._properties=null,this._parent=e,this._name=t?t.name||"unnamed":"<root>",this._properties=t&&t.properties||{},this._zoneDelegate=new C(this,this._parent&&this._parent._zoneDelegate,t)}return t.assertZonePatched=function(){if(e.Promise!==Q)throw new Error("Zone.js has detected that ZoneAwarePromise `(window|global).Promise` has been overwritten.\nMost likely cause is that a Promise polyfill has been loaded after Zone.js (Polyfilling Promise api is not necessary when zone.js is loaded. 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i(){if(!A){for(A=!0;x.length;){var e=x;x=[];for(var t=0;t<e.length;t++){var n=e[t];try{n.zone.runTask(n,null,null)}catch(r){o(r)}}}for(;q.length;)for(var i=function(){var e=q.shift();try{e.zone.runGuarded(function(){throw e})}catch(t){a(t)}};q.length;)i();A=!1}}function u(e){return e&&e.then}function s(e){return e}function c(e){return Q.reject(e)}function l(e,t){return function(n){try{f(e,t,n)}catch(r){f(e,!1,r)}}}function f(e,r,o){var a=J();if(e===o)throw new TypeError("Promise resolved with itself");if(e[B]===X){var i=null;try{"object"!=typeof o&&"function"!=typeof o||(i=o&&o.then)}catch(u){return a(function(){f(e,!1,u)})(),e}if(r!==K&&o instanceof Q&&o.hasOwnProperty(B)&&o.hasOwnProperty(N)&&o[B]!==X)h(o),f(e,o[B],o[N]);else if(r!==K&&"function"==typeof i)try{i.apply(o,[a(l(e,r)),a(l(e,!1))])}catch(u){a(function(){f(e,!1,u)})()}else{e[B]=r;var s=e[N];e[N]=o,r===K&&o instanceof Error&&(o[t("currentTask")]=C.currentTask);for(var c=0;c<s.length;)p(e,s[c++],s[c++],s[c++],s[c++]);if(0==s.length&&r==K){e[B]=V;try{throw new Error("Uncaught (in promise): "+o+(o&&o.stack?"\n"+o.stack:""))}catch(u){var d=u;d.rejection=o,d.promise=e,d.zone=C.current,d.task=C.currentTask,q.push(d),n()}}}}return e}function h(e){if(e[B]===V){try{var n=C[t("rejectionHandledHandler")];n&&"function"==typeof n&&n.apply(this,[{rejection:e[N],promise:e}])}catch(r){}e[B]=K;for(var o=0;o<q.length;o++)e===q[o].promise&&q.splice(o,1)}}function p(e,t,n,r,o){h(e);var a=e[B]?"function"==typeof r?r:s:"function"==typeof o?o:c;t.scheduleMicroTask(W,function(){try{f(n,!0,t.run(a,void 0,[e[N]]))}catch(r){f(n,!1,r)}})}function d(e){var t=e.prototype,n=t.then;t[F]=n,e.prototype.then=function(e,t){var r=this,o=new Q(function(e,t){n.call(r,e,t)});return o.then(e,t)},e[$]=!0}function k(e){return function(){var t=e.apply(this,arguments);if(t instanceof Q)return t;var n=t.constructor;return n[$]||d(n),t}}function v(e){if(e.originalStack=e.stack,g[ae]&&e.originalStack){for(var t=e.originalStack.split("\n"),n=H,r=0;r<t.length&&0===oe.filter(function(e){return e.trim()===t[r].trim()}).length;)r++;for(var o=function(){var e=t[r].trim();if(e){var o=re.hasOwnProperty(e)&&re[e];o===te.blackList?(t.splice(r,1),r--):ie.filter(function(t){return e.toLowerCase().indexOf(t.toLowerCase())!==-1}).length>0?(t.splice(r,1),r--):o===te.transition?(n=n.parent?n.parent:null,t.splice(r,1),r--):t[r]+=" ["+n.zone.name+"]"}};r<t.length&&n;r++)o();var a=t.join("\n");try{e.stack=e.zoneAwareStack=a}catch(i){}}}function g(){var e=ne.apply(this,arguments);if(!e.stack)try{throw e}catch(t){e=t}return v(e),e}function y(e){for(var t=e.stack?e.stack.split(/\n/):[];t.length;){var n=t.shift(),r=n.trim().split("[")[0].trim();/:\d+:\d+/.test(r)&&!re.hasOwnProperty(r)&&(re[r]=te.blackList);var o=n.split("(")[0].split("@")[0];if(o.indexOf("runGuarded")!==-1)break;if(o.indexOf("runTask")!==-1)break}}if(e.Zone)throw new Error("Zone 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If you must load one, do so before loading zone.js.)")},Object.defineProperty(t,"root",{get:function(){for(var e=t.current;e.parent;)e=e.parent;return e},enumerable:!0,configurable:!0}),Object.defineProperty(t,"current",{get:function(){return H.zone},enumerable:!0,configurable:!0}),Object.defineProperty(t,"currentTask",{get:function(){return R},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"parent",{get:function(){return this._parent},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"name",{get:function(){return this._name},enumerable:!0,configurable:!0}),t.prototype.get=function(e){var t=this.getZoneWith(e);if(t)return t._properties[e]},t.prototype.getZoneWith=function(e){for(var t=this;t;){if(t._properties.hasOwnProperty(e))return t;t=t._parent}return null},t.prototype.fork=function(e){if(!e)throw new Error("ZoneSpec required!");return this._zoneDelegate.fork(this,e)},t.prototype.wrap=function(e,t){if("function"!=typeof e)throw new Error("Expecting function got: "+e);var n=this._zoneDelegate.intercept(this,e,t),r=this;return function(){return r.runGuarded(n,this,arguments,t)}},t.prototype.run=function(e,t,n,r){void 0===t&&(t=void 0),void 0===n&&(n=null),void 0===r&&(r=null),H=new I(H,this);try{return this._zoneDelegate.invoke(this,e,t,n,r)}finally{H=H.parent}},t.prototype.runGuarded=function(e,t,n,r){void 0===t&&(t=null),void 0===n&&(n=null),void 0===r&&(r=null),H=new I(H,this);try{try{return this._zoneDelegate.invoke(this,e,t,n,r)}catch(o){if(this._zoneDelegate.handleError(this,o))throw o}}finally{H=H.parent}},t.prototype.runTask=function(e,t,n){if(e.zone!=this)throw new Error("A task can only be run in the zone of creation! 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r=n&&n.onHasTask,o=t&&t._hasTaskZS;(r||o)&&(this._hasTaskZS=r?n:D,this._hasTaskDlgt=t,this._hasTaskDlgtOwner=this,this._hasTaskCurrZone=e,n.onScheduleTask||(this._scheduleTaskZS=D,this._scheduleTaskDlgt=t,this._scheduleTaskCurrZone=this.zone),n.onInvokeTask||(this._invokeTaskZS=D,this._invokeTaskDlgt=t,this._invokeTaskCurrZone=this.zone),n.onCancelTask||(this._cancelTaskZS=D,this._cancelTaskDlgt=t,this._cancelTaskCurrZone=this.zone))}return e.prototype.fork=function(e,t){return this._forkZS?this._forkZS.onFork(this._forkDlgt,this.zone,e,t):new C(e,t)},e.prototype.intercept=function(e,t,n){return this._interceptZS?this._interceptZS.onIntercept(this._interceptDlgt,this._interceptCurrZone,e,t,n):t},e.prototype.invoke=function(e,t,n,r,o){return this._invokeZS?this._invokeZS.onInvoke(this._invokeDlgt,this._invokeCurrZone,e,t,n,r,o):t.apply(n,r)},e.prototype.handleError=function(e,t){return!this._handleErrorZS||this._handleErrorZS.onHandleError(this._handleErrorDlgt,this._handleErrorCurrZone,e,t)},e.prototype.scheduleTask=function(e,t){var n=t;if(this._scheduleTaskZS)this._hasTaskZS&&n._zoneDelegates.push(this._hasTaskDlgtOwner),n=this._scheduleTaskZS.onScheduleTask(this._scheduleTaskDlgt,this._scheduleTaskCurrZone,e,t),n||(n=t);else if(t.scheduleFn)t.scheduleFn(t);else{if(t.type!=O)throw new Error("Task is missing scheduleFn.");r(t)}return n},e.prototype.invokeTask=function(e,t,n,r){return this._invokeTaskZS?this._invokeTaskZS.onInvokeTask(this._invokeTaskDlgt,this._invokeTaskCurrZone,e,t,n,r):t.callback.apply(n,r)},e.prototype.cancelTask=function(e,t){var n;if(this._cancelTaskZS)n=this._cancelTaskZS.onCancelTask(this._cancelTaskDlgt,this._cancelTaskCurrZone,e,t);else{if(!t.cancelFn)throw Error("Task is not 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this._state},enumerable:!0,configurable:!0}),e.prototype.cancelScheduleRequest=function(){this._transitionTo(m,b)},e.prototype._transitionTo=function(e,t,n){if(this._state!==t&&this._state!==n)throw new Error(this.type+" '"+this.source+"': can not transition to '"+e+"', expecting state '"+t+"'"+(n?" or '"+n+"'":"")+", was '"+this._state+"'.");this._state=e,e==m&&(this._zoneDelegates=null)},e.prototype.toString=function(){return this.data&&"undefined"!=typeof this.data.handleId?this.data.handleId:Object.prototype.toString.call(this)},e.prototype.toJSON=function(){return{type:this.type,state:this.state,source:this.source,data:this.data,zone:this.zone.name,invoke:this.invoke,scheduleFn:this.scheduleFn,cancelFn:this.cancelFn,runCount:this.runCount,callback:this.callback}},e}(),I=function(){function e(e,t){this.parent=e,this.zone=t}return e}(),L=t("setTimeout"),M=t("Promise"),F=t("then"),H=new I(null,new C(null,null)),R=null,x=[],A=!1,q=[],G=0,B=t("state"),N=t("value"),W="Promise.then",X=null,U=!0,K=!1,V=0,J=function(){var e=!1;return function(t){return function(){e||(e=!0,t.apply(null,arguments))}}},Q=function(){function e(t){var n=this;if(!(n instanceof e))throw new Error("Must be an instanceof Promise.");n[B]=X,n[N]=[];try{t&&t(l(n,U),l(n,K))}catch(r){f(n,!1,r)}}return e.toString=function(){return"function ZoneAwarePromise() { [native code] }"},e.resolve=function(e){return f(new this(null),U,e)},e.reject=function(e){return f(new this(null),K,e)},e.race=function(e){function t(e){a&&(a=r(e))}function n(e){a&&(a=o(e))}for(var r,o,a=new this(function(e,t){n=[e,t],r=n[0],o=n[1];var n}),i=0,s=e;i<s.length;i++){var c=s[i];u(c)||(c=this.resolve(c)),c.then(t,n)}return a},e.all=function(e){for(var t,n,r=new this(function(e,r){t=e,n=r}),o=0,a=[],i=0,s=e;i<s.length;i++){var c=s[i];u(c)||(c=this.resolve(c)),c.then(function(e){return function(n){a[e]=n,o--,o||t(a)}}(o),n),o++}return o||t(a),r},e.prototype.then=function(e,t){var n=new this.constructor(null),r=C.current;return this[B]==X?this[N].push(r,n,e,t):p(this,r,n,e,t),n},e.prototype["catch"]=function(e){return this.then(null,e)},e}();Q.resolve=Q.resolve,Q.reject=Q.reject,Q.race=Q.race,Q.all=Q.all;var Y=e[M]=e.Promise;e.Promise=Q;var $=t("thenPatched");if(Y){d(Y);var ee=e.fetch;"function"==typeof ee&&(e.fetch=k(ee))}Promise[C.__symbol__("uncaughtPromiseErrors")]=q;var te;!function(e){e[e.blackList=0]="blackList",e[e.transition=1]="transition"}(te||(te={}));var ne=e[t("Error")]=e.Error,re={},oe=[];e.Error=g;var ae="stackRewrite",ie=["ZoneTask.invoke","ZoneAware","getStacktraceWithUncaughtError","new LongStackTrace","long-stack-trace"];g.prototype=ne.prototype,g[C.__symbol__("blacklistedStackFrames")]=re,g[ae]=!1;var ue=["stackTraceLimit","captureStackTrace","prepareStackTrace"],se=Object.keys(ne);se&&se.forEach(function(e){0===ue.filter(function(t){return t===e}).length&&Object.defineProperty(g,e,{get:function(){return ne[e]},set:function(t){ne[e]=t}})}),ne.hasOwnProperty("stackTraceLimit")&&(ne.stackTraceLimit=Math.max(ne.stackTraceLimit,15),Object.defineProperty(g,"stackTraceLimit",{get:function(){return ne.stackTraceLimit},set:function(e){return ne.stackTraceLimit=e}})),ne.hasOwnProperty("captureStackTrace")&&Object.defineProperty(g,"captureStackTrace",{value:function(e,t){ne.captureStackTrace(e,t)}}),Object.defineProperty(g,"prepareStackTrace",{get:function(){return ne.prepareStackTrace},set:function(e){return e&&"function"==typeof e?ne.prepareStackTrace=function(t,n){if(n)for(var r=0;r<n.length;r++){var o=n[r];if("zoneCaptureStackTrace"===o.getFunctionName()){n.splice(r,1);break}}return e.apply(this,[t,n])}:ne.prepareStackTrace=e}});var ce=C.current.fork({name:"detect",onInvoke:function(e,t,n,r,o,a,i){return e.invoke(n,r,o,a,i)},onHandleError:function(e,t,n,r){if(r.originalStack&&Error===g)for(var o=r.originalStack.split(/\n/),a=!1,i=!1,u=!1;o.length;){var s=o.shift();if(/:\d+:\d+/.test(s)){var c=s.split("(")[0].split("@")[0],l=te.transition;if(c.indexOf("ZoneAwareError")!==-1&&oe.push(s),c.indexOf("runGuarded")!==-1?i=!0:c.indexOf("runTask")!==-1?u=!0:c.indexOf("run")!==-1?a=!0:l=te.blackList,re[s.trim()]=l,a&&i&&u){g[ae]=!0;break}}}return!1}}),le=function(e,t){try{throw t?new Error(e):Error(e)}catch(n){return n}},fe=ne.stackTraceLimit;ne.stackTraceLimit=100;var he=function(){ce.run(function(){ce.runGuarded(function(){throw le("blacklistStackFrames",!0)})})},pe=function(){ce.run(function(){ce.runGuarded(function(){throw le("blacklistStackFrames")})})};ce.runTask(ce.scheduleMacroTask("detect",he,null,function(){return null},null)),ce.runTask(ce.scheduleMacroTask("detect",pe,null,function(){return null},null));var de=C.root.fork({name:"detectEmptyZone",onHandleError:function(e,t,n,r){return e.handleError(n,r),y(r),!1}}),ke=C.root.fork({name:"detectCallbackZone",onFork:function(e,t,n,r){return y(le("onFork")),y(le("onFork",!1)),e.fork(n,r)},onIntercept:function(e,t,n,r,o){return y(le("onIntercept")),y(le("onIntercept",!1)),e.intercept(n,r,o)},onInvoke:function(e,t,n,r,o,a,i){return y(le("onInvoke")),y(le("onInvoke",!1)),e.invoke(n,r,o,a,i)},onScheduleTask:function(e,t,n,r){return y(le("onScheduleTask")),y(le("onScheduleTask",!1)),e.scheduleTask(n,r)},onInvokeTask:function(e,t,n,r,o,a){return y(le("onInvokeTask")),y(le("onInvokeTask",!1)),e.invokeTask(n,r,o,a)},onCancelTask:function(e,t,n,r){return y(le("onCancelTask")),y(le("onCancelTask",!1)),e.cancelTask(n,r)},onHasTask:function(e,t,n,r){return y(le("onHasTask")),y(le("onHasTask",!1)),e.hasTask(n,r)},onHandleError:function(e,t,n,r){return e.handleError(n,r),y(r),!1}}),ve=function(){throw le("zoneAwareFrames")},ge=function(){throw le("zoneAwareFrames",!1)},ye=function(){new Promise(function(e,t){t(le("zoneAwareFrames"))})},Te=function(){new Promise(function(e,t){t(le("zoneAwareFrames",!1))})},me=function(){var e=new Promise(function(e,t){t(le("zoneAwareFrames"))});e["catch"](function(e){throw e})},be=function(){var e=new Promise(function(e,t){t(le("zoneAwareFrames",!1))});e["catch"](function(e){throw e})};return de.runTask(de.scheduleEventTask("detect",ve,null,function(){return null},null)),ke.runTask(ke.scheduleEventTask("detect",ve,null,function(){return null},null)),de.runTask(de.scheduleMacroTask("detect",ve,null,function(){return null},null)),ke.runTask(ke.scheduleMacroTask("detect",ve,null,function(){return null},null)),de.runTask(de.scheduleMicroTask("detect",ve,null,function(){return null})),ke.runTask(ke.scheduleMicroTask("detect",ve,null,function(){return null})),de.runGuarded(function(){de.run(ve)}),ke.runGuarded(function(){de.run(ve)}),de.runTask(de.scheduleEventTask("detect",ge,null,function(){return null},null)),ke.runTask(ke.scheduleEventTask("detect",ge,null,function(){return null},null)),de.runTask(de.scheduleMacroTask("detect",ge,null,function(){return null},null)),ke.runTask(ke.scheduleMacroTask("detect",ge,null,function(){return null},null)),de.runTask(de.scheduleMicroTask("detect",ge,null,function(){return null})),ke.runTask(ke.scheduleMicroTask("detect",ge,null,function(){return null})),de.runGuarded(function(){de.run(ge)}),ke.runGuarded(function(){de.run(ge)}),de.runGuarded(ye),ke.runGuarded(ye),de.runGuarded(Te),ke.runGuarded(Te),de.runGuarded(me),ke.runGuarded(me),de.runGuarded(be),ke.runGuarded(be),ne.stackTraceLimit=fe,e.Zone=C}("undefined"!=typeof window&&window||"undefined"!=typeof self&&self||global),function(e){return"__zone_symbol__"+e}),z="object"==typeof window&&window||"object"==typeof self&&self||global,C="undefined"!=typeof WorkerGlobalScope&&self instanceof WorkerGlobalScope,D=!("nw"in z)&&"undefined"!=typeof process&&"[object process]"==={}.toString.call(process),P=!D&&!C&&!("undefined"==typeof window||!window.HTMLElement),j="undefined"!=typeof process&&"[object process]"==={}.toString.call(process)&&!C&&!("undefined"==typeof window||!window.HTMLElement),I=Z("eventTasks"),L="addEventListener",M="removeEventListener",F=function(e,t){return{useCapturing:t[2],eventName:t[0],handler:t[1],target:e||z,name:t[0],invokeAddFunc:function(e,t){return t&&t.invoke?this.target[e](this.eventName,t.invoke,this.useCapturing):this.target[e](this.eventName,t,this.useCapturing)},invokeRemoveFunc:function(e,t){return t&&t.invoke?this.target[e](this.eventName,t.invoke,this.useCapturing):this.target[e](this.eventName,t,this.useCapturing)}}},H=(i(L,M),u(M),Z("originalInstance"));Zone[Z("patchEventTargetMethods")]=s,Zone[Z("patchOnProperties")]=r;var R=Object[Z("defineProperty")]=Object.defineProperty,x=Object[Z("getOwnPropertyDescriptor")]=Object.getOwnPropertyDescriptor,A=Object.create,q=Z("unconfigurables"),G="Anchor,Area,Audio,BR,Base,BaseFont,Body,Button,Canvas,Content,DList,Directory,Div,Embed,FieldSet,Font,Form,Frame,FrameSet,HR,Head,Heading,Html,IFrame,Image,Input,Keygen,LI,Label,Legend,Link,Map,Marquee,Media,Menu,Meta,Meter,Mod,OList,Object,OptGroup,Option,Output,Paragraph,Pre,Progress,Quote,Script,Select,Source,Span,Style,TableCaption,TableCell,TableCol,Table,TableRow,TableSection,TextArea,Title,Track,UList,Unknown,Video",B="ApplicationCache,EventSource,FileReader,InputMethodContext,MediaController,MessagePort,Node,Performance,SVGElementInstance,SharedWorker,TextTrack,TextTrackCue,TextTrackList,WebKitNamedFlow,Window,Worker,WorkerGlobalScope,XMLHttpRequest,XMLHttpRequestEventTarget,XMLHttpRequestUpload,IDBRequest,IDBOpenDBRequest,IDBDatabase,IDBTransaction,IDBCursor,DBIndex,WebSocket".split(","),N="EventTarget",W="copy cut paste abort blur focus canplay canplaythrough change click contextmenu dblclick drag dragend dragenter dragleave dragover dragstart drop durationchange emptied ended input invalid keydown keypress keyup load loadeddata loadedmetadata loadstart message mousedown mouseenter mouseleave mousemove mouseout mouseover mouseup pause play playing progress ratechange reset scroll seeked seeking select show stalled submit suspend timeupdate volumechange waiting mozfullscreenchange mozfullscreenerror mozpointerlockchange mozpointerlockerror error webglcontextrestored webglcontextlost webglcontextcreationerror".split(" "),X=Z("unbound"),U="set",K="clear",V=["alert","prompt","confirm"],J="undefined"!=typeof window&&window||"undefined"!=typeof self&&self||global;
+p(J,U,K,"Timeout"),p(J,U,K,"Interval"),p(J,U,K,"Immediate"),p(J,"request","cancel","AnimationFrame"),p(J,"mozRequest","mozCancel","AnimationFrame"),p(J,"webkitRequest","webkitCancel","AnimationFrame");for(var Q=0;Q<V.length;Q++){var Y=V[Q];f(J,Y,function(e,t,n){return function(t,r){return Zone.current.run(e,J,r,n)}})}T(J);var $=J.XMLHttpRequestEventTarget;$&&$.prototype&&s($.prototype),b(J),c("MutationObserver"),c("WebKitMutationObserver"),c("FileReader"),d(),E(J),S(J);var ee=Z("xhrTask"),te=Z("xhrSync"),ne=Z("xhrListener"),re=Z("xhrScheduled");J.navigator&&J.navigator.geolocation&&t(J.navigator.geolocation,["getCurrentPosition","watchPosition"]),J.PromiseRejectionEvent&&(Zone[Z("unhandledPromiseRejectionHandler")]=O("unhandledrejection"),Zone[Z("rejectionHandledHandler")]=O("rejectionhandled"))});
\ No newline at end of file
diff --git a/package.json b/package.json
index 401ce8791..9c2d31a08 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "zone.js",
-  "version": "0.8.3",
+  "version": "0.8.4",
   "description": "Zones for JavaScript",
   "main": "dist/zone-node.js",
   "browser": "dist/zone.js",