diff --git a/dist/fake-async-test.js b/dist/fake-async-test.js
index 2d73d419c..7d0dd4d22 100644
--- a/dist/fake-async-test.js
+++ b/dist/fake-async-test.js
@@ -98,7 +98,7 @@
             return function () {
                 var args = [];
                 for (var _i = 0; _i < arguments.length; _i++) {
-                    args[_i - 0] = arguments[_i];
+                    args[_i] = arguments[_i];
                 }
                 fn.apply(global, args);
                 if (_this._lastError === null) {
diff --git a/dist/mocha-patch.js b/dist/mocha-patch.js
index 200949e09..1cef4519a 100644
--- a/dist/mocha-patch.js
+++ b/dist/mocha-patch.js
@@ -41,7 +41,7 @@
         it: Mocha.it
     };
     function modifyArguments(args, syncTest, asyncTest) {
-        var _loop_1 = function(i) {
+        var _loop_1 = function (i) {
             var arg = args[i];
             if (typeof arg === 'function') {
                 // The `done` callback is only passed through if the function expects at
diff --git a/dist/wtf.js b/dist/wtf.js
index 207bb9db0..e61ce8d59 100644
--- a/dist/wtf.js
+++ b/dist/wtf.js
@@ -87,13 +87,13 @@
             return retValue;
         };
         
-        WtfZoneSpec.forkInstance = wtfEnabled && wtfEvents.createInstance('Zone:fork(ascii zone, ascii newZone)');
-        WtfZoneSpec.scheduleInstance = {};
-        WtfZoneSpec.cancelInstance = {};
-        WtfZoneSpec.invokeScope = {};
-        WtfZoneSpec.invokeTaskScope = {};
         return WtfZoneSpec;
     }());
+    WtfZoneSpec.forkInstance = wtfEnabled && wtfEvents.createInstance('Zone:fork(ascii zone, ascii newZone)');
+    WtfZoneSpec.scheduleInstance = {};
+    WtfZoneSpec.cancelInstance = {};
+    WtfZoneSpec.invokeScope = {};
+    WtfZoneSpec.invokeTaskScope = {};
     function shallowObj(obj, depth) {
         if (!depth)
             return null;
diff --git a/dist/wtf.min.js b/dist/wtf.min.js
index 32c1f633e..b835d0ef4 100644
--- a/dist/wtf.min.js
+++ b/dist/wtf.min.js
@@ -1 +1 @@
-!function(e,n){"object"==typeof exports&&"undefined"!=typeof module?n():"function"==typeof define&&define.amd?define(n):n()}(this,function(){"use strict";!function(e){function n(e,o){if(!o)return null;var t={};for(var c in e)if(e.hasOwnProperty(c)){var a=e[c];switch(typeof a){case"object":var r=a&&a.constructor&&a.constructor.name;a=r==Object.name?n(a,o-1):r;break;case"function":a=a.name||void 0}t[c]=a}return t}function o(e){var n=e.name;for(e=e.parent;null!=e;)n=e.name+"::"+n,e=e.parent;return n}var t=null,c=null,a=function(){var n=e.wtf;return!(!n||!(t=n.trace))&&(c=t.events,!0)}(),r=function(){function e(){this.name="WTF"}return e.prototype.onFork=function(n,t,c,a){var r=n.fork(c,a);return e.forkInstance(o(c),r.name),r},e.prototype.onInvoke=function(n,a,r,i,s,u,f){var p=e.invokeScope[f];return p||(p=e.invokeScope[f]=c.createScope("Zone:invoke:"+f+"(ascii zone)")),t.leaveScope(p(o(r)),n.invoke(r,i,s,u,f))},e.prototype.onHandleError=function(e,n,o,t){return e.handleError(o,t)},e.prototype.onScheduleTask=function(t,a,r,i){var s=i.type+":"+i.source,u=e.scheduleInstance[s];u||(u=e.scheduleInstance[s]=c.createInstance("Zone:schedule:"+s+"(ascii zone, any data)"));var f=t.scheduleTask(r,i);return u(o(r),n(i.data,2)),f},e.prototype.onInvokeTask=function(n,a,r,i,s,u){var f=i.source,p=e.invokeTaskScope[f];return p||(p=e.invokeTaskScope[f]=c.createScope("Zone:invokeTask:"+f+"(ascii zone)")),t.leaveScope(p(o(r)),n.invokeTask(r,i,s,u))},e.prototype.onCancelTask=function(t,a,r,i){var s=i.source,u=e.cancelInstance[s];u||(u=e.cancelInstance[s]=c.createInstance("Zone:cancel:"+s+"(ascii zone, any options)"));var f=t.cancelTask(r,i);return u(o(r),n(i.data,2)),f},e.forkInstance=a&&c.createInstance("Zone:fork(ascii zone, ascii newZone)"),e.scheduleInstance={},e.cancelInstance={},e.invokeScope={},e.invokeTaskScope={},e}();Zone.wtfZoneSpec=a?new r:null}("object"==typeof window&&window||"object"==typeof self&&self||global)});
\ No newline at end of file
+!function(e,n){"object"==typeof exports&&"undefined"!=typeof module?n():"function"==typeof define&&define.amd?define(n):n()}(this,function(){"use strict";!function(e){function n(e,o){if(!o)return null;var t={};for(var c in e)if(e.hasOwnProperty(c)){var a=e[c];switch(typeof a){case"object":var r=a&&a.constructor&&a.constructor.name;a=r==Object.name?n(a,o-1):r;break;case"function":a=a.name||void 0}t[c]=a}return t}function o(e){var n=e.name;for(e=e.parent;null!=e;)n=e.name+"::"+n,e=e.parent;return n}var t=null,c=null,a=function(){var n=e.wtf;return!(!n||!(t=n.trace))&&(c=t.events,!0)}(),r=function(){function e(){this.name="WTF"}return e.prototype.onFork=function(n,t,c,a){var r=n.fork(c,a);return e.forkInstance(o(c),r.name),r},e.prototype.onInvoke=function(n,a,r,i,s,u,f){var p=e.invokeScope[f];return p||(p=e.invokeScope[f]=c.createScope("Zone:invoke:"+f+"(ascii zone)")),t.leaveScope(p(o(r)),n.invoke(r,i,s,u,f))},e.prototype.onHandleError=function(e,n,o,t){return e.handleError(o,t)},e.prototype.onScheduleTask=function(t,a,r,i){var s=i.type+":"+i.source,u=e.scheduleInstance[s];u||(u=e.scheduleInstance[s]=c.createInstance("Zone:schedule:"+s+"(ascii zone, any data)"));var f=t.scheduleTask(r,i);return u(o(r),n(i.data,2)),f},e.prototype.onInvokeTask=function(n,a,r,i,s,u){var f=i.source,p=e.invokeTaskScope[f];return p||(p=e.invokeTaskScope[f]=c.createScope("Zone:invokeTask:"+f+"(ascii zone)")),t.leaveScope(p(o(r)),n.invokeTask(r,i,s,u))},e.prototype.onCancelTask=function(t,a,r,i){var s=i.source,u=e.cancelInstance[s];u||(u=e.cancelInstance[s]=c.createInstance("Zone:cancel:"+s+"(ascii zone, any options)"));var f=t.cancelTask(r,i);return u(o(r),n(i.data,2)),f},e}();r.forkInstance=a&&c.createInstance("Zone:fork(ascii zone, ascii newZone)"),r.scheduleInstance={},r.cancelInstance={},r.invokeScope={},r.invokeTaskScope={},Zone.wtfZoneSpec=a?new r:null}("object"==typeof window&&window||"object"==typeof self&&self||global)});
\ No newline at end of file
diff --git a/dist/zone-node.js b/dist/zone-node.js
index c69c3fcd2..079ed675e 100644
--- a/dist/zone-node.js
+++ b/dist/zone-node.js
@@ -176,9 +176,9 @@ var Zone$1 = (function (global) {
             task.cancelFn = null;
             return value;
         };
-        Zone.__symbol__ = __symbol__;
         return Zone;
     }());
+    Zone.__symbol__ = __symbol__;
     
     var ZoneDelegate = (function () {
         function ZoneDelegate(zone, parentDelegate, zoneSpec) {
@@ -423,7 +423,7 @@ var Zone$1 = (function (global) {
                 }
             }
             while (_uncaughtPromiseErrors.length) {
-                var _loop_1 = function() {
+                var _loop_1 = function () {
                     var uncaughtPromiseError = _uncaughtPromiseErrors.shift();
                     try {
                         uncaughtPromiseError.zone.runGuarded(function () {
@@ -680,12 +680,11 @@ var Zone$1 = (function (global) {
     function ZoneAwareError() {
         // Create an Error.
         var error = NativeError.apply(this, arguments);
-        this.message = error.message;
         // Save original stack trace
-        this.originalStack = error.stack;
+        error.originalStack = error.stack;
         // Process the stack trace and rewrite the frames.
-        if (ZoneAwareError[stackRewrite] && this.originalStack) {
-            var frames_1 = this.originalStack.split('\n');
+        if (ZoneAwareError[stackRewrite] && error.originalStack) {
+            var frames_1 = error.originalStack.split('\n');
             var zoneFrame = _currentZoneFrame;
             var i = 0;
             // Find the first frame
@@ -715,12 +714,12 @@ var Zone$1 = (function (global) {
                     }
                 }
             }
-            this.stack = this.zoneAwareStack = frames_1.join('\n');
+            error.stack = error.zoneAwareStack = frames_1.join('\n');
         }
+        return error;
     }
-    
     // Copy the prototype so that instanceof operator works as expected
-    ZoneAwareError.prototype = Object.create(NativeError.prototype);
+    ZoneAwareError.prototype = NativeError.prototype;
     ZoneAwareError[Zone.__symbol__('blacklistedStackFrames')] = blackListedStackFrames;
     ZoneAwareError[stackRewrite] = false;
     if (NativeError.hasOwnProperty('stackTraceLimit')) {
@@ -828,7 +827,12 @@ var Zone$1 = (function (global) {
  * Use of this source code is governed by an MIT-style license that can be
  * found in the LICENSE file at https://angular.io/license
  */
-var zoneSymbol = function (n) { return ("__zone_symbol__" + n); };
+/**
+ * Suppress closure compiler errors about unknown 'Zone' variable
+ * @fileoverview
+ * @suppress {undefinedVars}
+ */
+var zoneSymbol = function (n) { return "__zone_symbol__" + n; };
 var _global$1 = typeof window === 'object' && window || typeof self === 'object' && self || global;
 function bindArguments(args, source) {
     for (var i = args.length - 1; i >= 0; i--) {
@@ -843,64 +847,7 @@ function bindArguments(args, source) {
 var isNode = (!('nw' in _global$1) && typeof process !== 'undefined' &&
     {}.toString.call(process) === '[object process]');
 
-function patchProperty(obj, prop) {
-    var desc = Object.getOwnPropertyDescriptor(obj, prop) || { enumerable: true, configurable: true };
-    var originalDesc = Object.getOwnPropertyDescriptor(obj, 'original' + prop);
-    if (!originalDesc && desc.get) {
-        Object.defineProperty(obj, 'original' + prop, { enumerable: false, configurable: true, get: desc.get });
-    }
-    // A property descriptor cannot have getter/setter and be writable
-    // deleting the writable and value properties avoids this error:
-    //
-    // TypeError: property descriptors must not specify a value or be writable when a
-    // getter or setter has been specified
-    delete desc.writable;
-    delete desc.value;
-    // substr(2) cuz 'onclick' -> 'click', etc
-    var eventName = prop.substr(2);
-    var _prop = '_' + prop;
-    desc.set = function (fn) {
-        if (this[_prop]) {
-            this.removeEventListener(eventName, this[_prop]);
-        }
-        if (typeof fn === 'function') {
-            var wrapFn = function (event) {
-                var result;
-                result = fn.apply(this, arguments);
-                if (result != undefined && !result)
-                    event.preventDefault();
-            };
-            this[_prop] = wrapFn;
-            this.addEventListener(eventName, wrapFn, false);
-        }
-        else {
-            this[_prop] = null;
-        }
-    };
-    // The getter would return undefined for unassigned properties but the default value of an
-    // unassigned property is null
-    desc.get = function () {
-        var r = this[_prop] || null;
-        // result will be null when use inline event attribute,
-        // such as <button onclick="func();">OK</button>
-        // because the onclick function is internal raw uncompiled handler
-        // the onclick will be evaluated when first time event was triggered or
-        // the property is accessed, https://github.com/angular/zone.js/issues/525
-        // so we should use original native get to retrive the handler
-        if (r === null) {
-            var oriDesc = Object.getOwnPropertyDescriptor(obj, 'original' + prop);
-            if (oriDesc && oriDesc.get) {
-                r = oriDesc.get.apply(this, arguments);
-                if (r) {
-                    desc.set.apply(this, [r]);
-                    this.removeAttribute(prop);
-                }
-            }
-        }
-        return this[_prop] || null;
-    };
-    Object.defineProperty(obj, prop, desc);
-}
+
 
 
 
@@ -1331,7 +1278,7 @@ if (crypto) {
     crypto.pbkdf2 = function pbkdf2Zone() {
         var args = [];
         for (var _i = 0; _i < arguments.length; _i++) {
-            args[_i - 0] = arguments[_i];
+            args[_i] = arguments[_i];
         }
         var fn = args[args.length - 1];
         if (typeof fn === 'function') {
diff --git a/dist/zone.js b/dist/zone.js
index 4aae29dae..972e4fe8b 100644
--- a/dist/zone.js
+++ b/dist/zone.js
@@ -176,9 +176,9 @@ var Zone$1 = (function (global) {
             task.cancelFn = null;
             return value;
         };
-        Zone.__symbol__ = __symbol__;
         return Zone;
     }());
+    Zone.__symbol__ = __symbol__;
     
     var ZoneDelegate = (function () {
         function ZoneDelegate(zone, parentDelegate, zoneSpec) {
@@ -423,7 +423,7 @@ var Zone$1 = (function (global) {
                 }
             }
             while (_uncaughtPromiseErrors.length) {
-                var _loop_1 = function() {
+                var _loop_1 = function () {
                     var uncaughtPromiseError = _uncaughtPromiseErrors.shift();
                     try {
                         uncaughtPromiseError.zone.runGuarded(function () {
@@ -680,12 +680,11 @@ var Zone$1 = (function (global) {
     function ZoneAwareError() {
         // Create an Error.
         var error = NativeError.apply(this, arguments);
-        this.message = error.message;
         // Save original stack trace
-        this.originalStack = error.stack;
+        error.originalStack = error.stack;
         // Process the stack trace and rewrite the frames.
-        if (ZoneAwareError[stackRewrite] && this.originalStack) {
-            var frames_1 = this.originalStack.split('\n');
+        if (ZoneAwareError[stackRewrite] && error.originalStack) {
+            var frames_1 = error.originalStack.split('\n');
             var zoneFrame = _currentZoneFrame;
             var i = 0;
             // Find the first frame
@@ -715,12 +714,12 @@ var Zone$1 = (function (global) {
                     }
                 }
             }
-            this.stack = this.zoneAwareStack = frames_1.join('\n');
+            error.stack = error.zoneAwareStack = frames_1.join('\n');
         }
+        return error;
     }
-    
     // Copy the prototype so that instanceof operator works as expected
-    ZoneAwareError.prototype = Object.create(NativeError.prototype);
+    ZoneAwareError.prototype = NativeError.prototype;
     ZoneAwareError[Zone.__symbol__('blacklistedStackFrames')] = blackListedStackFrames;
     ZoneAwareError[stackRewrite] = false;
     if (NativeError.hasOwnProperty('stackTraceLimit')) {
@@ -828,7 +827,12 @@ var Zone$1 = (function (global) {
  * Use of this source code is governed by an MIT-style license that can be
  * found in the LICENSE file at https://angular.io/license
  */
-var zoneSymbol = function (n) { return ("__zone_symbol__" + n); };
+/**
+ * Suppress closure compiler errors about unknown 'Zone' variable
+ * @fileoverview
+ * @suppress {undefinedVars}
+ */
+var zoneSymbol = function (n) { return "__zone_symbol__" + n; };
 var _global$1 = typeof window === 'object' && window || typeof self === 'object' && self || global;
 function bindArguments(args, source) {
     for (var i = args.length - 1; i >= 0; i--) {
@@ -840,7 +844,7 @@ function bindArguments(args, source) {
 }
 function patchPrototype(prototype, fnNames) {
     var source = prototype.constructor['name'];
-    var _loop_1 = function(i) {
+    var _loop_1 = function (i) {
         var name_1 = fnNames[i];
         var delegate = prototype[name_1];
         if (delegate) {
@@ -1512,7 +1516,7 @@ var unboundKey = zoneSymbol('unbound');
 // for `onwhatever` properties and replace them with zone-bound functions
 // - Chrome (for now)
 function patchViaCapturingAllTheEvents() {
-    var _loop_1 = function(i) {
+    var _loop_1 = function (i) {
         var property = eventNames[i];
         var onproperty = 'on' + property;
         self.addEventListener(property, function (event) {
diff --git a/dist/zone.min.js b/dist/zone.min.js
index 3d63fe690..21ef96af3 100644
--- a/dist/zone.min.js
+++ b/dist/zone.min.js
@@ -1 +1 @@
-!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="_"+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 r=this[a]||null;if(null===r){var o=Object.getOwnPropertyDescriptor(e,"original"+t);o&&o.get&&(r=o.get.apply(this,arguments),r&&(n.set.apply(this,[r]),this.removeAttribute(t)))}return 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[C];if(a)for(var i=0;i<a.length;i++){var s=a[i],u=s.data,c=u.handler;if((u.handler===t||c.listener===t)&&u.useCapturing===r&&u.eventName===n)return o&&a.splice(i,1),s}return null}function a(e,t,n){var r=e[C];r||(r=e[C]=[]),n?r.unshift(t):r.push(t)}function i(e,t,n,r,i,s){function u(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(h,e)}void 0===n&&(n=!0),void 0===r&&(r=!1),void 0===i&&(i=!1),void 0===s&&(s=I);var l=E(e),h=E(t),p=!n&&void 0;return function(t,n){var a=s(t,n);a.useCapturing=a.useCapturing||p;var i=null;"function"==typeof a.handler?i=a.handler:a.handler&&a.handler.handleEvent&&(i=function(e){return a.handler.handleEvent(e)});var h=!1;try{h=a.handler&&"[object FunctionWrapper]"===a.handler.toString()}catch(f){return}if(!i||h)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,u,c)}}function s(e,t,n){void 0===t&&(t=!0),void 0===n&&(n=I);var r=E(e),a=!t&&void 0;return function(e,t){var i=n(e,t);i.useCapturing=i.useCapturing||a;var s=o(i.target,i.handler,i.eventName,i.useCapturing,!0);s?s.zone.cancelTask(s):i.invokeRemoveFunc(r,i.handler)}}function u(e,t,n,r){return void 0===t&&(t=z),void 0===n&&(n=j),void 0===r&&(r=I),!(!e||!e[t])&&(h(e,t,function(){return i(t,n,!0,!1,!1,r)}),h(e,n,function(){return s(n,!0,r)}),!0)}function c(t){var n=D[t];if(n){D[t]=function(){var r=e(arguments,t);switch(r.length){case 0:this[L]=new n;break;case 1:this[L]=new n(r[0]);break;case 2:this[L]=new n(r[0],r[1]);break;case 3:this[L]=new n(r[0],r[1],r[2]);break;case 4:this[L]=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]?D[t].prototype[e]=function(){return this[L][e].apply(this[L],arguments)}:Object.defineProperty(D[t].prototype,e,{set:function(n){"function"==typeof n?this[L][e]=Zone.current.wrap(n,t+"."+e):this[L][e]=n},get:function(){return this[L][e]}})}(r);for(r in n)"prototype"!==r&&n.hasOwnProperty(r)&&(D[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 h(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=E(t);return r&&!(o=r[a])&&(o=r[a]=r[t],r[t]=l(t,n(o,a,t))),o}function p(e,t,n,r){function o(t){var n=t.data;return n.args[0]=function(){t.invoke.apply(this,arguments),delete u[n.handleId]},n.handleId=i.apply(e,n.args),u[n.handleId]=t,t}function a(e){return delete u[e.data.handleId],s(e.data.handleId)}var i=null,s=null;t+=r,n+=r;var u={};i=h(e,t,function(n){return function(i,s){if("function"==typeof s[0]){var u=Zone.current,c={handleId:null,isPeriodic:"Interval"===r,delay:"Timeout"===r||"Interval"===r?s[1]||0:null,args:s},l=u.scheduleMacroTask(t,s[0],c,o,a);if(!l)return l;var h=l.data.handleId;return h.ref&&h.unref&&(l.ref=h.ref.bind(h),l.unref=h.unref.bind(h)),l}return n.apply(e,s)}}),s=h(e,n,function(t){return function(n,r){var o="number"==typeof r[0]?u[r[0]]:r[0];o&&"string"==typeof o.type?(o.cancelFn&&o.data.isPeriodic||0===o.runCount)&&o.zone.cancelTask(o):t.apply(e,r)}})}function f(){Object.defineProperty=function(e,t,n){if(k(e,t))throw new TypeError("Cannot assign to read only property '"+t+"' of "+e);var r=n.configurable;return"prototype"!==t&&(n=v(e,t,n)),g(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]=v(e,n,t[n])}),H(e,t)},Object.getOwnPropertyDescriptor=function(e,t){var n=M(e,t);return k(e,t)&&(n.configurable=!1),n}}function d(e,t,n){var r=n.configurable;return n=v(e,t,n),g(e,t,n,r)}function k(e,t){return e&&e[R]&&e[R][t]}function v(e,t,n){return n.configurable=!0,n.configurable||(e[R]||F(e,R,{writable:!0,value:{}}),e[R][t]=!0),n}function g(e,t,n,r){try{return F(e,t,n)}catch(o){if(!n.configurable)throw o;"undefined"==typeof r?delete 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this._invokeTaskZS?this._invokeTaskZS.onInvokeTask(this._invokeTaskDlgt,this._invokeTaskCurrZone,e,t,n,r):t.callback.apply(n,r)}finally{e!=this.zone||"eventTask"==t.type||t.data&&t.data.isPeriodic||this._updateTaskCount(t.type,-1)}},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 new Error("Task does not support cancellation, or is already canceled.");n=t.cancelFn(t)}return e==this.zone&&this._updateTaskCount(t.type,-1),n},e.prototype.hasTask=function(e,t){return this._hasTaskZS&&this._hasTaskZS.onHasTask(this._hasTaskDlgt,this._hasTaskCurrZone,e,t)},e.prototype._updateTaskCount=function(e,t){var n=this._taskCounts,r=n[e],o=n[e]=r+t;if(o<0)throw new Error("More tasks executed then were scheduled.");if(0==r||0==o){var a={microTask:n.microTask>0,macroTask:n.macroTask>0,eventTask:n.eventTask>0,change:e};try{this.hasTask(this.zone,a)}finally{this._parentDelegate&&this._parentDelegate._updateTaskCount(e,t)}}},e}(),g=function(){function e(e,t,n,r,o,i,s){this.runCount=0,this.type=e,this.zone=t,this.source=n,this.data=o,this.scheduleFn=i,this.cancelFn=s,this.callback=r;var u=this;this.invoke=function(){O++;try{return t.runTask(u,this,arguments)}finally{1==O&&a(),O--}}}return e.prototype.toString=function(){return this.data&&"undefined"!=typeof this.data.handleId?this.data.handleId:Object.prototype.toString.call(this)},e}(),y=function(){function e(e,t){this.parent=e,this.zone=t}return e}(),m=t("setTimeout"),b=t("Promise"),T=t("then"),_=new y(null,new k(null,null)),w=null,S=[],E=!1,D=[],O=0,Z=t("state"),P=t("value"),C="Promise.then",z=null,j=!0,I=!1,L=0,F=function(){function e(t){var n=this;if(!(n instanceof e))throw new Error("Must be an instanceof Promise.");n[Z]=z,n[P]=[];try{t&&t(c(n,j),c(n,I))}catch(r){l(n,!1,r)}}return e.resolve=function(e){return l(new this(null),j,e)},e.reject=function(e){return l(new this(null),I,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}),s=0,u=e;s<u.length;s++){var c=u[s];i(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=[],s=0,u=e;s<u.length;s++){var c=u[s];i(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=k.current;return this[Z]==z?this[P].push(r,n,e,t):f(this,r,n,e,t),n},e.prototype["catch"]=function(e){return this.then(null,e)},e}();F.resolve=F.resolve,F.reject=F.reject,F.race=F.race,F.all=F.all;var M=e[t("Promise")]=e.Promise;if(e.Promise=F,M&&(h(M),"undefined"!=typeof e.fetch)){var H=void 0;try{H=e.fetch()}catch(R){H=e.fetch("about:blank")}H.then(function(){return null},function(){return null}),H.constructor!=M&&H.constructor!=F&&h(H.constructor)}Promise[k.__symbol__("uncaughtPromiseErrors")]=D;var x;!function(e){e[e.blackList=0]="blackList",e[e.transition=1]="transition"}(x||(x={}));var q,B=e[t("Error")]=e.Error,A={};e.Error=d;var W="stackRewrite";d.prototype=B.prototype,d[k.__symbol__("blacklistedStackFrames")]=A,d[W]=!1,B.hasOwnProperty("stackTraceLimit")&&(B.stackTraceLimit=Math.max(B.stackTraceLimit,15),Object.defineProperty(d,"stackTraceLimit",{get:function(){return B.stackTraceLimit},set:function(e){return B.stackTraceLimit=e}})),B.hasOwnProperty("captureStackTrace")&&Object.defineProperty(d,"captureStackTrace",{value:function(e,t){B.captureStackTrace(e,t)}}),Object.defineProperty(d,"prepareStackTrace",{get:function(){return B.prepareStackTrace},set:function(e){return B.prepareStackTrace=e}});var N=k.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===d)for(var o=r.originalStack.split(/\n/),a=!1,i=!1,s=!1;o.length;){var u=o.shift();if(/:\d+:\d+/.test(u)){var c=u.split("(")[0].split("@")[0],l=x.transition;if(c.indexOf("ZoneAwareError")!==-1&&(q=u),c.indexOf("runGuarded")!==-1?i=!0:c.indexOf("runTask")!==-1?s=!0:c.indexOf("run")!==-1?a=!0:l=x.blackList,A[u]=l,a&&i&&s){d[W]=!0;break}}}return!1}}),X=function(){N.run(function(){N.runGuarded(function(){throw new Error("blacklistStackFrames")})})};return N.runTask(N.scheduleMacroTask("detect",X,null,function(){return null},null)),e.Zone=k}("object"==typeof window&&window||"object"==typeof self&&self||global),function(e){return"__zone_symbol__"+e}),D="object"==typeof window&&window||"object"==typeof self&&self||global,O="undefined"!=typeof WorkerGlobalScope&&self instanceof WorkerGlobalScope,Z=!("nw"in D)&&"undefined"!=typeof process&&"[object process]"==={}.toString.call(process),P=!Z&&!O&&!("undefined"==typeof window||!window.HTMLElement),C=E("eventTasks"),z="addEventListener",j="removeEventListener",I=function(e,t){return{useCapturing:t[2],eventName:t[0],handler:t[1],target:e||D,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)}}},L=(i(z,j),s(j),E("originalInstance")),F=Object[E("defineProperty")]=Object.defineProperty,M=Object[E("getOwnPropertyDescriptor")]=Object.getOwnPropertyDescriptor,H=Object.create,R=E("unconfigurables"),x="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",q="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(","),B="EventTarget",A="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(" "),W=E("unbound"),N="set",X="clear",G=["alert","prompt","confirm"],U="object"==typeof window&&window||"object"==typeof self&&self||global;f(U,N,X,"Timeout"),f(U,N,X,"Interval"),f(U,N,X,"Immediate"),f(U,"request","cancel","AnimationFrame"),f(U,"mozRequest","mozCancel","AnimationFrame"),f(U,"webkitRequest","webkitCancel","AnimationFrame");for(var K=0;K<G.length;K++){var V=G[K];p(U,V,function(e,t,n){return function(t,r){return Zone.current.run(e,U,r,n)}})}y(U),b(U),c("MutationObserver"),c("WebKitMutationObserver"),c("FileReader"),h(),w(U),S(U);var J=E("xhrTask"),Q=E("xhrSync"),Y=E("xhrListener"),$=E("xhrScheduled");U.navigator&&U.navigator.geolocation&&t(U.navigator.geolocation,["getCurrentPosition","watchPosition"])});
\ No newline at end of file
diff --git a/package.json b/package.json
index 73bf918ff..293cd23e0 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "zone.js",
-  "version": "0.7.3",
+  "version": "0.7.4",
   "description": "Zones for JavaScript",
   "main": "dist/zone-node.js",
   "browser": "dist/zone.js",