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@license\n* Copyright Google Inc. All Rights Reserved.\n*\n* Use of this source code is governed by an MIT-style license that can be\n* found in the LICENSE file at https://angular.io/license\n*/\n(function (global, factory) {\n\ttypeof exports === 'object' && typeof module !== 'undefined' ? factory() :\n\ttypeof define === 'function' && define.amd ? define(factory) :\n\t(factory());\n}(this, (function () { 'use strict';\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nvar Zone$1 = (function (global) {\n    var performance = global['performance'];\n    function mark(name) {\n        performance && performance['mark'] && performance['mark'](name);\n    }\n    function performanceMeasure(name, label) {\n        performance && performance['measure'] && performance['measure'](name, label);\n    }\n    mark('Zone');\n    var checkDuplicate = global[('__zone_symbol__forceDuplicateZoneCheck')] === true;\n    if (global['Zone']) {\n        // if global['Zone'] already exists (maybe zone.js was already loaded or\n        // some other lib also registered a global object named Zone), we may need\n        // to throw an error, but sometimes user may not want this error.\n        // For example,\n        // we have two web pages, page1 includes zone.js, page2 doesn't.\n        // and the 1st time user load page1 and page2, everything work fine,\n        // but when user load page2 again, error occurs because global['Zone'] already exists.\n        // so we add a flag to let user choose whether to throw this error or not.\n        // By default, if existing Zone is from zone.js, we will not throw the error.\n        if (checkDuplicate || typeof global['Zone'].__symbol__ !== 'function') {\n            throw new Error('Zone already loaded.');\n        }\n        else {\n            return global['Zone'];\n        }\n    }\n    var Zone = /** @class */ (function () {\n        function Zone(parent, zoneSpec) {\n            this._parent = parent;\n            this._name = zoneSpec ? zoneSpec.name || 'unnamed' : '<root>';\n            this._properties = zoneSpec && zoneSpec.properties || {};\n            this._zoneDelegate =\n                new ZoneDelegate(this, this._parent && this._parent._zoneDelegate, zoneSpec);\n        }\n        Zone.assertZonePatched = function () {\n            if (global['Promise'] !== patches['ZoneAwarePromise']) {\n                throw new Error('Zone.js has detected that ZoneAwarePromise `(window|global).Promise` ' +\n                    'has been overwritten.\\n' +\n                    'Most likely cause is that a Promise polyfill has been loaded ' +\n                    'after Zone.js (Polyfilling Promise api is not necessary when zone.js is loaded. ' +\n                    'If you must load one, do so before loading zone.js.)');\n            }\n        };\n        Object.defineProperty(Zone, \"root\", {\n            get: function () {\n                var zone = Zone.current;\n                while (zone.parent) {\n                    zone = zone.parent;\n                }\n                return zone;\n            },\n            enumerable: true,\n            configurable: true\n        });\n        Object.defineProperty(Zone, \"current\", {\n            get: function () {\n                return _currentZoneFrame.zone;\n            },\n            enumerable: true,\n            configurable: true\n        });\n        Object.defineProperty(Zone, \"currentTask\", {\n            get: function () {\n                return _currentTask;\n            },\n            enumerable: true,\n            configurable: true\n        });\n        Zone.__load_patch = function (name, fn) {\n            if (patches.hasOwnProperty(name)) {\n                if (checkDuplicate) {\n                    throw Error('Already loaded patch: ' + name);\n                }\n            }\n            else if (!global['__Zone_disable_' + name]) {\n                var perfName = 'Zone:' + name;\n                mark(perfName);\n                patches[name] = fn(global, Zone, _api);\n                performanceMeasure(perfName, perfName);\n            }\n        };\n        Object.defineProperty(Zone.prototype, \"parent\", {\n            get: function () {\n                return this._parent;\n            },\n            enumerable: true,\n            configurable: true\n        });\n        Object.defineProperty(Zone.prototype, \"name\", {\n            get: function () {\n                return this._name;\n            },\n            enumerable: true,\n            configurable: true\n        });\n        Zone.prototype.get = function (key) {\n            var zone = this.getZoneWith(key);\n            if (zone)\n                return zone._properties[key];\n        };\n        Zone.prototype.getZoneWith = function (key) {\n            var current = this;\n            while (current) {\n                if (current._properties.hasOwnProperty(key)) {\n                    return current;\n                }\n                current = current._parent;\n            }\n            return null;\n        };\n        Zone.prototype.fork = function (zoneSpec) {\n            if (!zoneSpec)\n                throw new Error('ZoneSpec required!');\n            return this._zoneDelegate.fork(this, zoneSpec);\n        };\n        Zone.prototype.wrap = function (callback, source) {\n            if (typeof callback !== 'function') {\n                throw new Error('Expecting function got: ' + callback);\n            }\n            var _callback = this._zoneDelegate.intercept(this, callback, source);\n            var zone = this;\n            return function () {\n                return zone.runGuarded(_callback, this, arguments, source);\n            };\n        };\n        Zone.prototype.run = function (callback, applyThis, applyArgs, source) {\n            _currentZoneFrame = { parent: _currentZoneFrame, zone: this };\n            try {\n                return this._zoneDelegate.invoke(this, callback, applyThis, applyArgs, source);\n            }\n            finally {\n                _currentZoneFrame = _currentZoneFrame.parent;\n            }\n        };\n        Zone.prototype.runGuarded = function (callback, applyThis, applyArgs, source) {\n            if (applyThis === void 0) { applyThis = null; }\n            _currentZoneFrame = { parent: _currentZoneFrame, zone: this };\n            try {\n                try {\n                    return this._zoneDelegate.invoke(this, callback, applyThis, applyArgs, source);\n                }\n                catch (error) {\n                    if (this._zoneDelegate.handleError(this, error)) {\n                        throw error;\n                    }\n                }\n            }\n            finally {\n                _currentZoneFrame = _currentZoneFrame.parent;\n            }\n        };\n        Zone.prototype.runTask = function (task, applyThis, applyArgs) {\n            if (task.zone != this) {\n                throw new Error('A task can only be run in the zone of creation! (Creation: ' +\n                    (task.zone || NO_ZONE).name + '; Execution: ' + this.name + ')');\n            }\n            // https://github.com/angular/zone.js/issues/778, sometimes eventTask\n            // will run in notScheduled(canceled) state, we should not try to\n            // run such kind of task but just return\n            if (task.state === notScheduled && (task.type === eventTask || task.type === macroTask)) {\n                return;\n            }\n            var reEntryGuard = task.state != running;\n            reEntryGuard && task._transitionTo(running, scheduled);\n            task.runCount++;\n            var previousTask = _currentTask;\n            _currentTask = task;\n            _currentZoneFrame = { parent: _currentZoneFrame, zone: this };\n            try {\n                if (task.type == macroTask && task.data && !task.data.isPeriodic) {\n                    task.cancelFn = undefined;\n                }\n                try {\n                    return this._zoneDelegate.invokeTask(this, task, applyThis, applyArgs);\n                }\n                catch (error) {\n                    if (this._zoneDelegate.handleError(this, error)) {\n                        throw error;\n                    }\n                }\n            }\n            finally {\n                // if the task's state is notScheduled or unknown, then it has already been cancelled\n                // we should not reset the state to scheduled\n                if (task.state !== notScheduled && task.state !== unknown) {\n                    if (task.type == eventTask || (task.data && task.data.isPeriodic)) {\n                        reEntryGuard && task._transitionTo(scheduled, running);\n                    }\n                    else {\n                        task.runCount = 0;\n                        this._updateTaskCount(task, -1);\n                        reEntryGuard &&\n                            task._transitionTo(notScheduled, running, notScheduled);\n                    }\n                }\n                _currentZoneFrame = _currentZoneFrame.parent;\n                _currentTask = previousTask;\n            }\n        };\n        Zone.prototype.scheduleTask = function (task) {\n            if (task.zone && task.zone !== this) {\n                // check if the task was rescheduled, the newZone\n                // should not be the children of the original zone\n                var newZone = this;\n                while (newZone) {\n                    if (newZone === task.zone) {\n                        throw Error(\"can not reschedule task to \" + this.name + \" which is descendants of the original zone \" + task.zone.name);\n                    }\n                    newZone = newZone.parent;\n                }\n            }\n            task._transitionTo(scheduling, notScheduled);\n            var zoneDelegates = [];\n            task._zoneDelegates = zoneDelegates;\n            task._zone = this;\n            try {\n                task = this._zoneDelegate.scheduleTask(this, task);\n            }\n            catch (err) {\n                // should set task's state to unknown when scheduleTask throw error\n                // because the err may from reschedule, so the fromState maybe notScheduled\n                task._transitionTo(unknown, scheduling, notScheduled);\n                // TODO: @JiaLiPassion, should we check the result from handleError?\n                this._zoneDelegate.handleError(this, err);\n                throw err;\n            }\n            if (task._zoneDelegates === zoneDelegates) {\n                // we have to check because internally the delegate can reschedule the task.\n                this._updateTaskCount(task, 1);\n            }\n            if (task.state == scheduling) {\n                task._transitionTo(scheduled, scheduling);\n            }\n            return task;\n        };\n        Zone.prototype.scheduleMicroTask = function (source, callback, data, customSchedule) {\n            return this.scheduleTask(new ZoneTask(microTask, source, callback, data, customSchedule, undefined));\n        };\n        Zone.prototype.scheduleMacroTask = function (source, callback, data, customSchedule, customCancel) {\n            return this.scheduleTask(new ZoneTask(macroTask, source, callback, data, customSchedule, customCancel));\n        };\n        Zone.prototype.scheduleEventTask = function (source, callback, data, customSchedule, customCancel) {\n            return this.scheduleTask(new ZoneTask(eventTask, source, callback, data, customSchedule, customCancel));\n        };\n        Zone.prototype.cancelTask = function (task) {\n            if (task.zone != this)\n                throw new Error('A task can only be cancelled in the zone of creation! (Creation: ' +\n                    (task.zone || NO_ZONE).name + '; Execution: ' + this.name + ')');\n            task._transitionTo(canceling, scheduled, running);\n            try {\n                this._zoneDelegate.cancelTask(this, task);\n            }\n            catch (err) {\n                // if error occurs when cancelTask, transit the state to unknown\n                task._transitionTo(unknown, canceling);\n                this._zoneDelegate.handleError(this, err);\n                throw err;\n            }\n            this._updateTaskCount(task, -1);\n            task._transitionTo(notScheduled, canceling);\n            task.runCount = 0;\n            return task;\n        };\n        Zone.prototype._updateTaskCount = function (task, count) {\n            var zoneDelegates = task._zoneDelegates;\n            if (count == -1) {\n                task._zoneDelegates = null;\n            }\n            for (var i = 0; i < zoneDelegates.length; i++) {\n                zoneDelegates[i]._updateTaskCount(task.type, count);\n            }\n        };\n        Zone.__symbol__ = __symbol__;\n        return Zone;\n    }());\n    var DELEGATE_ZS = {\n        name: '',\n        onHasTask: function (delegate, _, target, hasTaskState) { return delegate.hasTask(target, hasTaskState); },\n        onScheduleTask: function (delegate, _, target, task) {\n            return delegate.scheduleTask(target, task);\n        },\n        onInvokeTask: function (delegate, _, target, task, applyThis, applyArgs) {\n            return delegate.invokeTask(target, task, applyThis, applyArgs);\n        },\n        onCancelTask: function (delegate, _, target, task) { return delegate.cancelTask(target, task); }\n    };\n    var ZoneDelegate = /** @class */ (function () {\n        function ZoneDelegate(zone, parentDelegate, zoneSpec) {\n            this._taskCounts = { 'microTask': 0, 'macroTask': 0, 'eventTask': 0 };\n            this.zone = zone;\n            this._parentDelegate = parentDelegate;\n            this._forkZS = zoneSpec && (zoneSpec && zoneSpec.onFork ? zoneSpec : parentDelegate._forkZS);\n            this._forkDlgt = zoneSpec && (zoneSpec.onFork ? parentDelegate : parentDelegate._forkDlgt);\n            this._forkCurrZone = zoneSpec && (zoneSpec.onFork ? this.zone : parentDelegate.zone);\n            this._interceptZS =\n                zoneSpec && (zoneSpec.onIntercept ? zoneSpec : parentDelegate._interceptZS);\n            this._interceptDlgt =\n                zoneSpec && (zoneSpec.onIntercept ? parentDelegate : parentDelegate._interceptDlgt);\n            this._interceptCurrZone =\n                zoneSpec && (zoneSpec.onIntercept ? this.zone : parentDelegate.zone);\n            this._invokeZS = zoneSpec && (zoneSpec.onInvoke ? zoneSpec : parentDelegate._invokeZS);\n            this._invokeDlgt =\n                zoneSpec && (zoneSpec.onInvoke ? parentDelegate : parentDelegate._invokeDlgt);\n            this._invokeCurrZone = zoneSpec && (zoneSpec.onInvoke ? this.zone : parentDelegate.zone);\n            this._handleErrorZS =\n                zoneSpec && (zoneSpec.onHandleError ? zoneSpec : parentDelegate._handleErrorZS);\n            this._handleErrorDlgt =\n                zoneSpec && (zoneSpec.onHandleError ? parentDelegate : parentDelegate._handleErrorDlgt);\n            this._handleErrorCurrZone =\n                zoneSpec && (zoneSpec.onHandleError ? this.zone : parentDelegate.zone);\n            this._scheduleTaskZS =\n                zoneSpec && (zoneSpec.onScheduleTask ? zoneSpec : parentDelegate._scheduleTaskZS);\n            this._scheduleTaskDlgt = zoneSpec &&\n                (zoneSpec.onScheduleTask ? parentDelegate : parentDelegate._scheduleTaskDlgt);\n            this._scheduleTaskCurrZone =\n                zoneSpec && (zoneSpec.onScheduleTask ? this.zone : parentDelegate.zone);\n            this._invokeTaskZS =\n                zoneSpec && (zoneSpec.onInvokeTask ? zoneSpec : parentDelegate._invokeTaskZS);\n            this._invokeTaskDlgt =\n                zoneSpec && (zoneSpec.onInvokeTask ? parentDelegate : parentDelegate._invokeTaskDlgt);\n            this._invokeTaskCurrZone =\n                zoneSpec && (zoneSpec.onInvokeTask ? this.zone : parentDelegate.zone);\n            this._cancelTaskZS =\n                zoneSpec && (zoneSpec.onCancelTask ? zoneSpec : parentDelegate._cancelTaskZS);\n            this._cancelTaskDlgt =\n                zoneSpec && (zoneSpec.onCancelTask ? parentDelegate : parentDelegate._cancelTaskDlgt);\n            this._cancelTaskCurrZone =\n                zoneSpec && (zoneSpec.onCancelTask ? this.zone : parentDelegate.zone);\n            this._hasTaskZS = null;\n            this._hasTaskDlgt = null;\n            this._hasTaskDlgtOwner = null;\n            this._hasTaskCurrZone = null;\n            var zoneSpecHasTask = zoneSpec && zoneSpec.onHasTask;\n            var parentHasTask = parentDelegate && parentDelegate._hasTaskZS;\n            if (zoneSpecHasTask || parentHasTask) {\n                // If we need to report hasTask, than this ZS needs to do ref counting on tasks. In such\n                // a case all task related interceptors must go through this ZD. We can't short circuit it.\n                this._hasTaskZS = zoneSpecHasTask ? zoneSpec : DELEGATE_ZS;\n                this._hasTaskDlgt = parentDelegate;\n                this._hasTaskDlgtOwner = this;\n                this._hasTaskCurrZone = zone;\n                if (!zoneSpec.onScheduleTask) {\n                    this._scheduleTaskZS = DELEGATE_ZS;\n                    this._scheduleTaskDlgt = parentDelegate;\n                    this._scheduleTaskCurrZone = this.zone;\n                }\n                if (!zoneSpec.onInvokeTask) {\n                    this._invokeTaskZS = DELEGATE_ZS;\n                    this._invokeTaskDlgt = parentDelegate;\n                    this._invokeTaskCurrZone = this.zone;\n                }\n                if (!zoneSpec.onCancelTask) {\n                    this._cancelTaskZS = DELEGATE_ZS;\n                    this._cancelTaskDlgt = parentDelegate;\n                    this._cancelTaskCurrZone = this.zone;\n                }\n            }\n        }\n        ZoneDelegate.prototype.fork = function (targetZone, zoneSpec) {\n            return this._forkZS ? this._forkZS.onFork(this._forkDlgt, this.zone, targetZone, zoneSpec) :\n                new Zone(targetZone, zoneSpec);\n        };\n        ZoneDelegate.prototype.intercept = function (targetZone, callback, source) {\n            return this._interceptZS ?\n                this._interceptZS.onIntercept(this._interceptDlgt, this._interceptCurrZone, targetZone, callback, source) :\n                callback;\n        };\n        ZoneDelegate.prototype.invoke = function (targetZone, callback, applyThis, applyArgs, source) {\n            return this._invokeZS ? this._invokeZS.onInvoke(this._invokeDlgt, this._invokeCurrZone, targetZone, callback, applyThis, applyArgs, source) :\n                callback.apply(applyThis, applyArgs);\n        };\n        ZoneDelegate.prototype.handleError = function (targetZone, error) {\n            return this._handleErrorZS ?\n                this._handleErrorZS.onHandleError(this._handleErrorDlgt, this._handleErrorCurrZone, targetZone, error) :\n                true;\n        };\n        ZoneDelegate.prototype.scheduleTask = function (targetZone, task) {\n            var returnTask = task;\n            if (this._scheduleTaskZS) {\n                if (this._hasTaskZS) {\n                    returnTask._zoneDelegates.push(this._hasTaskDlgtOwner);\n                }\n                returnTask = this._scheduleTaskZS.onScheduleTask(this._scheduleTaskDlgt, this._scheduleTaskCurrZone, targetZone, task);\n                if (!returnTask)\n                    returnTask = task;\n            }\n            else {\n                if (task.scheduleFn) {\n                    task.scheduleFn(task);\n                }\n                else if (task.type == microTask) {\n                    scheduleMicroTask(task);\n                }\n                else {\n                    throw new Error('Task is missing scheduleFn.');\n                }\n            }\n            return returnTask;\n        };\n        ZoneDelegate.prototype.invokeTask = function (targetZone, task, applyThis, applyArgs) {\n            return this._invokeTaskZS ? this._invokeTaskZS.onInvokeTask(this._invokeTaskDlgt, this._invokeTaskCurrZone, targetZone, task, applyThis, applyArgs) :\n                task.callback.apply(applyThis, applyArgs);\n        };\n        ZoneDelegate.prototype.cancelTask = function (targetZone, task) {\n            var value;\n            if (this._cancelTaskZS) {\n                value = this._cancelTaskZS.onCancelTask(this._cancelTaskDlgt, this._cancelTaskCurrZone, targetZone, task);\n            }\n            else {\n                if (!task.cancelFn) {\n                    throw Error('Task is not cancelable');\n                }\n                value = task.cancelFn(task);\n            }\n            return value;\n        };\n        ZoneDelegate.prototype.hasTask = function (targetZone, isEmpty) {\n            // hasTask should not throw error so other ZoneDelegate\n            // can still trigger hasTask callback\n            try {\n                this._hasTaskZS &&\n                    this._hasTaskZS.onHasTask(this._hasTaskDlgt, this._hasTaskCurrZone, targetZone, isEmpty);\n            }\n            catch (err) {\n                this.handleError(targetZone, err);\n            }\n        };\n        ZoneDelegate.prototype._updateTaskCount = function (type, count) {\n            var counts = this._taskCounts;\n            var prev = counts[type];\n            var next = counts[type] = prev + count;\n            if (next < 0) {\n                throw new Error('More tasks executed then were scheduled.');\n            }\n            if (prev == 0 || next == 0) {\n                var isEmpty = {\n                    microTask: counts['microTask'] > 0,\n                    macroTask: counts['macroTask'] > 0,\n                    eventTask: counts['eventTask'] > 0,\n                    change: type\n                };\n                this.hasTask(this.zone, isEmpty);\n            }\n        };\n        return ZoneDelegate;\n    }());\n    var ZoneTask = /** @class */ (function () {\n        function ZoneTask(type, source, callback, options, scheduleFn, cancelFn) {\n            this._zone = null;\n            this.runCount = 0;\n            this._zoneDelegates = null;\n            this._state = 'notScheduled';\n            this.type = type;\n            this.source = source;\n            this.data = options;\n            this.scheduleFn = scheduleFn;\n            this.cancelFn = cancelFn;\n            this.callback = callback;\n            var self = this;\n            // TODO: @JiaLiPassion options should have interface\n            if (type === eventTask && options && options.useG) {\n                this.invoke = ZoneTask.invokeTask;\n            }\n            else {\n                this.invoke = function () {\n                    return ZoneTask.invokeTask.call(global, self, this, arguments);\n                };\n            }\n        }\n        ZoneTask.invokeTask = function (task, target, args) {\n            if (!task) {\n                task = this;\n            }\n            _numberOfNestedTaskFrames++;\n            try {\n                task.runCount++;\n                return task.zone.runTask(task, target, args);\n            }\n            finally {\n                if (_numberOfNestedTaskFrames == 1) {\n                    drainMicroTaskQueue();\n                }\n                _numberOfNestedTaskFrames--;\n            }\n        };\n        Object.defineProperty(ZoneTask.prototype, \"zone\", {\n            get: function () {\n                return this._zone;\n            },\n            enumerable: true,\n            configurable: true\n        });\n        Object.defineProperty(ZoneTask.prototype, \"state\", {\n            get: function () {\n                return this._state;\n            },\n            enumerable: true,\n            configurable: true\n        });\n        ZoneTask.prototype.cancelScheduleRequest = function () {\n            this._transitionTo(notScheduled, scheduling);\n        };\n        ZoneTask.prototype._transitionTo = function (toState, fromState1, fromState2) {\n            if (this._state === fromState1 || this._state === fromState2) {\n                this._state = toState;\n                if (toState == notScheduled) {\n                    this._zoneDelegates = null;\n                }\n            }\n            else {\n                throw new Error(this.type + \" '\" + this.source + \"': can not transition to '\" + toState + \"', expecting state '\" + fromState1 + \"'\" + (fromState2 ? ' or \\'' + fromState2 + '\\'' : '') + \", was '\" + this._state + \"'.\");\n            }\n        };\n        ZoneTask.prototype.toString = function () {\n            if (this.data && typeof this.data.handleId !== 'undefined') {\n                return this.data.handleId.toString();\n            }\n            else {\n                return Object.prototype.toString.call(this);\n            }\n        };\n        // add toJSON method to prevent cyclic error when\n        // call JSON.stringify(zoneTask)\n        ZoneTask.prototype.toJSON = function () {\n            return {\n                type: this.type,\n                state: this.state,\n                source: this.source,\n                zone: this.zone.name,\n                runCount: this.runCount\n            };\n        };\n        return ZoneTask;\n    }());\n    //////////////////////////////////////////////////////\n    //////////////////////////////////////////////////////\n    ///  MICROTASK QUEUE\n    //////////////////////////////////////////////////////\n    //////////////////////////////////////////////////////\n    var symbolSetTimeout = __symbol__('setTimeout');\n    var symbolPromise = __symbol__('Promise');\n    var symbolThen = __symbol__('then');\n    var _microTaskQueue = [];\n    var _isDrainingMicrotaskQueue = false;\n    var nativeMicroTaskQueuePromise;\n    function scheduleMicroTask(task) {\n        // if we are not running in any task, and there has not been anything scheduled\n        // we must bootstrap the initial task creation by manually scheduling the drain\n        if (_numberOfNestedTaskFrames === 0 && _microTaskQueue.length === 0) {\n            // We are not running in Task, so we need to kickstart the microtask queue.\n            if (!nativeMicroTaskQueuePromise) {\n                if (global[symbolPromise]) {\n                    nativeMicroTaskQueuePromise = global[symbolPromise].resolve(0);\n                }\n            }\n            if (nativeMicroTaskQueuePromise) {\n                var nativeThen = nativeMicroTaskQueuePromise[symbolThen];\n                if (!nativeThen) {\n                    // native Promise is not patchable, we need to use `then` directly\n                    // issue 1078\n                    nativeThen = nativeMicroTaskQueuePromise['then'];\n                }\n                nativeThen.call(nativeMicroTaskQueuePromise, drainMicroTaskQueue);\n            }\n            else {\n                global[symbolSetTimeout](drainMicroTaskQueue, 0);\n            }\n        }\n        task && _microTaskQueue.push(task);\n    }\n    function drainMicroTaskQueue() {\n        if (!_isDrainingMicrotaskQueue) {\n            _isDrainingMicrotaskQueue = true;\n            while (_microTaskQueue.length) {\n                var queue = _microTaskQueue;\n                _microTaskQueue = [];\n                for (var i = 0; i < queue.length; i++) {\n                    var task = queue[i];\n                    try {\n                        task.zone.runTask(task, null, null);\n                    }\n                    catch (error) {\n                        _api.onUnhandledError(error);\n                    }\n                }\n            }\n            _api.microtaskDrainDone();\n            _isDrainingMicrotaskQueue = false;\n        }\n    }\n    //////////////////////////////////////////////////////\n    //////////////////////////////////////////////////////\n    ///  BOOTSTRAP\n    //////////////////////////////////////////////////////\n    //////////////////////////////////////////////////////\n    var NO_ZONE = { name: 'NO ZONE' };\n    var notScheduled = 'notScheduled', scheduling = 'scheduling', scheduled = 'scheduled', running = 'running', canceling = 'canceling', unknown = 'unknown';\n    var microTask = 'microTask', macroTask = 'macroTask', eventTask = 'eventTask';\n    var patches = {};\n    var _api = {\n        symbol: __symbol__,\n        currentZoneFrame: function () { return _currentZoneFrame; },\n        onUnhandledError: noop,\n        microtaskDrainDone: noop,\n        scheduleMicroTask: scheduleMicroTask,\n        showUncaughtError: function () { return !Zone[__symbol__('ignoreConsoleErrorUncaughtError')]; },\n        patchEventTarget: function () { return []; },\n        patchOnProperties: noop,\n        patchMethod: function () { return noop; },\n        bindArguments: function () { return []; },\n        patchThen: function () { return noop; },\n        setNativePromise: function (NativePromise) {\n            // sometimes NativePromise.resolve static function\n            // is not ready yet, (such as core-js/es6.promise)\n            // so we need to check here.\n            if (NativePromise && typeof NativePromise.resolve === 'function') {\n                nativeMicroTaskQueuePromise = NativePromise.resolve(0);\n            }\n        },\n    };\n    var _currentZoneFrame = { parent: null, zone: new Zone(null, null) };\n    var _currentTask = null;\n    var _numberOfNestedTaskFrames = 0;\n    function noop() { }\n    function __symbol__(name) {\n        return '__zone_symbol__' + name;\n    }\n    performanceMeasure('Zone', 'Zone');\n    return global['Zone'] = Zone;\n})(typeof window !== 'undefined' && window || typeof self !== 'undefined' && self || global);\n\nvar __values = (undefined && undefined.__values) || function (o) {\n    var m = typeof Symbol === \"function\" && o[Symbol.iterator], i = 0;\n    if (m) return m.call(o);\n    return {\n        next: function () {\n            if (o && i >= o.length) o = void 0;\n            return { value: o && o[i++], done: !o };\n        }\n    };\n};\nZone.__load_patch('ZoneAwarePromise', function (global, Zone, api) {\n    var ObjectGetOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;\n    var ObjectDefineProperty = Object.defineProperty;\n    function readableObjectToString(obj) {\n        if (obj && obj.toString === Object.prototype.toString) {\n            var className = obj.constructor && obj.constructor.name;\n            return (className ? className : '') + ': ' + JSON.stringify(obj);\n        }\n        return obj ? obj.toString() : Object.prototype.toString.call(obj);\n    }\n    var __symbol__ = api.symbol;\n    var _uncaughtPromiseErrors = [];\n    var symbolPromise = __symbol__('Promise');\n    var symbolThen = __symbol__('then');\n    var creationTrace = '__creationTrace__';\n    api.onUnhandledError = function (e) {\n        if (api.showUncaughtError()) {\n            var rejection = e && e.rejection;\n            if (rejection) {\n                console.error('Unhandled Promise rejection:', rejection instanceof Error ? rejection.message : rejection, '; Zone:', e.zone.name, '; Task:', e.task && e.task.source, '; Value:', rejection, rejection instanceof Error ? rejection.stack : undefined);\n            }\n            else {\n                console.error(e);\n            }\n        }\n    };\n    api.microtaskDrainDone = function () {\n        while (_uncaughtPromiseErrors.length) {\n            var _loop_1 = function () {\n                var uncaughtPromiseError = _uncaughtPromiseErrors.shift();\n                try {\n                    uncaughtPromiseError.zone.runGuarded(function () {\n                        throw uncaughtPromiseError;\n                    });\n                }\n                catch (error) {\n                    handleUnhandledRejection(error);\n                }\n            };\n            while (_uncaughtPromiseErrors.length) {\n                _loop_1();\n            }\n        }\n    };\n    var UNHANDLED_PROMISE_REJECTION_HANDLER_SYMBOL = __symbol__('unhandledPromiseRejectionHandler');\n    function handleUnhandledRejection(e) {\n        api.onUnhandledError(e);\n        try {\n            var handler = Zone[UNHANDLED_PROMISE_REJECTION_HANDLER_SYMBOL];\n            if (handler && typeof handler === 'function') {\n                handler.call(this, e);\n            }\n        }\n        catch (err) {\n        }\n    }\n    function isThenable(value) {\n        return value && value.then;\n    }\n    function forwardResolution(value) {\n        return value;\n    }\n    function forwardRejection(rejection) {\n        return ZoneAwarePromise.reject(rejection);\n    }\n    var symbolState = __symbol__('state');\n    var symbolValue = __symbol__('value');\n    var symbolFinally = __symbol__('finally');\n    var symbolParentPromiseValue = __symbol__('parentPromiseValue');\n    var symbolParentPromiseState = __symbol__('parentPromiseState');\n    var source = 'Promise.then';\n    var UNRESOLVED = null;\n    var RESOLVED = true;\n    var REJECTED = false;\n    var REJECTED_NO_CATCH = 0;\n    function makeResolver(promise, state) {\n        return function (v) {\n            try {\n                resolvePromise(promise, state, v);\n            }\n            catch (err) {\n                resolvePromise(promise, false, err);\n            }\n            // Do not return value or you will break the Promise spec.\n        };\n    }\n    var once = function () {\n        var wasCalled = false;\n        return function wrapper(wrappedFunction) {\n            return function () {\n                if (wasCalled) {\n                    return;\n                }\n                wasCalled = true;\n                wrappedFunction.apply(null, arguments);\n            };\n        };\n    };\n    var TYPE_ERROR = 'Promise resolved with itself';\n    var CURRENT_TASK_TRACE_SYMBOL = __symbol__('currentTaskTrace');\n    // Promise Resolution\n    function resolvePromise(promise, state, value) {\n        var onceWrapper = once();\n        if (promise === value) {\n            throw new TypeError(TYPE_ERROR);\n        }\n        if (promise[symbolState] === UNRESOLVED) {\n            // should only get value.then once based on promise spec.\n            var then = null;\n            try {\n                if (typeof value === 'object' || typeof value === 'function') {\n                    then = value && value.then;\n                }\n            }\n            catch (err) {\n                onceWrapper(function () {\n                    resolvePromise(promise, false, err);\n                })();\n                return promise;\n            }\n            // if (value instanceof ZoneAwarePromise) {\n            if (state !== REJECTED && value instanceof ZoneAwarePromise &&\n                value.hasOwnProperty(symbolState) && value.hasOwnProperty(symbolValue) &&\n                value[symbolState] !== UNRESOLVED) {\n                clearRejectedNoCatch(value);\n                resolvePromise(promise, value[symbolState], value[symbolValue]);\n            }\n            else if (state !== REJECTED && typeof then === 'function') {\n                try {\n                    then.call(value, onceWrapper(makeResolver(promise, state)), onceWrapper(makeResolver(promise, false)));\n                }\n                catch (err) {\n                    onceWrapper(function () {\n                        resolvePromise(promise, false, err);\n                    })();\n                }\n            }\n            else {\n                promise[symbolState] = state;\n                var queue = promise[symbolValue];\n                promise[symbolValue] = value;\n                if (promise[symbolFinally] === symbolFinally) {\n                    // the promise is generated by Promise.prototype.finally\n                    if (state === RESOLVED) {\n                        // the state is resolved, should ignore the value\n                        // and use parent promise value\n                        promise[symbolState] = promise[symbolParentPromiseState];\n                        promise[symbolValue] = promise[symbolParentPromiseValue];\n                    }\n                }\n                // record task information in value when error occurs, so we can\n                // do some additional work such as render longStackTrace\n                if (state === REJECTED && value instanceof Error) {\n                    // check if longStackTraceZone is here\n                    var trace = Zone.currentTask && Zone.currentTask.data &&\n                        Zone.currentTask.data[creationTrace];\n                    if (trace) {\n                        // only keep the long stack trace into error when in longStackTraceZone\n                        ObjectDefineProperty(value, CURRENT_TASK_TRACE_SYMBOL, { configurable: true, enumerable: false, writable: true, value: trace });\n                    }\n                }\n                for (var i = 0; i < queue.length;) {\n                    scheduleResolveOrReject(promise, queue[i++], queue[i++], queue[i++], queue[i++]);\n                }\n                if (queue.length == 0 && state == REJECTED) {\n                    promise[symbolState] = REJECTED_NO_CATCH;\n                    try {\n                        // try to print more readable error log\n                        throw new Error('Uncaught (in promise): ' + readableObjectToString(value) +\n                            (value && value.stack ? '\\n' + value.stack : ''));\n                    }\n                    catch (err) {\n                        var error_1 = err;\n                        error_1.rejection = value;\n                        error_1.promise = promise;\n                        error_1.zone = Zone.current;\n                        error_1.task = Zone.currentTask;\n                        _uncaughtPromiseErrors.push(error_1);\n                        api.scheduleMicroTask(); // to make sure that it is running\n                    }\n                }\n            }\n        }\n        // Resolving an already resolved promise is a noop.\n        return promise;\n    }\n    var REJECTION_HANDLED_HANDLER = __symbol__('rejectionHandledHandler');\n    function clearRejectedNoCatch(promise) {\n        if (promise[symbolState] === REJECTED_NO_CATCH) {\n            // if the promise is rejected no catch status\n            // and queue.length > 0, means there is a error handler\n            // here to handle the rejected promise, we should trigger\n            // windows.rejectionhandled eventHandler or nodejs rejectionHandled\n            // eventHandler\n            try {\n                var handler = Zone[REJECTION_HANDLED_HANDLER];\n                if (handler && typeof handler === 'function') {\n                    handler.call(this, { rejection: promise[symbolValue], promise: promise });\n                }\n            }\n            catch (err) {\n            }\n            promise[symbolState] = REJECTED;\n            for (var i = 0; i < _uncaughtPromiseErrors.length; i++) {\n                if (promise === _uncaughtPromiseErrors[i].promise) {\n                    _uncaughtPromiseErrors.splice(i, 1);\n                }\n            }\n        }\n    }\n    function scheduleResolveOrReject(promise, zone, chainPromise, onFulfilled, onRejected) {\n        clearRejectedNoCatch(promise);\n        var promiseState = promise[symbolState];\n        var delegate = promiseState ?\n            (typeof onFulfilled === 'function') ? onFulfilled : forwardResolution :\n            (typeof onRejected === 'function') ? onRejected : forwardRejection;\n        zone.scheduleMicroTask(source, function () {\n            try {\n                var parentPromiseValue = promise[symbolValue];\n                var isFinallyPromise = chainPromise && symbolFinally === chainPromise[symbolFinally];\n                if (isFinallyPromise) {\n                    // if the promise is generated from finally call, keep parent promise's state and value\n                    chainPromise[symbolParentPromiseValue] = parentPromiseValue;\n                    chainPromise[symbolParentPromiseState] = promiseState;\n                }\n                // should not pass value to finally callback\n                var value = zone.run(delegate, undefined, isFinallyPromise && delegate !== forwardRejection && delegate !== forwardResolution ?\n                    [] :\n                    [parentPromiseValue]);\n                resolvePromise(chainPromise, true, value);\n            }\n            catch (error) {\n                // if error occurs, should always return this error\n                resolvePromise(chainPromise, false, error);\n            }\n        }, chainPromise);\n    }\n    var ZONE_AWARE_PROMISE_TO_STRING = 'function ZoneAwarePromise() { [native code] }';\n    var ZoneAwarePromise = /** @class */ (function () {\n        function ZoneAwarePromise(executor) {\n            var promise = this;\n            if (!(promise instanceof ZoneAwarePromise)) {\n                throw new Error('Must be an instanceof Promise.');\n            }\n            promise[symbolState] = UNRESOLVED;\n            promise[symbolValue] = []; // queue;\n            try {\n                executor && executor(makeResolver(promise, RESOLVED), makeResolver(promise, REJECTED));\n            }\n            catch (error) {\n                resolvePromise(promise, false, error);\n            }\n        }\n        ZoneAwarePromise.toString = function () {\n            return ZONE_AWARE_PROMISE_TO_STRING;\n        };\n        ZoneAwarePromise.resolve = function (value) {\n            return resolvePromise(new this(null), RESOLVED, value);\n        };\n        ZoneAwarePromise.reject = function (error) {\n            return resolvePromise(new this(null), REJECTED, error);\n        };\n        ZoneAwarePromise.race = function (values) {\n            var e_1, _a;\n            var resolve;\n            var reject;\n            var promise = new this(function (res, rej) {\n                resolve = res;\n                reject = rej;\n            });\n            function onResolve(value) {\n                promise && (promise = null || resolve(value));\n            }\n            function onReject(error) {\n                promise && (promise = null || reject(error));\n            }\n            try {\n                for (var values_1 = __values(values), values_1_1 = values_1.next(); !values_1_1.done; values_1_1 = values_1.next()) {\n                    var value = values_1_1.value;\n                    if (!isThenable(value)) {\n                        value = this.resolve(value);\n                    }\n                    value.then(onResolve, onReject);\n                }\n            }\n            catch (e_1_1) { e_1 = { error: e_1_1 }; }\n            finally {\n                try {\n                    if (values_1_1 && !values_1_1.done && (_a = values_1.return)) _a.call(values_1);\n                }\n                finally { if (e_1) throw e_1.error; }\n            }\n            return promise;\n        };\n        ZoneAwarePromise.all = function (values) {\n            var e_2, _a;\n            var resolve;\n            var reject;\n            var promise = new this(function (res, rej) {\n                resolve = res;\n                reject = rej;\n            });\n            // Start at 2 to prevent prematurely resolving if .then is called immediately.\n            var unresolvedCount = 2;\n            var valueIndex = 0;\n            var resolvedValues = [];\n            var _loop_2 = function (value) {\n                if (!isThenable(value)) {\n                    value = this_1.resolve(value);\n                }\n                var curValueIndex = valueIndex;\n                value.then(function (value) {\n                    resolvedValues[curValueIndex] = value;\n                    unresolvedCount--;\n                    if (unresolvedCount === 0) {\n                        resolve(resolvedValues);\n                    }\n                }, reject);\n                unresolvedCount++;\n                valueIndex++;\n            };\n            var this_1 = this;\n            try {\n                for (var values_2 = __values(values), values_2_1 = values_2.next(); !values_2_1.done; values_2_1 = values_2.next()) {\n                    var value = values_2_1.value;\n                    _loop_2(value);\n                }\n            }\n            catch (e_2_1) { e_2 = { error: e_2_1 }; }\n            finally {\n                try {\n                    if (values_2_1 && !values_2_1.done && (_a = values_2.return)) _a.call(values_2);\n                }\n                finally { if (e_2) throw e_2.error; }\n            }\n            // Make the unresolvedCount zero-based again.\n            unresolvedCount -= 2;\n            if (unresolvedCount === 0) {\n                resolve(resolvedValues);\n            }\n            return promise;\n        };\n        ZoneAwarePromise.prototype.then = function (onFulfilled, onRejected) {\n            var chainPromise = new this.constructor(null);\n            var zone = Zone.current;\n            if (this[symbolState] == UNRESOLVED) {\n                this[symbolValue].push(zone, chainPromise, onFulfilled, onRejected);\n            }\n            else {\n                scheduleResolveOrReject(this, zone, chainPromise, onFulfilled, onRejected);\n            }\n            return chainPromise;\n        };\n        ZoneAwarePromise.prototype.catch = function (onRejected) {\n            return this.then(null, onRejected);\n        };\n        ZoneAwarePromise.prototype.finally = function (onFinally) {\n            var chainPromise = new this.constructor(null);\n            chainPromise[symbolFinally] = symbolFinally;\n            var zone = Zone.current;\n            if (this[symbolState] == UNRESOLVED) {\n                this[symbolValue].push(zone, chainPromise, onFinally, onFinally);\n            }\n            else {\n                scheduleResolveOrReject(this, zone, chainPromise, onFinally, onFinally);\n            }\n            return chainPromise;\n        };\n        return ZoneAwarePromise;\n    }());\n    // Protect against aggressive optimizers dropping seemingly unused properties.\n    // E.g. Closure Compiler in advanced mode.\n    ZoneAwarePromise['resolve'] = ZoneAwarePromise.resolve;\n    ZoneAwarePromise['reject'] = ZoneAwarePromise.reject;\n    ZoneAwarePromise['race'] = ZoneAwarePromise.race;\n    ZoneAwarePromise['all'] = ZoneAwarePromise.all;\n    var NativePromise = global[symbolPromise] = global['Promise'];\n    var ZONE_AWARE_PROMISE = Zone.__symbol__('ZoneAwarePromise');\n    var desc = ObjectGetOwnPropertyDescriptor(global, 'Promise');\n    if (!desc || desc.configurable) {\n        desc && delete desc.writable;\n        desc && delete desc.value;\n        if (!desc) {\n            desc = { configurable: true, enumerable: true };\n        }\n        desc.get = function () {\n            // if we already set ZoneAwarePromise, use patched one\n            // otherwise return native one.\n            return global[ZONE_AWARE_PROMISE] ? global[ZONE_AWARE_PROMISE] : global[symbolPromise];\n        };\n        desc.set = function (NewNativePromise) {\n            if (NewNativePromise === ZoneAwarePromise) {\n                // if the NewNativePromise is ZoneAwarePromise\n                // save to global\n                global[ZONE_AWARE_PROMISE] = NewNativePromise;\n            }\n            else {\n                // if the NewNativePromise is not ZoneAwarePromise\n                // for example: after load zone.js, some library just\n                // set es6-promise to global, if we set it to global\n                // directly, assertZonePatched will fail and angular\n                // will not loaded, so we just set the NewNativePromise\n                // to global[symbolPromise], so the result is just like\n                // we load ES6 Promise before zone.js\n                global[symbolPromise] = NewNativePromise;\n                if (!NewNativePromise.prototype[symbolThen]) {\n                    patchThen(NewNativePromise);\n                }\n                api.setNativePromise(NewNativePromise);\n            }\n        };\n        ObjectDefineProperty(global, 'Promise', desc);\n    }\n    global['Promise'] = ZoneAwarePromise;\n    var symbolThenPatched = __symbol__('thenPatched');\n    function patchThen(Ctor) {\n        var proto = Ctor.prototype;\n        var prop = ObjectGetOwnPropertyDescriptor(proto, 'then');\n        if (prop && (prop.writable === false || !prop.configurable)) {\n            // check Ctor.prototype.then propertyDescriptor is writable or not\n            // in meteor env, writable is false, we should ignore such case\n            return;\n        }\n        var originalThen = proto.then;\n        // Keep a reference to the original method.\n        proto[symbolThen] = originalThen;\n        Ctor.prototype.then = function (onResolve, onReject) {\n            var _this = this;\n            var wrapped = new ZoneAwarePromise(function (resolve, reject) {\n                originalThen.call(_this, resolve, reject);\n            });\n            return wrapped.then(onResolve, onReject);\n        };\n        Ctor[symbolThenPatched] = true;\n    }\n    api.patchThen = patchThen;\n    if (NativePromise) {\n        patchThen(NativePromise);\n    }\n    // This is not part of public API, but it is useful for tests, so we expose it.\n    Promise[Zone.__symbol__('uncaughtPromiseErrors')] = _uncaughtPromiseErrors;\n    return ZoneAwarePromise;\n});\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nZone.__load_patch('fetch', function (global, Zone, api) {\n    var fetch = global['fetch'];\n    var ZoneAwarePromise = global.Promise;\n    var symbolThenPatched = api.symbol('thenPatched');\n    var fetchTaskScheduling = api.symbol('fetchTaskScheduling');\n    var fetchTaskAborting = api.symbol('fetchTaskAborting');\n    if (typeof fetch !== 'function') {\n        return;\n    }\n    var OriginalAbortController = global['AbortController'];\n    var supportAbort = typeof OriginalAbortController === 'function';\n    var abortNative = null;\n    if (supportAbort) {\n        global['AbortController'] = function () {\n            var abortController = new OriginalAbortController();\n            var signal = abortController.signal;\n            signal.abortController = abortController;\n            return abortController;\n        };\n        abortNative = api.patchMethod(OriginalAbortController.prototype, 'abort', function (delegate) { return function (self, args) {\n            if (self.task) {\n                return self.task.zone.cancelTask(self.task);\n            }\n            return delegate.apply(self, args);\n        }; });\n    }\n    var placeholder = function () { };\n    global['fetch'] = function () {\n        var _this = this;\n        var args = Array.prototype.slice.call(arguments);\n        var options = args.length > 1 ? args[1] : null;\n        var signal = options && options.signal;\n        return new Promise(function (res, rej) {\n            var task = Zone.current.scheduleMacroTask('fetch', placeholder, args, function () {\n                var fetchPromise;\n                var zone = Zone.current;\n                try {\n                    zone[fetchTaskScheduling] = true;\n                    fetchPromise = fetch.apply(_this, args);\n                }\n                catch (error) {\n                    rej(error);\n                    return;\n                }\n                finally {\n                    zone[fetchTaskScheduling] = false;\n                }\n                if (!(fetchPromise instanceof ZoneAwarePromise)) {\n                    var ctor = fetchPromise.constructor;\n                    if (!ctor[symbolThenPatched]) {\n                        api.patchThen(ctor);\n                    }\n                }\n                fetchPromise.then(function (resource) {\n                    if (task.state !== 'notScheduled') {\n                        task.invoke();\n                    }\n                    res(resource);\n                }, function (error) {\n                    if (task.state !== 'notScheduled') {\n                        task.invoke();\n                    }\n                    rej(error);\n                });\n            }, function () {\n                if (!supportAbort) {\n                    rej('No AbortController supported, can not cancel fetch');\n                    return;\n                }\n                if (signal && signal.abortController && !signal.aborted &&\n                    typeof signal.abortController.abort === 'function' && abortNative) {\n                    try {\n                        Zone.current[fetchTaskAborting] = true;\n                        abortNative.call(signal.abortController);\n                    }\n                    finally {\n                        Zone.current[fetchTaskAborting] = false;\n                    }\n                }\n                else {\n                    rej('cancel fetch need a AbortController.signal');\n                }\n            });\n            if (signal && signal.abortController) {\n                signal.abortController.task = task;\n            }\n        });\n    };\n});\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Suppress closure compiler errors about unknown 'Zone' variable\n * @fileoverview\n * @suppress {undefinedVars,globalThis,missingRequire}\n */\n// issue #989, to reduce bundle size, use short name\n/** Object.getOwnPropertyDescriptor */\nvar ObjectGetOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;\n/** Object.defineProperty */\nvar ObjectDefineProperty = Object.defineProperty;\n/** Object.getPrototypeOf */\nvar ObjectGetPrototypeOf = Object.getPrototypeOf;\n/** Object.create */\nvar ObjectCreate = Object.create;\n/** Array.prototype.slice */\nvar ArraySlice = Array.prototype.slice;\n/** addEventListener string const */\nvar ADD_EVENT_LISTENER_STR = 'addEventListener';\n/** removeEventListener string const */\nvar REMOVE_EVENT_LISTENER_STR = 'removeEventListener';\n/** zoneSymbol addEventListener */\nvar ZONE_SYMBOL_ADD_EVENT_LISTENER = Zone.__symbol__(ADD_EVENT_LISTENER_STR);\n/** zoneSymbol removeEventListener */\nvar ZONE_SYMBOL_REMOVE_EVENT_LISTENER = Zone.__symbol__(REMOVE_EVENT_LISTENER_STR);\n/** true string const */\nvar TRUE_STR = 'true';\n/** false string const */\nvar FALSE_STR = 'false';\n/** __zone_symbol__ string const */\nvar ZONE_SYMBOL_PREFIX = '__zone_symbol__';\nfunction wrapWithCurrentZone(callback, source) {\n    return Zone.current.wrap(callback, source);\n}\nfunction scheduleMacroTaskWithCurrentZone(source, callback, data, customSchedule, customCancel) {\n    return Zone.current.scheduleMacroTask(source, callback, data, customSchedule, customCancel);\n}\nvar zoneSymbol = Zone.__symbol__;\nvar isWindowExists = typeof window !== 'undefined';\nvar internalWindow = isWindowExists ? window : undefined;\nvar _global = isWindowExists && internalWindow || typeof self === 'object' && self || global;\nvar REMOVE_ATTRIBUTE = 'removeAttribute';\nvar NULL_ON_PROP_VALUE = [null];\nfunction bindArguments(args, source) {\n    for (var i = args.length - 1; i >= 0; i--) {\n        if (typeof args[i] === 'function') {\n            args[i] = wrapWithCurrentZone(args[i], source + '_' + i);\n        }\n    }\n    return args;\n}\nfunction patchPrototype(prototype, fnNames) {\n    var source = prototype.constructor['name'];\n    var _loop_1 = function (i) {\n        var name_1 = fnNames[i];\n        var delegate = prototype[name_1];\n        if (delegate) {\n            var prototypeDesc = ObjectGetOwnPropertyDescriptor(prototype, name_1);\n            if (!isPropertyWritable(prototypeDesc)) {\n                return \"continue\";\n            }\n            prototype[name_1] = (function (delegate) {\n                var patched = function () {\n                    return delegate.apply(this, bindArguments(arguments, source + '.' + name_1));\n                };\n                attachOriginToPatched(patched, delegate);\n                return patched;\n            })(delegate);\n        }\n    };\n    for (var i = 0; i < fnNames.length; i++) {\n        _loop_1(i);\n    }\n}\nfunction isPropertyWritable(propertyDesc) {\n    if (!propertyDesc) {\n        return true;\n    }\n    if (propertyDesc.writable === false) {\n        return false;\n    }\n    return !(typeof propertyDesc.get === 'function' && typeof propertyDesc.set === 'undefined');\n}\nvar isWebWorker = (typeof WorkerGlobalScope !== 'undefined' && self instanceof WorkerGlobalScope);\n// Make sure to access `process` through `_global` so that WebPack does not accidentally browserify\n// this code.\nvar isNode = (!('nw' in _global) && typeof _global.process !== 'undefined' &&\n    {}.toString.call(_global.process) === '[object process]');\nvar isBrowser = !isNode && !isWebWorker && !!(isWindowExists && internalWindow['HTMLElement']);\n// we are in electron of nw, so we are both browser and nodejs\n// Make sure to access `process` through `_global` so that WebPack does not accidentally browserify\n// this code.\nvar isMix = typeof _global.process !== 'undefined' &&\n    {}.toString.call(_global.process) === '[object process]' && !isWebWorker &&\n    !!(isWindowExists && internalWindow['HTMLElement']);\nvar zoneSymbolEventNames = {};\nvar wrapFn = function (event) {\n    // https://github.com/angular/zone.js/issues/911, in IE, sometimes\n    // event will be undefined, so we need to use window.event\n    event = event || _global.event;\n    if (!event) {\n        return;\n    }\n    var eventNameSymbol = zoneSymbolEventNames[event.type];\n    if (!eventNameSymbol) {\n        eventNameSymbol = zoneSymbolEventNames[event.type] = zoneSymbol('ON_PROPERTY' + event.type);\n    }\n    var target = this || event.target || _global;\n    var listener = target[eventNameSymbol];\n    var result;\n    if (isBrowser && target === internalWindow && event.type === 'error') {\n        // window.onerror have different signiture\n        // https://developer.mozilla.org/en-US/docs/Web/API/GlobalEventHandlers/onerror#window.onerror\n        // and onerror callback will prevent default when callback return true\n        var errorEvent = event;\n        result = listener &&\n            listener.call(this, errorEvent.message, errorEvent.filename, errorEvent.lineno, errorEvent.colno, errorEvent.error);\n        if (result === true) {\n            event.preventDefault();\n        }\n    }\n    else {\n        result = listener && listener.apply(this, arguments);\n        if (result != undefined && !result) {\n            event.preventDefault();\n        }\n    }\n    return result;\n};\nfunction patchProperty(obj, prop, prototype) {\n    var desc = ObjectGetOwnPropertyDescriptor(obj, prop);\n    if (!desc && prototype) {\n        // when patch window object, use prototype to check prop exist or not\n        var prototypeDesc = ObjectGetOwnPropertyDescriptor(prototype, prop);\n        if (prototypeDesc) {\n            desc = { enumerable: true, configurable: true };\n        }\n    }\n    // if the descriptor not exists or is not configurable\n    // just return\n    if (!desc || !desc.configurable) {\n        return;\n    }\n    var onPropPatchedSymbol = zoneSymbol('on' + prop + 'patched');\n    if (obj.hasOwnProperty(onPropPatchedSymbol) && obj[onPropPatchedSymbol]) {\n        return;\n    }\n    // A property descriptor cannot have getter/setter and be writable\n    // deleting the writable and value properties avoids this error:\n    //\n    // TypeError: property descriptors must not specify a value or be writable when a\n    // getter or setter has been specified\n    delete desc.writable;\n    delete desc.value;\n    var originalDescGet = desc.get;\n    var originalDescSet = desc.set;\n    // substr(2) cuz 'onclick' -> 'click', etc\n    var eventName = prop.substr(2);\n    var eventNameSymbol = zoneSymbolEventNames[eventName];\n    if (!eventNameSymbol) {\n        eventNameSymbol = zoneSymbolEventNames[eventName] = zoneSymbol('ON_PROPERTY' + eventName);\n    }\n    desc.set = function (newValue) {\n        // in some of windows's onproperty callback, this is undefined\n        // so we need to check it\n        var target = this;\n        if (!target && obj === _global) {\n            target = _global;\n        }\n        if (!target) {\n            return;\n        }\n        var previousValue = target[eventNameSymbol];\n        if (previousValue) {\n            target.removeEventListener(eventName, wrapFn);\n        }\n        // issue #978, when onload handler was added before loading zone.js\n        // we should remove it with originalDescSet\n        if (originalDescSet) {\n            originalDescSet.apply(target, NULL_ON_PROP_VALUE);\n        }\n        if (typeof newValue === 'function') {\n            target[eventNameSymbol] = newValue;\n            target.addEventListener(eventName, wrapFn, false);\n        }\n        else {\n            target[eventNameSymbol] = null;\n        }\n    };\n    // The getter would return undefined for unassigned properties but the default value of an\n    // unassigned property is null\n    desc.get = function () {\n        // in some of windows's onproperty callback, this is undefined\n        // so we need to check it\n        var target = this;\n        if (!target && obj === _global) {\n            target = _global;\n        }\n        if (!target) {\n            return null;\n        }\n        var listener = target[eventNameSymbol];\n        if (listener) {\n            return listener;\n        }\n        else if (originalDescGet) {\n            // result will be null when use inline event attribute,\n            // such as <button onclick=\"func();\">OK</button>\n            // because the onclick function is internal raw uncompiled handler\n            // the onclick will be evaluated when first time event was triggered or\n            // the property is accessed, https://github.com/angular/zone.js/issues/525\n            // so we should use original native get to retrieve the handler\n            var value = originalDescGet && originalDescGet.call(this);\n            if (value) {\n                desc.set.call(this, value);\n                if (typeof target[REMOVE_ATTRIBUTE] === 'function') {\n                    target.removeAttribute(prop);\n                }\n                return value;\n            }\n        }\n        return null;\n    };\n    ObjectDefineProperty(obj, prop, desc);\n    obj[onPropPatchedSymbol] = true;\n}\nfunction patchOnProperties(obj, properties, prototype) {\n    if (properties) {\n        for (var i = 0; i < properties.length; i++) {\n            patchProperty(obj, 'on' + properties[i], prototype);\n        }\n    }\n    else {\n        var onProperties = [];\n        for (var prop in obj) {\n            if (prop.substr(0, 2) == 'on') {\n                onProperties.push(prop);\n            }\n        }\n        for (var j = 0; j < onProperties.length; j++) {\n            patchProperty(obj, onProperties[j], prototype);\n        }\n    }\n}\nvar originalInstanceKey = zoneSymbol('originalInstance');\n// wrap some native API on `window`\nfunction patchClass(className) {\n    var OriginalClass = _global[className];\n    if (!OriginalClass)\n        return;\n    // keep original class in global\n    _global[zoneSymbol(className)] = OriginalClass;\n    _global[className] = function () {\n        var a = bindArguments(arguments, className);\n        switch (a.length) {\n            case 0:\n                this[originalInstanceKey] = new OriginalClass();\n                break;\n            case 1:\n                this[originalInstanceKey] = new OriginalClass(a[0]);\n                break;\n            case 2:\n                this[originalInstanceKey] = new OriginalClass(a[0], a[1]);\n                break;\n            case 3:\n                this[originalInstanceKey] = new OriginalClass(a[0], a[1], a[2]);\n                break;\n            case 4:\n                this[originalInstanceKey] = new OriginalClass(a[0], a[1], a[2], a[3]);\n                break;\n            default:\n                throw new Error('Arg list too long.');\n        }\n    };\n    // attach original delegate to patched function\n    attachOriginToPatched(_global[className], OriginalClass);\n    var instance = new OriginalClass(function () { });\n    var prop;\n    for (prop in instance) {\n        // https://bugs.webkit.org/show_bug.cgi?id=44721\n        if (className === 'XMLHttpRequest' && prop === 'responseBlob')\n            continue;\n        (function (prop) {\n            if (typeof instance[prop] === 'function') {\n                _global[className].prototype[prop] = function () {\n                    return this[originalInstanceKey][prop].apply(this[originalInstanceKey], arguments);\n                };\n            }\n            else {\n                ObjectDefineProperty(_global[className].prototype, prop, {\n                    set: function (fn) {\n                        if (typeof fn === 'function') {\n                            this[originalInstanceKey][prop] = wrapWithCurrentZone(fn, className + '.' + prop);\n                            // keep callback in wrapped function so we can\n                            // use it in Function.prototype.toString to return\n                            // the native one.\n                            attachOriginToPatched(this[originalInstanceKey][prop], fn);\n                        }\n                        else {\n                            this[originalInstanceKey][prop] = fn;\n                        }\n                    },\n                    get: function () {\n                        return this[originalInstanceKey][prop];\n                    }\n                });\n            }\n        }(prop));\n    }\n    for (prop in OriginalClass) {\n        if (prop !== 'prototype' && OriginalClass.hasOwnProperty(prop)) {\n            _global[className][prop] = OriginalClass[prop];\n        }\n    }\n}\nfunction copySymbolProperties(src, dest) {\n    if (typeof Object.getOwnPropertySymbols !== 'function') {\n        return;\n    }\n    var symbols = Object.getOwnPropertySymbols(src);\n    symbols.forEach(function (symbol) {\n        var desc = Object.getOwnPropertyDescriptor(src, symbol);\n        Object.defineProperty(dest, symbol, {\n            get: function () {\n                return src[symbol];\n            },\n            set: function (value) {\n                if (desc && (!desc.writable || typeof desc.set !== 'function')) {\n                    // if src[symbol] is not writable or not have a setter, just return\n                    return;\n                }\n                src[symbol] = value;\n            },\n            enumerable: desc ? desc.enumerable : true,\n            configurable: desc ? desc.configurable : true\n        });\n    });\n}\nvar shouldCopySymbolProperties = false;\n\nfunction patchMethod(target, name, patchFn) {\n    var proto = target;\n    while (proto && !proto.hasOwnProperty(name)) {\n        proto = ObjectGetPrototypeOf(proto);\n    }\n    if (!proto && target[name]) {\n        // somehow we did not find it, but we can see it. This happens on IE for Window properties.\n        proto = target;\n    }\n    var delegateName = zoneSymbol(name);\n    var delegate = null;\n    if (proto && !(delegate = proto[delegateName])) {\n        delegate = proto[delegateName] = proto[name];\n        // check whether proto[name] is writable\n        // some property is readonly in safari, such as HtmlCanvasElement.prototype.toBlob\n        var desc = proto && ObjectGetOwnPropertyDescriptor(proto, name);\n        if (isPropertyWritable(desc)) {\n            var patchDelegate_1 = patchFn(delegate, delegateName, name);\n            proto[name] = function () {\n                return patchDelegate_1(this, arguments);\n            };\n            attachOriginToPatched(proto[name], delegate);\n            if (shouldCopySymbolProperties) {\n                copySymbolProperties(delegate, proto[name]);\n            }\n        }\n    }\n    return delegate;\n}\n// TODO: @JiaLiPassion, support cancel task later if necessary\nfunction patchMacroTask(obj, funcName, metaCreator) {\n    var setNative = null;\n    function scheduleTask(task) {\n        var data = task.data;\n        data.args[data.cbIdx] = function () {\n            task.invoke.apply(this, arguments);\n        };\n        setNative.apply(data.target, data.args);\n        return task;\n    }\n    setNative = patchMethod(obj, funcName, function (delegate) { return function (self, args) {\n        var meta = metaCreator(self, args);\n        if (meta.cbIdx >= 0 && typeof args[meta.cbIdx] === 'function') {\n            return scheduleMacroTaskWithCurrentZone(meta.name, args[meta.cbIdx], meta, scheduleTask);\n        }\n        else {\n            // cause an error by calling it directly.\n            return delegate.apply(self, args);\n        }\n    }; });\n}\n\nfunction attachOriginToPatched(patched, original) {\n    patched[zoneSymbol('OriginalDelegate')] = original;\n}\nvar isDetectedIEOrEdge = false;\nvar ieOrEdge = false;\nfunction isIE() {\n    try {\n        var ua = internalWindow.navigator.userAgent;\n        if (ua.indexOf('MSIE ') !== -1 || ua.indexOf('Trident/') !== -1) {\n            return true;\n        }\n    }\n    catch (error) {\n    }\n    return false;\n}\nfunction isIEOrEdge() {\n    if (isDetectedIEOrEdge) {\n        return ieOrEdge;\n    }\n    isDetectedIEOrEdge = true;\n    try {\n        var ua = internalWindow.navigator.userAgent;\n        if (ua.indexOf('MSIE ') !== -1 || ua.indexOf('Trident/') !== -1 || ua.indexOf('Edge/') !== -1) {\n            ieOrEdge = true;\n        }\n        return ieOrEdge;\n    }\n    catch (error) {\n    }\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n// override Function.prototype.toString to make zone.js patched function\n// look like native function\nZone.__load_patch('toString', function (global) {\n    // patch Func.prototype.toString to let them look like native\n    var originalFunctionToString = Function.prototype.toString;\n    var ORIGINAL_DELEGATE_SYMBOL = zoneSymbol('OriginalDelegate');\n    var PROMISE_SYMBOL = zoneSymbol('Promise');\n    var ERROR_SYMBOL = zoneSymbol('Error');\n    var newFunctionToString = function toString() {\n        if (typeof this === 'function') {\n            var originalDelegate = this[ORIGINAL_DELEGATE_SYMBOL];\n            if (originalDelegate) {\n                if (typeof originalDelegate === 'function') {\n                    return originalFunctionToString.apply(this[ORIGINAL_DELEGATE_SYMBOL], arguments);\n                }\n                else {\n                    return Object.prototype.toString.call(originalDelegate);\n                }\n            }\n            if (this === Promise) {\n                var nativePromise = global[PROMISE_SYMBOL];\n                if (nativePromise) {\n                    return originalFunctionToString.apply(nativePromise, arguments);\n                }\n            }\n            if (this === Error) {\n                var nativeError = global[ERROR_SYMBOL];\n                if (nativeError) {\n                    return originalFunctionToString.apply(nativeError, arguments);\n                }\n            }\n        }\n        return originalFunctionToString.apply(this, arguments);\n    };\n    newFunctionToString[ORIGINAL_DELEGATE_SYMBOL] = originalFunctionToString;\n    Function.prototype.toString = newFunctionToString;\n    // patch Object.prototype.toString to let them look like native\n    var originalObjectToString = Object.prototype.toString;\n    var PROMISE_OBJECT_TO_STRING = '[object Promise]';\n    Object.prototype.toString = function () {\n        if (this instanceof Promise) {\n            return PROMISE_OBJECT_TO_STRING;\n        }\n        return originalObjectToString.apply(this, arguments);\n    };\n});\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @fileoverview\n * @suppress {missingRequire}\n */\nvar passiveSupported = false;\nif (typeof window !== 'undefined') {\n    try {\n        var options = Object.defineProperty({}, 'passive', {\n            get: function () {\n                passiveSupported = true;\n            }\n        });\n        window.addEventListener('test', options, options);\n        window.removeEventListener('test', options, options);\n    }\n    catch (err) {\n        passiveSupported = false;\n    }\n}\n// an identifier to tell ZoneTask do not create a new invoke closure\nvar OPTIMIZED_ZONE_EVENT_TASK_DATA = {\n    useG: true\n};\nvar zoneSymbolEventNames$1 = {};\nvar globalSources = {};\nvar EVENT_NAME_SYMBOL_REGX = /^__zone_symbol__(\\w+)(true|false)$/;\nvar IMMEDIATE_PROPAGATION_SYMBOL = ('__zone_symbol__propagationStopped');\nfunction patchEventTarget(_global, apis, patchOptions) {\n    var ADD_EVENT_LISTENER = (patchOptions && patchOptions.add) || ADD_EVENT_LISTENER_STR;\n    var REMOVE_EVENT_LISTENER = (patchOptions && patchOptions.rm) || REMOVE_EVENT_LISTENER_STR;\n    var LISTENERS_EVENT_LISTENER = (patchOptions && patchOptions.listeners) || 'eventListeners';\n    var REMOVE_ALL_LISTENERS_EVENT_LISTENER = (patchOptions && patchOptions.rmAll) || 'removeAllListeners';\n    var zoneSymbolAddEventListener = zoneSymbol(ADD_EVENT_LISTENER);\n    var ADD_EVENT_LISTENER_SOURCE = '.' + ADD_EVENT_LISTENER + ':';\n    var PREPEND_EVENT_LISTENER = 'prependListener';\n    var PREPEND_EVENT_LISTENER_SOURCE = '.' + PREPEND_EVENT_LISTENER + ':';\n    var invokeTask = function (task, target, event) {\n        // for better performance, check isRemoved which is set\n        // by removeEventListener\n        if (task.isRemoved) {\n            return;\n        }\n        var delegate = task.callback;\n        if (typeof delegate === 'object' && delegate.handleEvent) {\n            // create the bind version of handleEvent when invoke\n            task.callback = function (event) { return delegate.handleEvent(event); };\n            task.originalDelegate = delegate;\n        }\n        // invoke static task.invoke\n        task.invoke(task, target, [event]);\n        var options = task.options;\n        if (options && typeof options === 'object' && options.once) {\n            // if options.once is true, after invoke once remove listener here\n            // only browser need to do this, nodejs eventEmitter will cal removeListener\n            // inside EventEmitter.once\n            var delegate_1 = task.originalDelegate ? task.originalDelegate : task.callback;\n            target[REMOVE_EVENT_LISTENER].call(target, event.type, delegate_1, options);\n        }\n    };\n    // global shared zoneAwareCallback to handle all event callback with capture = false\n    var globalZoneAwareCallback = function (event) {\n        // https://github.com/angular/zone.js/issues/911, in IE, sometimes\n        // event will be undefined, so we need to use window.event\n        event = event || _global.event;\n        if (!event) {\n            return;\n        }\n        // event.target is needed for Samsung TV and SourceBuffer\n        // || global is needed https://github.com/angular/zone.js/issues/190\n        var target = this || event.target || _global;\n        var tasks = target[zoneSymbolEventNames$1[event.type][FALSE_STR]];\n        if (tasks) {\n            // invoke all tasks which attached to current target with given event.type and capture = false\n            // for performance concern, if task.length === 1, just invoke\n            if (tasks.length === 1) {\n                invokeTask(tasks[0], target, event);\n            }\n            else {\n                // https://github.com/angular/zone.js/issues/836\n                // copy the tasks array before invoke, to avoid\n                // the callback will remove itself or other listener\n                var copyTasks = tasks.slice();\n                for (var i = 0; i < copyTasks.length; i++) {\n                    if (event && event[IMMEDIATE_PROPAGATION_SYMBOL] === true) {\n                        break;\n                    }\n                    invokeTask(copyTasks[i], target, event);\n                }\n            }\n        }\n    };\n    // global shared zoneAwareCallback to handle all event callback with capture = true\n    var globalZoneAwareCaptureCallback = function (event) {\n        // https://github.com/angular/zone.js/issues/911, in IE, sometimes\n        // event will be undefined, so we need to use window.event\n        event = event || _global.event;\n        if (!event) {\n            return;\n        }\n        // event.target is needed for Samsung TV and SourceBuffer\n        // || global is needed https://github.com/angular/zone.js/issues/190\n        var target = this || event.target || _global;\n        var tasks = target[zoneSymbolEventNames$1[event.type][TRUE_STR]];\n        if (tasks) {\n            // invoke all tasks which attached to current target with given event.type and capture = false\n            // for performance concern, if task.length === 1, just invoke\n            if (tasks.length === 1) {\n                invokeTask(tasks[0], target, event);\n            }\n            else {\n                // https://github.com/angular/zone.js/issues/836\n                // copy the tasks array before invoke, to avoid\n                // the callback will remove itself or other listener\n                var copyTasks = tasks.slice();\n                for (var i = 0; i < copyTasks.length; i++) {\n                    if (event && event[IMMEDIATE_PROPAGATION_SYMBOL] === true) {\n                        break;\n                    }\n                    invokeTask(copyTasks[i], target, event);\n                }\n            }\n        }\n    };\n    function patchEventTargetMethods(obj, patchOptions) {\n        if (!obj) {\n            return false;\n        }\n        var useGlobalCallback = true;\n        if (patchOptions && patchOptions.useG !== undefined) {\n            useGlobalCallback = patchOptions.useG;\n        }\n        var validateHandler = patchOptions && patchOptions.vh;\n        var checkDuplicate = true;\n        if (patchOptions && patchOptions.chkDup !== undefined) {\n            checkDuplicate = patchOptions.chkDup;\n        }\n        var returnTarget = false;\n        if (patchOptions && patchOptions.rt !== undefined) {\n            returnTarget = patchOptions.rt;\n        }\n        var proto = obj;\n        while (proto && !proto.hasOwnProperty(ADD_EVENT_LISTENER)) {\n            proto = ObjectGetPrototypeOf(proto);\n        }\n        if (!proto && obj[ADD_EVENT_LISTENER]) {\n            // somehow we did not find it, but we can see it. This happens on IE for Window properties.\n            proto = obj;\n        }\n        if (!proto) {\n            return false;\n        }\n        if (proto[zoneSymbolAddEventListener]) {\n            return false;\n        }\n        var eventNameToString = patchOptions && patchOptions.eventNameToString;\n        // a shared global taskData to pass data for scheduleEventTask\n        // so we do not need to create a new object just for pass some data\n        var taskData = {};\n        var nativeAddEventListener = proto[zoneSymbolAddEventListener] = proto[ADD_EVENT_LISTENER];\n        var nativeRemoveEventListener = proto[zoneSymbol(REMOVE_EVENT_LISTENER)] =\n            proto[REMOVE_EVENT_LISTENER];\n        var nativeListeners = proto[zoneSymbol(LISTENERS_EVENT_LISTENER)] =\n            proto[LISTENERS_EVENT_LISTENER];\n        var nativeRemoveAllListeners = proto[zoneSymbol(REMOVE_ALL_LISTENERS_EVENT_LISTENER)] =\n            proto[REMOVE_ALL_LISTENERS_EVENT_LISTENER];\n        var nativePrependEventListener;\n        if (patchOptions && patchOptions.prepend) {\n            nativePrependEventListener = proto[zoneSymbol(patchOptions.prepend)] =\n                proto[patchOptions.prepend];\n        }\n        function checkIsPassive(task) {\n            if (!passiveSupported && typeof taskData.options !== 'boolean' &&\n                typeof taskData.options !== 'undefined' && taskData.options !== null) {\n                // options is a non-null non-undefined object\n                // passive is not supported\n                // don't pass options as object\n                // just pass capture as a boolean\n                task.options = !!taskData.options.capture;\n                taskData.options = task.options;\n            }\n        }\n        var customScheduleGlobal = function (task) {\n            // if there is already a task for the eventName + capture,\n            // just return, because we use the shared globalZoneAwareCallback here.\n            if (taskData.isExisting) {\n                return;\n            }\n            checkIsPassive(task);\n            return nativeAddEventListener.call(taskData.target, taskData.eventName, taskData.capture ? globalZoneAwareCaptureCallback : globalZoneAwareCallback, taskData.options);\n        };\n        var customCancelGlobal = function (task) {\n            // if task is not marked as isRemoved, this call is directly\n            // from Zone.prototype.cancelTask, we should remove the task\n            // from tasksList of target first\n            if (!task.isRemoved) {\n                var symbolEventNames = zoneSymbolEventNames$1[task.eventName];\n                var symbolEventName = void 0;\n                if (symbolEventNames) {\n                    symbolEventName = symbolEventNames[task.capture ? TRUE_STR : FALSE_STR];\n                }\n                var existingTasks = symbolEventName && task.target[symbolEventName];\n                if (existingTasks) {\n                    for (var i = 0; i < existingTasks.length; i++) {\n                        var existingTask = existingTasks[i];\n                        if (existingTask === task) {\n                            existingTasks.splice(i, 1);\n                            // set isRemoved to data for faster invokeTask check\n                            task.isRemoved = true;\n                            if (existingTasks.length === 0) {\n                                // all tasks for the eventName + capture have gone,\n                                // remove globalZoneAwareCallback and remove the task cache from target\n                                task.allRemoved = true;\n                                task.target[symbolEventName] = null;\n                            }\n                            break;\n                        }\n                    }\n                }\n            }\n            // if all tasks for the eventName + capture have gone,\n            // we will really remove the global event callback,\n            // if not, return\n            if (!task.allRemoved) {\n                return;\n            }\n            return nativeRemoveEventListener.call(task.target, task.eventName, task.capture ? globalZoneAwareCaptureCallback : globalZoneAwareCallback, task.options);\n        };\n        var customScheduleNonGlobal = function (task) {\n            checkIsPassive(task);\n            return nativeAddEventListener.call(taskData.target, taskData.eventName, task.invoke, taskData.options);\n        };\n        var customSchedulePrepend = function (task) {\n            return nativePrependEventListener.call(taskData.target, taskData.eventName, task.invoke, taskData.options);\n        };\n        var customCancelNonGlobal = function (task) {\n            return nativeRemoveEventListener.call(task.target, task.eventName, task.invoke, task.options);\n        };\n        var customSchedule = useGlobalCallback ? customScheduleGlobal : customScheduleNonGlobal;\n        var customCancel = useGlobalCallback ? customCancelGlobal : customCancelNonGlobal;\n        var compareTaskCallbackVsDelegate = function (task, delegate) {\n            var typeOfDelegate = typeof delegate;\n            return (typeOfDelegate === 'function' && task.callback === delegate) ||\n                (typeOfDelegate === 'object' && task.originalDelegate === delegate);\n        };\n        var compare = (patchOptions && patchOptions.diff) ? patchOptions.diff : compareTaskCallbackVsDelegate;\n        var blackListedEvents = Zone[Zone.__symbol__('BLACK_LISTED_EVENTS')];\n        var makeAddListener = function (nativeListener, addSource, customScheduleFn, customCancelFn, returnTarget, prepend) {\n            if (returnTarget === void 0) { returnTarget = false; }\n            if (prepend === void 0) { prepend = false; }\n            return function () {\n                var target = this || _global;\n                var eventName = arguments[0];\n                var delegate = arguments[1];\n                if (!delegate) {\n                    return nativeListener.apply(this, arguments);\n                }\n                if (isNode && eventName === 'uncaughtException') {\n                    // don't patch uncaughtException of nodejs to prevent endless loop\n                    return nativeListener.apply(this, arguments);\n                }\n                // don't create the bind delegate function for handleEvent\n                // case here to improve addEventListener performance\n                // we will create the bind delegate when invoke\n                var isHandleEvent = false;\n                if (typeof delegate !== 'function') {\n                    if (!delegate.handleEvent) {\n                        return nativeListener.apply(this, arguments);\n                    }\n                    isHandleEvent = true;\n                }\n                if (validateHandler && !validateHandler(nativeListener, delegate, target, arguments)) {\n                    return;\n                }\n                var options = arguments[2];\n                if (blackListedEvents) {\n                    // check black list\n                    for (var i = 0; i < blackListedEvents.length; i++) {\n                        if (eventName === blackListedEvents[i]) {\n                            return nativeListener.apply(this, arguments);\n                        }\n                    }\n                }\n                var capture;\n                var once = false;\n                if (options === undefined) {\n                    capture = false;\n                }\n                else if (options === true) {\n                    capture = true;\n                }\n                else if (options === false) {\n                    capture = false;\n                }\n                else {\n                    capture = options ? !!options.capture : false;\n                    once = options ? !!options.once : false;\n                }\n                var zone = Zone.current;\n                var symbolEventNames = zoneSymbolEventNames$1[eventName];\n                var symbolEventName;\n                if (!symbolEventNames) {\n                    // the code is duplicate, but I just want to get some better performance\n                    var falseEventName = (eventNameToString ? eventNameToString(eventName) : eventName) + FALSE_STR;\n                    var trueEventName = (eventNameToString ? eventNameToString(eventName) : eventName) + TRUE_STR;\n                    var symbol = ZONE_SYMBOL_PREFIX + falseEventName;\n                    var symbolCapture = ZONE_SYMBOL_PREFIX + trueEventName;\n                    zoneSymbolEventNames$1[eventName] = {};\n                    zoneSymbolEventNames$1[eventName][FALSE_STR] = symbol;\n                    zoneSymbolEventNames$1[eventName][TRUE_STR] = symbolCapture;\n                    symbolEventName = capture ? symbolCapture : symbol;\n                }\n                else {\n                    symbolEventName = symbolEventNames[capture ? TRUE_STR : FALSE_STR];\n                }\n                var existingTasks = target[symbolEventName];\n                var isExisting = false;\n                if (existingTasks) {\n                    // already have task registered\n                    isExisting = true;\n                    if (checkDuplicate) {\n                        for (var i = 0; i < existingTasks.length; i++) {\n                            if (compare(existingTasks[i], delegate)) {\n                                // same callback, same capture, same event name, just return\n                                return;\n                            }\n                        }\n                    }\n                }\n                else {\n                    existingTasks = target[symbolEventName] = [];\n                }\n                var source;\n                var constructorName = target.constructor['name'];\n                var targetSource = globalSources[constructorName];\n                if (targetSource) {\n                    source = targetSource[eventName];\n                }\n                if (!source) {\n                    source = constructorName + addSource +\n                        (eventNameToString ? eventNameToString(eventName) : eventName);\n                }\n                // do not create a new object as task.data to pass those things\n                // just use the global shared one\n                taskData.options = options;\n                if (once) {\n                    // if addEventListener with once options, we don't pass it to\n                    // native addEventListener, instead we keep the once setting\n                    // and handle ourselves.\n                    taskData.options.once = false;\n                }\n                taskData.target = target;\n                taskData.capture = capture;\n                taskData.eventName = eventName;\n                taskData.isExisting = isExisting;\n                var data = useGlobalCallback ? OPTIMIZED_ZONE_EVENT_TASK_DATA : undefined;\n                // keep taskData into data to allow onScheduleEventTask to access the task information\n                if (data) {\n                    data.taskData = taskData;\n                }\n                var task = zone.scheduleEventTask(source, delegate, data, customScheduleFn, customCancelFn);\n                // should clear taskData.target to avoid memory leak\n                // issue, https://github.com/angular/angular/issues/20442\n                taskData.target = null;\n                // need to clear up taskData because it is a global object\n                if (data) {\n                    data.taskData = null;\n                }\n                // have to save those information to task in case\n                // application may call task.zone.cancelTask() directly\n                if (once) {\n                    options.once = true;\n                }\n                if (!(!passiveSupported && typeof task.options === 'boolean')) {\n                    // if not support passive, and we pass an option object\n                    // to addEventListener, we should save the options to task\n                    task.options = options;\n                }\n                task.target = target;\n                task.capture = capture;\n                task.eventName = eventName;\n                if (isHandleEvent) {\n                    // save original delegate for compare to check duplicate\n                    task.originalDelegate = delegate;\n                }\n                if (!prepend) {\n                    existingTasks.push(task);\n                }\n                else {\n                    existingTasks.unshift(task);\n                }\n                if (returnTarget) {\n                    return target;\n                }\n            };\n        };\n        proto[ADD_EVENT_LISTENER] = makeAddListener(nativeAddEventListener, ADD_EVENT_LISTENER_SOURCE, customSchedule, customCancel, returnTarget);\n        if (nativePrependEventListener) {\n            proto[PREPEND_EVENT_LISTENER] = makeAddListener(nativePrependEventListener, PREPEND_EVENT_LISTENER_SOURCE, customSchedulePrepend, customCancel, returnTarget, true);\n        }\n        proto[REMOVE_EVENT_LISTENER] = function () {\n            var target = this || _global;\n            var eventName = arguments[0];\n            var options = arguments[2];\n            var capture;\n            if (options === undefined) {\n                capture = false;\n            }\n            else if (options === true) {\n                capture = true;\n            }\n            else if (options === false) {\n                capture = false;\n            }\n            else {\n                capture = options ? !!options.capture : false;\n            }\n            var delegate = arguments[1];\n            if (!delegate) {\n                return nativeRemoveEventListener.apply(this, arguments);\n            }\n            if (validateHandler &&\n                !validateHandler(nativeRemoveEventListener, delegate, target, arguments)) {\n                return;\n            }\n            var symbolEventNames = zoneSymbolEventNames$1[eventName];\n            var symbolEventName;\n            if (symbolEventNames) {\n                symbolEventName = symbolEventNames[capture ? TRUE_STR : FALSE_STR];\n            }\n            var existingTasks = symbolEventName && target[symbolEventName];\n            if (existingTasks) {\n                for (var i = 0; i < existingTasks.length; i++) {\n                    var existingTask = existingTasks[i];\n                    if (compare(existingTask, delegate)) {\n                        existingTasks.splice(i, 1);\n                        // set isRemoved to data for faster invokeTask check\n                        existingTask.isRemoved = true;\n                        if (existingTasks.length === 0) {\n                            // all tasks for the eventName + capture have gone,\n                            // remove globalZoneAwareCallback and remove the task cache from target\n                            existingTask.allRemoved = true;\n                            target[symbolEventName] = null;\n                        }\n                        existingTask.zone.cancelTask(existingTask);\n                        if (returnTarget) {\n                            return target;\n                        }\n                        return;\n                    }\n                }\n            }\n            // issue 930, didn't find the event name or callback\n            // from zone kept existingTasks, the callback maybe\n            // added outside of zone, we need to call native removeEventListener\n            // to try to remove it.\n            return nativeRemoveEventListener.apply(this, arguments);\n        };\n        proto[LISTENERS_EVENT_LISTENER] = function () {\n            var target = this || _global;\n            var eventName = arguments[0];\n            var listeners = [];\n            var tasks = findEventTasks(target, eventNameToString ? eventNameToString(eventName) : eventName);\n            for (var i = 0; i < tasks.length; i++) {\n                var task = tasks[i];\n                var delegate = task.originalDelegate ? task.originalDelegate : task.callback;\n                listeners.push(delegate);\n            }\n            return listeners;\n        };\n        proto[REMOVE_ALL_LISTENERS_EVENT_LISTENER] = function () {\n            var target = this || _global;\n            var eventName = arguments[0];\n            if (!eventName) {\n                var keys = Object.keys(target);\n                for (var i = 0; i < keys.length; i++) {\n                    var prop = keys[i];\n                    var match = EVENT_NAME_SYMBOL_REGX.exec(prop);\n                    var evtName = match && match[1];\n                    // in nodejs EventEmitter, removeListener event is\n                    // used for monitoring the removeListener call,\n                    // so just keep removeListener eventListener until\n                    // all other eventListeners are removed\n                    if (evtName && evtName !== 'removeListener') {\n                        this[REMOVE_ALL_LISTENERS_EVENT_LISTENER].call(this, evtName);\n                    }\n                }\n                // remove removeListener listener finally\n                this[REMOVE_ALL_LISTENERS_EVENT_LISTENER].call(this, 'removeListener');\n            }\n            else {\n                var symbolEventNames = zoneSymbolEventNames$1[eventName];\n                if (symbolEventNames) {\n                    var symbolEventName = symbolEventNames[FALSE_STR];\n                    var symbolCaptureEventName = symbolEventNames[TRUE_STR];\n                    var tasks = target[symbolEventName];\n                    var captureTasks = target[symbolCaptureEventName];\n                    if (tasks) {\n                        var removeTasks = tasks.slice();\n                        for (var i = 0; i < removeTasks.length; i++) {\n                            var task = removeTasks[i];\n                            var delegate = task.originalDelegate ? task.originalDelegate : task.callback;\n                            this[REMOVE_EVENT_LISTENER].call(this, eventName, delegate, task.options);\n                        }\n                    }\n                    if (captureTasks) {\n                        var removeTasks = captureTasks.slice();\n                        for (var i = 0; i < removeTasks.length; i++) {\n                            var task = removeTasks[i];\n                            var delegate = task.originalDelegate ? task.originalDelegate : task.callback;\n                            this[REMOVE_EVENT_LISTENER].call(this, eventName, delegate, task.options);\n                        }\n                    }\n                }\n            }\n            if (returnTarget) {\n                return this;\n            }\n        };\n        // for native toString patch\n        attachOriginToPatched(proto[ADD_EVENT_LISTENER], nativeAddEventListener);\n        attachOriginToPatched(proto[REMOVE_EVENT_LISTENER], nativeRemoveEventListener);\n        if (nativeRemoveAllListeners) {\n            attachOriginToPatched(proto[REMOVE_ALL_LISTENERS_EVENT_LISTENER], nativeRemoveAllListeners);\n        }\n        if (nativeListeners) {\n            attachOriginToPatched(proto[LISTENERS_EVENT_LISTENER], nativeListeners);\n        }\n        return true;\n    }\n    var results = [];\n    for (var i = 0; i < apis.length; i++) {\n        results[i] = patchEventTargetMethods(apis[i], patchOptions);\n    }\n    return results;\n}\nfunction findEventTasks(target, eventName) {\n    var foundTasks = [];\n    for (var prop in target) {\n        var match = EVENT_NAME_SYMBOL_REGX.exec(prop);\n        var evtName = match && match[1];\n        if (evtName && (!eventName || evtName === eventName)) {\n            var tasks = target[prop];\n            if (tasks) {\n                for (var i = 0; i < tasks.length; i++) {\n                    foundTasks.push(tasks[i]);\n                }\n            }\n        }\n    }\n    return foundTasks;\n}\nfunction patchEventPrototype(global, api) {\n    var Event = global['Event'];\n    if (Event && Event.prototype) {\n        api.patchMethod(Event.prototype, 'stopImmediatePropagation', function (delegate) { return function (self, args) {\n            self[IMMEDIATE_PROPAGATION_SYMBOL] = true;\n            // we need to call the native stopImmediatePropagation\n            // in case in some hybrid application, some part of\n            // application will be controlled by zone, some are not\n            delegate && delegate.apply(self, args);\n        }; });\n    }\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @fileoverview\n * @suppress {missingRequire}\n */\nvar taskSymbol = zoneSymbol('zoneTask');\nfunction patchTimer(window, setName, cancelName, nameSuffix) {\n    var setNative = null;\n    var clearNative = null;\n    setName += nameSuffix;\n    cancelName += nameSuffix;\n    var tasksByHandleId = {};\n    function scheduleTask(task) {\n        var data = task.data;\n        function timer() {\n            try {\n                task.invoke.apply(this, arguments);\n            }\n            finally {\n                // issue-934, task will be cancelled\n                // even it is a periodic task such as\n                // setInterval\n                if (!(task.data && task.data.isPeriodic)) {\n                    if (typeof data.handleId === 'number') {\n                        // in non-nodejs env, we remove timerId\n                        // from local cache\n                        delete tasksByHandleId[data.handleId];\n                    }\n                    else if (data.handleId) {\n                        // Node returns complex objects as handleIds\n                        // we remove task reference from timer object\n                        data.handleId[taskSymbol] = null;\n                    }\n                }\n            }\n        }\n        data.args[0] = timer;\n        data.handleId = setNative.apply(window, data.args);\n        return task;\n    }\n    function clearTask(task) {\n        return clearNative(task.data.handleId);\n    }\n    setNative =\n        patchMethod(window, setName, function (delegate) { return function (self, args) {\n            if (typeof args[0] === 'function') {\n                var options = {\n                    isPeriodic: nameSuffix === 'Interval',\n                    delay: (nameSuffix === 'Timeout' || nameSuffix === 'Interval') ? args[1] || 0 :\n                        undefined,\n                    args: args\n                };\n                var task = scheduleMacroTaskWithCurrentZone(setName, args[0], options, scheduleTask, clearTask);\n                if (!task) {\n                    return task;\n                }\n                // Node.js must additionally support the ref and unref functions.\n                var handle = task.data.handleId;\n                if (typeof handle === 'number') {\n                    // for non nodejs env, we save handleId: task\n                    // mapping in local cache for clearTimeout\n                    tasksByHandleId[handle] = task;\n                }\n                else if (handle) {\n                    // for nodejs env, we save task\n                    // reference in timerId Object for clearTimeout\n                    handle[taskSymbol] = task;\n                }\n                // check whether handle is null, because some polyfill or browser\n                // may return undefined from setTimeout/setInterval/setImmediate/requestAnimationFrame\n                if (handle && handle.ref && handle.unref && typeof handle.ref === 'function' &&\n                    typeof handle.unref === 'function') {\n                    task.ref = handle.ref.bind(handle);\n                    task.unref = handle.unref.bind(handle);\n                }\n                if (typeof handle === 'number' || handle) {\n                    return handle;\n                }\n                return task;\n            }\n            else {\n                // cause an error by calling it directly.\n                return delegate.apply(window, args);\n            }\n        }; });\n    clearNative =\n        patchMethod(window, cancelName, function (delegate) { return function (self, args) {\n            var id = args[0];\n            var task;\n            if (typeof id === 'number') {\n                // non nodejs env.\n                task = tasksByHandleId[id];\n            }\n            else {\n                // nodejs env.\n                task = id && id[taskSymbol];\n                // other environments.\n                if (!task) {\n                    task = id;\n                }\n            }\n            if (task && typeof task.type === 'string') {\n                if (task.state !== 'notScheduled' &&\n                    (task.cancelFn && task.data.isPeriodic || task.runCount === 0)) {\n                    if (typeof id === 'number') {\n                        delete tasksByHandleId[id];\n                    }\n                    else if (id) {\n                        id[taskSymbol] = null;\n                    }\n                    // Do not cancel already canceled functions\n                    task.zone.cancelTask(task);\n                }\n            }\n            else {\n                // cause an error by calling it directly.\n                delegate.apply(window, args);\n            }\n        }; });\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/*\n * This is necessary for Chrome and Chrome mobile, to enable\n * things like redefining `createdCallback` on an element.\n */\nvar _defineProperty = Object[zoneSymbol('defineProperty')] = Object.defineProperty;\nvar _getOwnPropertyDescriptor = Object[zoneSymbol('getOwnPropertyDescriptor')] =\n    Object.getOwnPropertyDescriptor;\nvar _create = Object.create;\nvar unconfigurablesKey = zoneSymbol('unconfigurables');\nfunction propertyPatch() {\n    Object.defineProperty = function (obj, prop, desc) {\n        if (isUnconfigurable(obj, prop)) {\n            throw new TypeError('Cannot assign to read only property \\'' + prop + '\\' of ' + obj);\n        }\n        var originalConfigurableFlag = desc.configurable;\n        if (prop !== 'prototype') {\n            desc = rewriteDescriptor(obj, prop, desc);\n        }\n        return _tryDefineProperty(obj, prop, desc, originalConfigurableFlag);\n    };\n    Object.defineProperties = function (obj, props) {\n        Object.keys(props).forEach(function (prop) {\n            Object.defineProperty(obj, prop, props[prop]);\n        });\n        return obj;\n    };\n    Object.create = function (obj, proto) {\n        if (typeof proto === 'object' && !Object.isFrozen(proto)) {\n            Object.keys(proto).forEach(function (prop) {\n                proto[prop] = rewriteDescriptor(obj, prop, proto[prop]);\n            });\n        }\n        return _create(obj, proto);\n    };\n    Object.getOwnPropertyDescriptor = function (obj, prop) {\n        var desc = _getOwnPropertyDescriptor(obj, prop);\n        if (desc && isUnconfigurable(obj, prop)) {\n            desc.configurable = false;\n        }\n        return desc;\n    };\n}\nfunction _redefineProperty(obj, prop, desc) {\n    var originalConfigurableFlag = desc.configurable;\n    desc = rewriteDescriptor(obj, prop, desc);\n    return _tryDefineProperty(obj, prop, desc, originalConfigurableFlag);\n}\nfunction isUnconfigurable(obj, prop) {\n    return obj && obj[unconfigurablesKey] && obj[unconfigurablesKey][prop];\n}\nfunction rewriteDescriptor(obj, prop, desc) {\n    // issue-927, if the desc is frozen, don't try to change the desc\n    if (!Object.isFrozen(desc)) {\n        desc.configurable = true;\n    }\n    if (!desc.configurable) {\n        // issue-927, if the obj is frozen, don't try to set the desc to obj\n        if (!obj[unconfigurablesKey] && !Object.isFrozen(obj)) {\n            _defineProperty(obj, unconfigurablesKey, { writable: true, value: {} });\n        }\n        if (obj[unconfigurablesKey]) {\n            obj[unconfigurablesKey][prop] = true;\n        }\n    }\n    return desc;\n}\nfunction _tryDefineProperty(obj, prop, desc, originalConfigurableFlag) {\n    try {\n        return _defineProperty(obj, prop, desc);\n    }\n    catch (error) {\n        if (desc.configurable) {\n            // In case of errors, when the configurable flag was likely set by rewriteDescriptor(), let's\n            // retry with the original flag value\n            if (typeof originalConfigurableFlag == 'undefined') {\n                delete desc.configurable;\n            }\n            else {\n                desc.configurable = originalConfigurableFlag;\n            }\n            try {\n                return _defineProperty(obj, prop, desc);\n            }\n            catch (error) {\n                var descJson = null;\n                try {\n                    descJson = JSON.stringify(desc);\n                }\n                catch (error) {\n                    descJson = desc.toString();\n                }\n                console.log(\"Attempting to configure '\" + prop + \"' with descriptor '\" + descJson + \"' on object '\" + obj + \"' and got error, giving up: \" + error);\n            }\n        }\n        else {\n            throw error;\n        }\n    }\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n// we have to patch the instance since the proto is non-configurable\nfunction apply(api, _global) {\n    var WS = _global.WebSocket;\n    // On Safari window.EventTarget doesn't exist so need to patch WS add/removeEventListener\n    // On older Chrome, no need since EventTarget was already patched\n    if (!_global.EventTarget) {\n        patchEventTarget(_global, [WS.prototype]);\n    }\n    _global.WebSocket = function (x, y) {\n        var socket = arguments.length > 1 ? new WS(x, y) : new WS(x);\n        var proxySocket;\n        var proxySocketProto;\n        // Safari 7.0 has non-configurable own 'onmessage' and friends properties on the socket instance\n        var onmessageDesc = ObjectGetOwnPropertyDescriptor(socket, 'onmessage');\n        if (onmessageDesc && onmessageDesc.configurable === false) {\n            proxySocket = ObjectCreate(socket);\n            // socket have own property descriptor 'onopen', 'onmessage', 'onclose', 'onerror'\n            // but proxySocket not, so we will keep socket as prototype and pass it to\n            // patchOnProperties method\n            proxySocketProto = socket;\n            [ADD_EVENT_LISTENER_STR, REMOVE_EVENT_LISTENER_STR, 'send', 'close'].forEach(function (propName) {\n                proxySocket[propName] = function () {\n                    var args = ArraySlice.call(arguments);\n                    if (propName === ADD_EVENT_LISTENER_STR || propName === REMOVE_EVENT_LISTENER_STR) {\n                        var eventName = args.length > 0 ? args[0] : undefined;\n                        if (eventName) {\n                            var propertySymbol = Zone.__symbol__('ON_PROPERTY' + eventName);\n                            socket[propertySymbol] = proxySocket[propertySymbol];\n                        }\n                    }\n                    return socket[propName].apply(socket, args);\n                };\n            });\n        }\n        else {\n            // we can patch the real socket\n            proxySocket = socket;\n        }\n        patchOnProperties(proxySocket, ['close', 'error', 'message', 'open'], proxySocketProto);\n        return proxySocket;\n    };\n    var globalWebSocket = _global['WebSocket'];\n    for (var prop in WS) {\n        globalWebSocket[prop] = WS[prop];\n    }\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @fileoverview\n * @suppress {globalThis}\n */\nvar globalEventHandlersEventNames = [\n    'abort',\n    'animationcancel',\n    'animationend',\n    'animationiteration',\n    'auxclick',\n    'beforeinput',\n    'blur',\n    'cancel',\n    'canplay',\n    'canplaythrough',\n    'change',\n    'compositionstart',\n    'compositionupdate',\n    'compositionend',\n    'cuechange',\n    'click',\n    'close',\n    'contextmenu',\n    'curechange',\n    'dblclick',\n    'drag',\n    'dragend',\n    'dragenter',\n    'dragexit',\n    'dragleave',\n    'dragover',\n    'drop',\n    'durationchange',\n    'emptied',\n    'ended',\n    'error',\n    'focus',\n    'focusin',\n    'focusout',\n    'gotpointercapture',\n    'input',\n    'invalid',\n    'keydown',\n    'keypress',\n    'keyup',\n    'load',\n    'loadstart',\n    'loadeddata',\n    'loadedmetadata',\n    'lostpointercapture',\n    'mousedown',\n    'mouseenter',\n    'mouseleave',\n    'mousemove',\n    'mouseout',\n    'mouseover',\n    'mouseup',\n    'mousewheel',\n    'orientationchange',\n    'pause',\n    'play',\n    'playing',\n    'pointercancel',\n    'pointerdown',\n    'pointerenter',\n    'pointerleave',\n    'pointerlockchange',\n    'mozpointerlockchange',\n    'webkitpointerlockerchange',\n    'pointerlockerror',\n    'mozpointerlockerror',\n    'webkitpointerlockerror',\n    'pointermove',\n    'pointout',\n    'pointerover',\n    'pointerup',\n    'progress',\n    'ratechange',\n    'reset',\n    'resize',\n    'scroll',\n    'seeked',\n    'seeking',\n    'select',\n    'selectionchange',\n    'selectstart',\n    'show',\n    'sort',\n    'stalled',\n    'submit',\n    'suspend',\n    'timeupdate',\n    'volumechange',\n    'touchcancel',\n    'touchmove',\n    'touchstart',\n    'touchend',\n    'transitioncancel',\n    'transitionend',\n    'waiting',\n    'wheel'\n];\nvar documentEventNames = [\n    'afterscriptexecute', 'beforescriptexecute', 'DOMContentLoaded', 'freeze', 'fullscreenchange',\n    'mozfullscreenchange', 'webkitfullscreenchange', 'msfullscreenchange', 'fullscreenerror',\n    'mozfullscreenerror', 'webkitfullscreenerror', 'msfullscreenerror', 'readystatechange',\n    'visibilitychange', 'resume'\n];\nvar windowEventNames = [\n    'absolutedeviceorientation',\n    'afterinput',\n    'afterprint',\n    'appinstalled',\n    'beforeinstallprompt',\n    'beforeprint',\n    'beforeunload',\n    'devicelight',\n    'devicemotion',\n    'deviceorientation',\n    'deviceorientationabsolute',\n    'deviceproximity',\n    'hashchange',\n    'languagechange',\n    'message',\n    'mozbeforepaint',\n    'offline',\n    'online',\n    'paint',\n    'pageshow',\n    'pagehide',\n    'popstate',\n    'rejectionhandled',\n    'storage',\n    'unhandledrejection',\n    'unload',\n    'userproximity',\n    'vrdisplyconnected',\n    'vrdisplaydisconnected',\n    'vrdisplaypresentchange'\n];\nvar htmlElementEventNames = [\n    'beforecopy', 'beforecut', 'beforepaste', 'copy', 'cut', 'paste', 'dragstart', 'loadend',\n    'animationstart', 'search', 'transitionrun', 'transitionstart', 'webkitanimationend',\n    'webkitanimationiteration', 'webkitanimationstart', 'webkittransitionend'\n];\nvar mediaElementEventNames = ['encrypted', 'waitingforkey', 'msneedkey', 'mozinterruptbegin', 'mozinterruptend'];\nvar ieElementEventNames = [\n    'activate',\n    'afterupdate',\n    'ariarequest',\n    'beforeactivate',\n    'beforedeactivate',\n    'beforeeditfocus',\n    'beforeupdate',\n    'cellchange',\n    'controlselect',\n    'dataavailable',\n    'datasetchanged',\n    'datasetcomplete',\n    'errorupdate',\n    'filterchange',\n    'layoutcomplete',\n    'losecapture',\n    'move',\n    'moveend',\n    'movestart',\n    'propertychange',\n    'resizeend',\n    'resizestart',\n    'rowenter',\n    'rowexit',\n    'rowsdelete',\n    'rowsinserted',\n    'command',\n    'compassneedscalibration',\n    'deactivate',\n    'help',\n    'mscontentzoom',\n    'msmanipulationstatechanged',\n    'msgesturechange',\n    'msgesturedoubletap',\n    'msgestureend',\n    'msgesturehold',\n    'msgesturestart',\n    'msgesturetap',\n    'msgotpointercapture',\n    'msinertiastart',\n    'mslostpointercapture',\n    'mspointercancel',\n    'mspointerdown',\n    'mspointerenter',\n    'mspointerhover',\n    'mspointerleave',\n    'mspointermove',\n    'mspointerout',\n    'mspointerover',\n    'mspointerup',\n    'pointerout',\n    'mssitemodejumplistitemremoved',\n    'msthumbnailclick',\n    'stop',\n    'storagecommit'\n];\nvar webglEventNames = ['webglcontextrestored', 'webglcontextlost', 'webglcontextcreationerror'];\nvar formEventNames = ['autocomplete', 'autocompleteerror'];\nvar detailEventNames = ['toggle'];\nvar frameEventNames = ['load'];\nvar frameSetEventNames = ['blur', 'error', 'focus', 'load', 'resize', 'scroll', 'messageerror'];\nvar marqueeEventNames = ['bounce', 'finish', 'start'];\nvar XMLHttpRequestEventNames = [\n    'loadstart', 'progress', 'abort', 'error', 'load', 'progress', 'timeout', 'loadend',\n    'readystatechange'\n];\nvar IDBIndexEventNames = ['upgradeneeded', 'complete', 'abort', 'success', 'error', 'blocked', 'versionchange', 'close'];\nvar websocketEventNames = ['close', 'error', 'open', 'message'];\nvar workerEventNames = ['error', 'message'];\nvar eventNames = globalEventHandlersEventNames.concat(webglEventNames, formEventNames, detailEventNames, documentEventNames, windowEventNames, htmlElementEventNames, ieElementEventNames);\nfunction filterProperties(target, onProperties, ignoreProperties) {\n    if (!ignoreProperties || ignoreProperties.length === 0) {\n        return onProperties;\n    }\n    var tip = ignoreProperties.filter(function (ip) { return ip.target === target; });\n    if (!tip || tip.length === 0) {\n        return onProperties;\n    }\n    var targetIgnoreProperties = tip[0].ignoreProperties;\n    return onProperties.filter(function (op) { return targetIgnoreProperties.indexOf(op) === -1; });\n}\nfunction patchFilteredProperties(target, onProperties, ignoreProperties, prototype) {\n    // check whether target is available, sometimes target will be undefined\n    // because different browser or some 3rd party plugin.\n    if (!target) {\n        return;\n    }\n    var filteredProperties = filterProperties(target, onProperties, ignoreProperties);\n    patchOnProperties(target, filteredProperties, prototype);\n}\nfunction propertyDescriptorPatch(api, _global) {\n    if (isNode && !isMix) {\n        return;\n    }\n    var supportsWebSocket = typeof WebSocket !== 'undefined';\n    if (canPatchViaPropertyDescriptor()) {\n        var ignoreProperties = _global['__Zone_ignore_on_properties'];\n        // for browsers that we can patch the descriptor:  Chrome & Firefox\n        if (isBrowser) {\n            var internalWindow = window;\n            var ignoreErrorProperties = isIE ? [{ target: internalWindow, ignoreProperties: ['error'] }] : [];\n            // in IE/Edge, onProp not exist in window object, but in WindowPrototype\n            // so we need to pass WindowPrototype to check onProp exist or not\n            patchFilteredProperties(internalWindow, eventNames.concat(['messageerror']), ignoreProperties ? ignoreProperties.concat(ignoreErrorProperties) : ignoreProperties, ObjectGetPrototypeOf(internalWindow));\n            patchFilteredProperties(Document.prototype, eventNames, ignoreProperties);\n            if (typeof internalWindow['SVGElement'] !== 'undefined') {\n                patchFilteredProperties(internalWindow['SVGElement'].prototype, eventNames, ignoreProperties);\n            }\n            patchFilteredProperties(Element.prototype, eventNames, ignoreProperties);\n            patchFilteredProperties(HTMLElement.prototype, eventNames, ignoreProperties);\n            patchFilteredProperties(HTMLMediaElement.prototype, mediaElementEventNames, ignoreProperties);\n            patchFilteredProperties(HTMLFrameSetElement.prototype, windowEventNames.concat(frameSetEventNames), ignoreProperties);\n            patchFilteredProperties(HTMLBodyElement.prototype, windowEventNames.concat(frameSetEventNames), ignoreProperties);\n            patchFilteredProperties(HTMLFrameElement.prototype, frameEventNames, ignoreProperties);\n            patchFilteredProperties(HTMLIFrameElement.prototype, frameEventNames, ignoreProperties);\n            var HTMLMarqueeElement_1 = internalWindow['HTMLMarqueeElement'];\n            if (HTMLMarqueeElement_1) {\n                patchFilteredProperties(HTMLMarqueeElement_1.prototype, marqueeEventNames, ignoreProperties);\n            }\n            var Worker_1 = internalWindow['Worker'];\n            if (Worker_1) {\n                patchFilteredProperties(Worker_1.prototype, workerEventNames, ignoreProperties);\n            }\n        }\n        patchFilteredProperties(XMLHttpRequest.prototype, XMLHttpRequestEventNames, ignoreProperties);\n        var XMLHttpRequestEventTarget_1 = _global['XMLHttpRequestEventTarget'];\n        if (XMLHttpRequestEventTarget_1) {\n            patchFilteredProperties(XMLHttpRequestEventTarget_1 && XMLHttpRequestEventTarget_1.prototype, XMLHttpRequestEventNames, ignoreProperties);\n        }\n        if (typeof IDBIndex !== 'undefined') {\n            patchFilteredProperties(IDBIndex.prototype, IDBIndexEventNames, ignoreProperties);\n            patchFilteredProperties(IDBRequest.prototype, IDBIndexEventNames, ignoreProperties);\n            patchFilteredProperties(IDBOpenDBRequest.prototype, IDBIndexEventNames, ignoreProperties);\n            patchFilteredProperties(IDBDatabase.prototype, IDBIndexEventNames, ignoreProperties);\n            patchFilteredProperties(IDBTransaction.prototype, IDBIndexEventNames, ignoreProperties);\n            patchFilteredProperties(IDBCursor.prototype, IDBIndexEventNames, ignoreProperties);\n        }\n        if (supportsWebSocket) {\n            patchFilteredProperties(WebSocket.prototype, websocketEventNames, ignoreProperties);\n        }\n    }\n    else {\n        // Safari, Android browsers (Jelly Bean)\n        patchViaCapturingAllTheEvents();\n        patchClass('XMLHttpRequest');\n        if (supportsWebSocket) {\n            apply(api, _global);\n        }\n    }\n}\nfunction canPatchViaPropertyDescriptor() {\n    if ((isBrowser || isMix) && !ObjectGetOwnPropertyDescriptor(HTMLElement.prototype, 'onclick') &&\n        typeof Element !== 'undefined') {\n        // WebKit https://bugs.webkit.org/show_bug.cgi?id=134364\n        // IDL interface attributes are not configurable\n        var desc = ObjectGetOwnPropertyDescriptor(Element.prototype, 'onclick');\n        if (desc && !desc.configurable)\n            return false;\n    }\n    var ON_READY_STATE_CHANGE = 'onreadystatechange';\n    var XMLHttpRequestPrototype = XMLHttpRequest.prototype;\n    var xhrDesc = ObjectGetOwnPropertyDescriptor(XMLHttpRequestPrototype, ON_READY_STATE_CHANGE);\n    // add enumerable and configurable here because in opera\n    // by default XMLHttpRequest.prototype.onreadystatechange is undefined\n    // without adding enumerable and configurable will cause onreadystatechange\n    // non-configurable\n    // and if XMLHttpRequest.prototype.onreadystatechange is undefined,\n    // we should set a real desc instead a fake one\n    if (xhrDesc) {\n        ObjectDefineProperty(XMLHttpRequestPrototype, ON_READY_STATE_CHANGE, {\n            enumerable: true,\n            configurable: true,\n            get: function () {\n                return true;\n            }\n        });\n        var req = new XMLHttpRequest();\n        var result = !!req.onreadystatechange;\n        // restore original desc\n        ObjectDefineProperty(XMLHttpRequestPrototype, ON_READY_STATE_CHANGE, xhrDesc || {});\n        return result;\n    }\n    else {\n        var SYMBOL_FAKE_ONREADYSTATECHANGE_1 = zoneSymbol('fake');\n        ObjectDefineProperty(XMLHttpRequestPrototype, ON_READY_STATE_CHANGE, {\n            enumerable: true,\n            configurable: true,\n            get: function () {\n                return this[SYMBOL_FAKE_ONREADYSTATECHANGE_1];\n            },\n            set: function (value) {\n                this[SYMBOL_FAKE_ONREADYSTATECHANGE_1] = value;\n            }\n        });\n        var req = new XMLHttpRequest();\n        var detectFunc = function () { };\n        req.onreadystatechange = detectFunc;\n        var result = req[SYMBOL_FAKE_ONREADYSTATECHANGE_1] === detectFunc;\n        req.onreadystatechange = null;\n        return result;\n    }\n}\nvar unboundKey = zoneSymbol('unbound');\n// Whenever any eventListener fires, we check the eventListener target and all parents\n// for `onwhatever` properties and replace them with zone-bound functions\n// - Chrome (for now)\nfunction patchViaCapturingAllTheEvents() {\n    var _loop_1 = function (i) {\n        var property = eventNames[i];\n        var onproperty = 'on' + property;\n        self.addEventListener(property, function (event) {\n            var elt = event.target, bound, source;\n            if (elt) {\n                source = elt.constructor['name'] + '.' + onproperty;\n            }\n            else {\n                source = 'unknown.' + onproperty;\n            }\n            while (elt) {\n                if (elt[onproperty] && !elt[onproperty][unboundKey]) {\n                    bound = wrapWithCurrentZone(elt[onproperty], source);\n                    bound[unboundKey] = elt[onproperty];\n                    elt[onproperty] = bound;\n                }\n                elt = elt.parentElement;\n            }\n        }, true);\n    };\n    for (var i = 0; i < eventNames.length; i++) {\n        _loop_1(i);\n    }\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nfunction eventTargetPatch(_global, api) {\n    var WTF_ISSUE_555 = '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';\n    var NO_EVENT_TARGET = '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'\n        .split(',');\n    var EVENT_TARGET = 'EventTarget';\n    var apis = [];\n    var isWtf = _global['wtf'];\n    var WTF_ISSUE_555_ARRAY = WTF_ISSUE_555.split(',');\n    if (isWtf) {\n        // Workaround for: https://github.com/google/tracing-framework/issues/555\n        apis = WTF_ISSUE_555_ARRAY.map(function (v) { return 'HTML' + v + 'Element'; }).concat(NO_EVENT_TARGET);\n    }\n    else if (_global[EVENT_TARGET]) {\n        apis.push(EVENT_TARGET);\n    }\n    else {\n        // Note: EventTarget is not available in all browsers,\n        // if it's not available, we instead patch the APIs in the IDL that inherit from EventTarget\n        apis = NO_EVENT_TARGET;\n    }\n    var isDisableIECheck = _global['__Zone_disable_IE_check'] || false;\n    var isEnableCrossContextCheck = _global['__Zone_enable_cross_context_check'] || false;\n    var ieOrEdge = isIEOrEdge();\n    var ADD_EVENT_LISTENER_SOURCE = '.addEventListener:';\n    var FUNCTION_WRAPPER = '[object FunctionWrapper]';\n    var BROWSER_TOOLS = 'function __BROWSERTOOLS_CONSOLE_SAFEFUNC() { [native code] }';\n    //  predefine all __zone_symbol__ + eventName + true/false string\n    for (var i = 0; i < eventNames.length; i++) {\n        var eventName = eventNames[i];\n        var falseEventName = eventName + FALSE_STR;\n        var trueEventName = eventName + TRUE_STR;\n        var symbol = ZONE_SYMBOL_PREFIX + falseEventName;\n        var symbolCapture = ZONE_SYMBOL_PREFIX + trueEventName;\n        zoneSymbolEventNames$1[eventName] = {};\n        zoneSymbolEventNames$1[eventName][FALSE_STR] = symbol;\n        zoneSymbolEventNames$1[eventName][TRUE_STR] = symbolCapture;\n    }\n    //  predefine all task.source string\n    for (var i = 0; i < WTF_ISSUE_555.length; i++) {\n        var target = WTF_ISSUE_555_ARRAY[i];\n        var targets = globalSources[target] = {};\n        for (var j = 0; j < eventNames.length; j++) {\n            var eventName = eventNames[j];\n            targets[eventName] = target + ADD_EVENT_LISTENER_SOURCE + eventName;\n        }\n    }\n    var checkIEAndCrossContext = function (nativeDelegate, delegate, target, args) {\n        if (!isDisableIECheck && ieOrEdge) {\n            if (isEnableCrossContextCheck) {\n                try {\n                    var testString = delegate.toString();\n                    if ((testString === FUNCTION_WRAPPER || testString == BROWSER_TOOLS)) {\n                        nativeDelegate.apply(target, args);\n                        return false;\n                    }\n                }\n                catch (error) {\n                    nativeDelegate.apply(target, args);\n                    return false;\n                }\n            }\n            else {\n                var testString = delegate.toString();\n                if ((testString === FUNCTION_WRAPPER || testString == BROWSER_TOOLS)) {\n                    nativeDelegate.apply(target, args);\n                    return false;\n                }\n            }\n        }\n        else if (isEnableCrossContextCheck) {\n            try {\n                delegate.toString();\n            }\n            catch (error) {\n                nativeDelegate.apply(target, args);\n                return false;\n            }\n        }\n        return true;\n    };\n    var apiTypes = [];\n    for (var i = 0; i < apis.length; i++) {\n        var type = _global[apis[i]];\n        apiTypes.push(type && type.prototype);\n    }\n    // vh is validateHandler to check event handler\n    // is valid or not(for security check)\n    patchEventTarget(_global, apiTypes, { vh: checkIEAndCrossContext });\n    api.patchEventTarget = patchEventTarget;\n    return true;\n}\nfunction patchEvent(global, api) {\n    patchEventPrototype(global, api);\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nfunction patchCallbacks(target, targetName, method, callbacks) {\n    var symbol = Zone.__symbol__(method);\n    if (target[symbol]) {\n        return;\n    }\n    var nativeDelegate = target[symbol] = target[method];\n    target[method] = function (name, opts, options) {\n        if (opts && opts.prototype) {\n            callbacks.forEach(function (callback) {\n                var source = targetName + \".\" + method + \"::\" + callback;\n                var prototype = opts.prototype;\n                if (prototype.hasOwnProperty(callback)) {\n                    var descriptor = ObjectGetOwnPropertyDescriptor(prototype, callback);\n                    if (descriptor && descriptor.value) {\n                        descriptor.value = wrapWithCurrentZone(descriptor.value, source);\n                        _redefineProperty(opts.prototype, callback, descriptor);\n                    }\n                    else if (prototype[callback]) {\n                        prototype[callback] = wrapWithCurrentZone(prototype[callback], source);\n                    }\n                }\n                else if (prototype[callback]) {\n                    prototype[callback] = wrapWithCurrentZone(prototype[callback], source);\n                }\n            });\n        }\n        return nativeDelegate.call(target, name, opts, options);\n    };\n    attachOriginToPatched(target[method], nativeDelegate);\n}\nfunction registerElementPatch(_global) {\n    if ((!isBrowser && !isMix) || !('registerElement' in _global.document)) {\n        return;\n    }\n    var callbacks = ['createdCallback', 'attachedCallback', 'detachedCallback', 'attributeChangedCallback'];\n    patchCallbacks(document, 'Document', 'registerElement', callbacks);\n}\nfunction patchCustomElements(_global) {\n    if ((!isBrowser && !isMix) || !('customElements' in _global)) {\n        return;\n    }\n    var callbacks = ['connectedCallback', 'disconnectedCallback', 'adoptedCallback', 'attributeChangedCallback'];\n    patchCallbacks(_global.customElements, 'customElements', 'define', callbacks);\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @fileoverview\n * @suppress {missingRequire}\n */\nZone.__load_patch('util', function (global, Zone, api) {\n    api.patchOnProperties = patchOnProperties;\n    api.patchMethod = patchMethod;\n    api.bindArguments = bindArguments;\n});\nZone.__load_patch('timers', function (global) {\n    var set = 'set';\n    var clear = 'clear';\n    patchTimer(global, set, clear, 'Timeout');\n    patchTimer(global, set, clear, 'Interval');\n    patchTimer(global, set, clear, 'Immediate');\n});\nZone.__load_patch('requestAnimationFrame', function (global) {\n    patchTimer(global, 'request', 'cancel', 'AnimationFrame');\n    patchTimer(global, 'mozRequest', 'mozCancel', 'AnimationFrame');\n    patchTimer(global, 'webkitRequest', 'webkitCancel', 'AnimationFrame');\n});\nZone.__load_patch('blocking', function (global, Zone) {\n    var blockingMethods = ['alert', 'prompt', 'confirm'];\n    for (var i = 0; i < blockingMethods.length; i++) {\n        var name_1 = blockingMethods[i];\n        patchMethod(global, name_1, function (delegate, symbol, name) {\n            return function (s, args) {\n                return Zone.current.run(delegate, global, args, name);\n            };\n        });\n    }\n});\nZone.__load_patch('EventTarget', function (global, Zone, api) {\n    // load blackListEvents from global\n    var SYMBOL_BLACK_LISTED_EVENTS = Zone.__symbol__('BLACK_LISTED_EVENTS');\n    if (global[SYMBOL_BLACK_LISTED_EVENTS]) {\n        Zone[SYMBOL_BLACK_LISTED_EVENTS] = global[SYMBOL_BLACK_LISTED_EVENTS];\n    }\n    patchEvent(global, api);\n    eventTargetPatch(global, api);\n    // patch XMLHttpRequestEventTarget's addEventListener/removeEventListener\n    var XMLHttpRequestEventTarget = global['XMLHttpRequestEventTarget'];\n    if (XMLHttpRequestEventTarget && XMLHttpRequestEventTarget.prototype) {\n        api.patchEventTarget(global, [XMLHttpRequestEventTarget.prototype]);\n    }\n    patchClass('MutationObserver');\n    patchClass('WebKitMutationObserver');\n    patchClass('IntersectionObserver');\n    patchClass('FileReader');\n});\nZone.__load_patch('on_property', function (global, Zone, api) {\n    propertyDescriptorPatch(api, global);\n    propertyPatch();\n});\nZone.__load_patch('customElements', function (global, Zone, api) {\n    registerElementPatch(global);\n    patchCustomElements(global);\n});\nZone.__load_patch('canvas', function (global) {\n    var HTMLCanvasElement = global['HTMLCanvasElement'];\n    if (typeof HTMLCanvasElement !== 'undefined' && HTMLCanvasElement.prototype &&\n        HTMLCanvasElement.prototype.toBlob) {\n        patchMacroTask(HTMLCanvasElement.prototype, 'toBlob', function (self, args) {\n            return { name: 'HTMLCanvasElement.toBlob', target: self, cbIdx: 0, args: args };\n        });\n    }\n});\nZone.__load_patch('XHR', function (global, Zone) {\n    // Treat XMLHttpRequest as a macrotask.\n    patchXHR(global);\n    var XHR_TASK = zoneSymbol('xhrTask');\n    var XHR_SYNC = zoneSymbol('xhrSync');\n    var XHR_LISTENER = zoneSymbol('xhrListener');\n    var XHR_SCHEDULED = zoneSymbol('xhrScheduled');\n    var XHR_URL = zoneSymbol('xhrURL');\n    var XHR_ERROR_BEFORE_SCHEDULED = zoneSymbol('xhrErrorBeforeScheduled');\n    function patchXHR(window) {\n        var XMLHttpRequestPrototype = XMLHttpRequest.prototype;\n        function findPendingTask(target) {\n            return target[XHR_TASK];\n        }\n        var oriAddListener = XMLHttpRequestPrototype[ZONE_SYMBOL_ADD_EVENT_LISTENER];\n        var oriRemoveListener = XMLHttpRequestPrototype[ZONE_SYMBOL_REMOVE_EVENT_LISTENER];\n        if (!oriAddListener) {\n            var XMLHttpRequestEventTarget_1 = window['XMLHttpRequestEventTarget'];\n            if (XMLHttpRequestEventTarget_1) {\n                var XMLHttpRequestEventTargetPrototype = XMLHttpRequestEventTarget_1.prototype;\n                oriAddListener = XMLHttpRequestEventTargetPrototype[ZONE_SYMBOL_ADD_EVENT_LISTENER];\n                oriRemoveListener = XMLHttpRequestEventTargetPrototype[ZONE_SYMBOL_REMOVE_EVENT_LISTENER];\n            }\n        }\n        var READY_STATE_CHANGE = 'readystatechange';\n        var SCHEDULED = 'scheduled';\n        function scheduleTask(task) {\n            var data = task.data;\n            var target = data.target;\n            target[XHR_SCHEDULED] = false;\n            target[XHR_ERROR_BEFORE_SCHEDULED] = false;\n            // remove existing event listener\n            var listener = target[XHR_LISTENER];\n            if (!oriAddListener) {\n                oriAddListener = target[ZONE_SYMBOL_ADD_EVENT_LISTENER];\n                oriRemoveListener = target[ZONE_SYMBOL_REMOVE_EVENT_LISTENER];\n            }\n            if (listener) {\n                oriRemoveListener.call(target, READY_STATE_CHANGE, listener);\n            }\n            var newListener = target[XHR_LISTENER] = function () {\n                if (target.readyState === target.DONE) {\n                    // sometimes on some browsers XMLHttpRequest will fire onreadystatechange with\n                    // readyState=4 multiple times, so we need to check task state here\n                    if (!data.aborted && target[XHR_SCHEDULED] && task.state === SCHEDULED) {\n                        // check whether the xhr has registered onload listener\n                        // if that is the case, the task should invoke after all\n                        // onload listeners finish.\n                        var loadTasks = target['__zone_symbol__loadfalse'];\n                        if (loadTasks && loadTasks.length > 0) {\n                            var oriInvoke_1 = task.invoke;\n                            task.invoke = function () {\n                                // need to load the tasks again, because in other\n                                // load listener, they may remove themselves\n                                var loadTasks = target['__zone_symbol__loadfalse'];\n                                for (var i = 0; i < loadTasks.length; i++) {\n                                    if (loadTasks[i] === task) {\n                                        loadTasks.splice(i, 1);\n                                    }\n                                }\n                                if (!data.aborted && task.state === SCHEDULED) {\n                                    oriInvoke_1.call(task);\n                                }\n                            };\n                            loadTasks.push(task);\n                        }\n                        else {\n                            task.invoke();\n                        }\n                    }\n                    else if (!data.aborted && target[XHR_SCHEDULED] === false) {\n                        // error occurs when xhr.send()\n                        target[XHR_ERROR_BEFORE_SCHEDULED] = true;\n                    }\n                }\n            };\n            oriAddListener.call(target, READY_STATE_CHANGE, newListener);\n            var storedTask = target[XHR_TASK];\n            if (!storedTask) {\n                target[XHR_TASK] = task;\n            }\n            sendNative.apply(target, data.args);\n            target[XHR_SCHEDULED] = true;\n            return task;\n        }\n        function placeholderCallback() { }\n        function clearTask(task) {\n            var data = task.data;\n            // Note - ideally, we would call data.target.removeEventListener here, but it's too late\n            // to prevent it from firing. So instead, we store info for the event listener.\n            data.aborted = true;\n            return abortNative.apply(data.target, data.args);\n        }\n        var openNative = patchMethod(XMLHttpRequestPrototype, 'open', function () { return function (self, args) {\n            self[XHR_SYNC] = args[2] == false;\n            self[XHR_URL] = args[1];\n            return openNative.apply(self, args);\n        }; });\n        var XMLHTTPREQUEST_SOURCE = 'XMLHttpRequest.send';\n        var fetchTaskAborting = zoneSymbol('fetchTaskAborting');\n        var fetchTaskScheduling = zoneSymbol('fetchTaskScheduling');\n        var sendNative = patchMethod(XMLHttpRequestPrototype, 'send', function () { return function (self, args) {\n            if (Zone.current[fetchTaskScheduling] === true) {\n                // a fetch is scheduling, so we are using xhr to polyfill fetch\n                // and because we already schedule macroTask for fetch, we should\n                // not schedule a macroTask for xhr again\n                return sendNative.apply(self, args);\n            }\n            if (self[XHR_SYNC]) {\n                // if the XHR is sync there is no task to schedule, just execute the code.\n                return sendNative.apply(self, args);\n            }\n            else {\n                var options = { target: self, url: self[XHR_URL], isPeriodic: false, args: args, aborted: false };\n                var task = scheduleMacroTaskWithCurrentZone(XMLHTTPREQUEST_SOURCE, placeholderCallback, options, scheduleTask, clearTask);\n                if (self && self[XHR_ERROR_BEFORE_SCHEDULED] === true && !options.aborted &&\n                    task.state === SCHEDULED) {\n                    // xhr request throw error when send\n                    // we should invoke task instead of leaving a scheduled\n                    // pending macroTask\n                    task.invoke();\n                }\n            }\n        }; });\n        var abortNative = patchMethod(XMLHttpRequestPrototype, 'abort', function () { return function (self, args) {\n            var task = findPendingTask(self);\n            if (task && typeof task.type == 'string') {\n                // If the XHR has already completed, do nothing.\n                // If the XHR has already been aborted, do nothing.\n                // Fix #569, call abort multiple times before done will cause\n                // macroTask task count be negative number\n                if (task.cancelFn == null || (task.data && task.data.aborted)) {\n                    return;\n                }\n                task.zone.cancelTask(task);\n            }\n            else if (Zone.current[fetchTaskAborting] === true) {\n                // the abort is called from fetch polyfill, we need to call native abort of XHR.\n                return abortNative.apply(self, args);\n            }\n            // Otherwise, we are trying to abort an XHR which has not yet been sent, so there is no\n            // task\n            // to cancel. Do nothing.\n        }; });\n    }\n});\nZone.__load_patch('geolocation', function (global) {\n    /// GEO_LOCATION\n    if (global['navigator'] && global['navigator'].geolocation) {\n        patchPrototype(global['navigator'].geolocation, ['getCurrentPosition', 'watchPosition']);\n    }\n});\nZone.__load_patch('PromiseRejectionEvent', function (global, Zone) {\n    // handle unhandled promise rejection\n    function findPromiseRejectionHandler(evtName) {\n        return function (e) {\n            var eventTasks = findEventTasks(global, evtName);\n            eventTasks.forEach(function (eventTask) {\n                // windows has added unhandledrejection event listener\n                // trigger the event listener\n                var PromiseRejectionEvent = global['PromiseRejectionEvent'];\n                if (PromiseRejectionEvent) {\n                    var evt = new PromiseRejectionEvent(evtName, { promise: e.promise, reason: e.rejection });\n                    eventTask.invoke(evt);\n                }\n            });\n        };\n    }\n    if (global['PromiseRejectionEvent']) {\n        Zone[zoneSymbol('unhandledPromiseRejectionHandler')] =\n            findPromiseRejectionHandler('unhandledrejection');\n        Zone[zoneSymbol('rejectionHandledHandler')] =\n            findPromiseRejectionHandler('rejectionhandled');\n    }\n});\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n})));\n","\r\n\r\n\r\n/**\r\n * Web Animations `@angular/platform-browser/animations`\r\n * Only required if AnimationBuilder is used within the application and using IE/Edge or Safari.\r\n * Standard animation support in Angular DOES NOT require any polyfills (as of Angular 6.0).\r\n **/\r\n// import 'web-animations-js';  // Run `npm install --save web-animations-js`.\r\n\r\n/**\r\n * By default, zone.js will patch all possible macroTask and DomEvents\r\n * user can disable parts of macroTask/DomEvents patch by setting following flags\r\n */\r\n\r\n // (window as any).__Zone_disable_requestAnimationFrame = true; // disable patch requestAnimationFrame\r\n // (window as any).__Zone_disable_on_property = true; // disable patch onProperty such as onclick\r\n // (window as any).__zone_symbol__BLACK_LISTED_EVENTS = ['scroll', 'mousemove']; // disable patch specified eventNames\r\n\r\n /*\r\n * in IE/Edge developer tools, the addEventListener will also be wrapped by zone.js\r\n * with the following flag, it will bypass `zone.js` patch for IE/Edge\r\n */\r\n// (window as any).__Zone_enable_cross_context_check = true;\r\n\r\n/***************************************************************************************************\r\n * Zone JS is required by default for Angular itself.\r\n */\r\nimport 'zone.js/dist/zone';  // Included with Angular CLI.\r\n\r\n\r\n\r\n/***************************************************************************************************\r\n * APPLICATION IMPORTS\r\n */\r\n"],"sourceRoot":""}