1#@!#!123s

22527 1#@!#!123s
: / home / ubuntu /
Filename : polyfills.js
back
"use strict";
(self["webpackChunkletsfame"] = self["webpackChunkletsfame"] || []).push([["polyfills"],{

/***/ 9932:
/*!**************************!*\
  !*** ./src/polyfills.ts ***!
  \**************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

__webpack_require__.r(__webpack_exports__);
/* harmony import */ var zone_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! zone.js */ 4924);
/* harmony import */ var zone_js__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(zone_js__WEBPACK_IMPORTED_MODULE_0__);

window.global = window;

/***/ }),

/***/ 4924:
/*!***********************************************!*\
  !*** ./node_modules/zone.js/fesm2015/zone.js ***!
  \***********************************************/
/***/ (() => {



/**
 * @license Angular v14.2.0-next.0
 * (c) 2010-2022 Google LLC. https://angular.io/
 * License: MIT
 */
/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
(function (global) {
  const performance = global['performance'];
  function mark(name) {
    performance && performance['mark'] && performance['mark'](name);
  }
  function performanceMeasure(name, label) {
    performance && performance['measure'] && performance['measure'](name, label);
  }
  mark('Zone');
  // Initialize before it's accessed below.
  // __Zone_symbol_prefix global can be used to override the default zone
  // symbol prefix with a custom one if needed.
  const symbolPrefix = global['__Zone_symbol_prefix'] || '__zone_symbol__';
  function __symbol__(name) {
    return symbolPrefix + name;
  }
  const checkDuplicate = global[__symbol__('forceDuplicateZoneCheck')] === true;
  if (global['Zone']) {
    // if global['Zone'] already exists (maybe zone.js was already loaded or
    // some other lib also registered a global object named Zone), we may need
    // to throw an error, but sometimes user may not want this error.
    // For example,
    // we have two web pages, page1 includes zone.js, page2 doesn't.
    // and the 1st time user load page1 and page2, everything work fine,
    // but when user load page2 again, error occurs because global['Zone'] already exists.
    // so we add a flag to let user choose whether to throw this error or not.
    // By default, if existing Zone is from zone.js, we will not throw the error.
    if (checkDuplicate || typeof global['Zone'].__symbol__ !== 'function') {
      throw new Error('Zone already loaded.');
    } else {
      return global['Zone'];
    }
  }
  class Zone {
    constructor(parent, zoneSpec) {
      this._parent = parent;
      this._name = zoneSpec ? zoneSpec.name || 'unnamed' : '<root>';
      this._properties = zoneSpec && zoneSpec.properties || {};
      this._zoneDelegate = new _ZoneDelegate(this, this._parent && this._parent._zoneDelegate, zoneSpec);
    }
    static assertZonePatched() {
      if (global['Promise'] !== patches['ZoneAwarePromise']) {
        throw new Error('Zone.js has detected that ZoneAwarePromise `(window|global).Promise` ' + 'has been overwritten.\n' + 'Most likely cause is that a Promise polyfill has been loaded ' + 'after Zone.js (Polyfilling Promise api is not necessary when zone.js is loaded. ' + 'If you must load one, do so before loading zone.js.)');
      }
    }
    static get root() {
      let zone = Zone.current;
      while (zone.parent) {
        zone = zone.parent;
      }
      return zone;
    }
    static get current() {
      return _currentZoneFrame.zone;
    }
    static get currentTask() {
      return _currentTask;
    }
    // tslint:disable-next-line:require-internal-with-underscore
    static __load_patch(name, fn, ignoreDuplicate = false) {
      if (patches.hasOwnProperty(name)) {
        // `checkDuplicate` option is defined from global variable
        // so it works for all modules.
        // `ignoreDuplicate` can work for the specified module
        if (!ignoreDuplicate && checkDuplicate) {
          throw Error('Already loaded patch: ' + name);
        }
      } else if (!global['__Zone_disable_' + name]) {
        const perfName = 'Zone:' + name;
        mark(perfName);
        patches[name] = fn(global, Zone, _api);
        performanceMeasure(perfName, perfName);
      }
    }
    get parent() {
      return this._parent;
    }
    get name() {
      return this._name;
    }
    get(key) {
      const zone = this.getZoneWith(key);
      if (zone) return zone._properties[key];
    }
    getZoneWith(key) {
      let current = this;
      while (current) {
        if (current._properties.hasOwnProperty(key)) {
          return current;
        }
        current = current._parent;
      }
      return null;
    }
    fork(zoneSpec) {
      if (!zoneSpec) throw new Error('ZoneSpec required!');
      return this._zoneDelegate.fork(this, zoneSpec);
    }
    wrap(callback, source) {
      if (typeof callback !== 'function') {
        throw new Error('Expecting function got: ' + callback);
      }
      const _callback = this._zoneDelegate.intercept(this, callback, source);
      const zone = this;
      return function () {
        return zone.runGuarded(_callback, this, arguments, source);
      };
    }
    run(callback, applyThis, applyArgs, source) {
      _currentZoneFrame = {
        parent: _currentZoneFrame,
        zone: this
      };
      try {
        return this._zoneDelegate.invoke(this, callback, applyThis, applyArgs, source);
      } finally {
        _currentZoneFrame = _currentZoneFrame.parent;
      }
    }
    runGuarded(callback, applyThis = null, applyArgs, source) {
      _currentZoneFrame = {
        parent: _currentZoneFrame,
        zone: this
      };
      try {
        try {
          return this._zoneDelegate.invoke(this, callback, applyThis, applyArgs, source);
        } catch (error) {
          if (this._zoneDelegate.handleError(this, error)) {
            throw error;
          }
        }
      } finally {
        _currentZoneFrame = _currentZoneFrame.parent;
      }
    }
    runTask(task, applyThis, applyArgs) {
      if (task.zone != this) {
        throw new Error('A task can only be run in the zone of creation! (Creation: ' + (task.zone || NO_ZONE).name + '; Execution: ' + this.name + ')');
      }
      // https://github.com/angular/zone.js/issues/778, sometimes eventTask
      // will run in notScheduled(canceled) state, we should not try to
      // run such kind of task but just return
      if (task.state === notScheduled && (task.type === eventTask || task.type === macroTask)) {
        return;
      }
      const reEntryGuard = task.state != running;
      reEntryGuard && task._transitionTo(running, scheduled);
      task.runCount++;
      const previousTask = _currentTask;
      _currentTask = task;
      _currentZoneFrame = {
        parent: _currentZoneFrame,
        zone: this
      };
      try {
        if (task.type == macroTask && task.data && !task.data.isPeriodic) {
          task.cancelFn = undefined;
        }
        try {
          return this._zoneDelegate.invokeTask(this, task, applyThis, applyArgs);
        } catch (error) {
          if (this._zoneDelegate.handleError(this, error)) {
            throw error;
          }
        }
      } finally {
        // if the task's state is notScheduled or unknown, then it has already been cancelled
        // we should not reset the state to scheduled
        if (task.state !== notScheduled && task.state !== unknown) {
          if (task.type == eventTask || task.data && task.data.isPeriodic) {
            reEntryGuard && task._transitionTo(scheduled, running);
          } else {
            task.runCount = 0;
            this._updateTaskCount(task, -1);
            reEntryGuard && task._transitionTo(notScheduled, running, notScheduled);
          }
        }
        _currentZoneFrame = _currentZoneFrame.parent;
        _currentTask = previousTask;
      }
    }
    scheduleTask(task) {
      if (task.zone && task.zone !== this) {
        // check if the task was rescheduled, the newZone
        // should not be the children of the original zone
        let newZone = this;
        while (newZone) {
          if (newZone === task.zone) {
            throw Error(`can not reschedule task to ${this.name} which is descendants of the original zone ${task.zone.name}`);
          }
          newZone = newZone.parent;
        }
      }
      task._transitionTo(scheduling, notScheduled);
      const zoneDelegates = [];
      task._zoneDelegates = zoneDelegates;
      task._zone = this;
      try {
        task = this._zoneDelegate.scheduleTask(this, task);
      } catch (err) {
        // should set task's state to unknown when scheduleTask throw error
        // because the err may from reschedule, so the fromState maybe notScheduled
        task._transitionTo(unknown, scheduling, notScheduled);
        // TODO: @JiaLiPassion, should we check the result from handleError?
        this._zoneDelegate.handleError(this, err);
        throw err;
      }
      if (task._zoneDelegates === zoneDelegates) {
        // we have to check because internally the delegate can reschedule the task.
        this._updateTaskCount(task, 1);
      }
      if (task.state == scheduling) {
        task._transitionTo(scheduled, scheduling);
      }
      return task;
    }
    scheduleMicroTask(source, callback, data, customSchedule) {
      return this.scheduleTask(new ZoneTask(microTask, source, callback, data, customSchedule, undefined));
    }
    scheduleMacroTask(source, callback, data, customSchedule, customCancel) {
      return this.scheduleTask(new ZoneTask(macroTask, source, callback, data, customSchedule, customCancel));
    }
    scheduleEventTask(source, callback, data, customSchedule, customCancel) {
      return this.scheduleTask(new ZoneTask(eventTask, source, callback, data, customSchedule, customCancel));
    }
    cancelTask(task) {
      if (task.zone != this) throw new Error('A task can only be cancelled in the zone of creation! (Creation: ' + (task.zone || NO_ZONE).name + '; Execution: ' + this.name + ')');
      task._transitionTo(canceling, scheduled, running);
      try {
        this._zoneDelegate.cancelTask(this, task);
      } catch (err) {
        // if error occurs when cancelTask, transit the state to unknown
        task._transitionTo(unknown, canceling);
        this._zoneDelegate.handleError(this, err);
        throw err;
      }
      this._updateTaskCount(task, -1);
      task._transitionTo(notScheduled, canceling);
      task.runCount = 0;
      return task;
    }
    _updateTaskCount(task, count) {
      const zoneDelegates = task._zoneDelegates;
      if (count == -1) {
        task._zoneDelegates = null;
      }
      for (let i = 0; i < zoneDelegates.length; i++) {
        zoneDelegates[i]._updateTaskCount(task.type, count);
      }
    }
  }
  // tslint:disable-next-line:require-internal-with-underscore
  Zone.__symbol__ = __symbol__;
  const DELEGATE_ZS = {
    name: '',
    onHasTask: (delegate, _, target, hasTaskState) => delegate.hasTask(target, hasTaskState),
    onScheduleTask: (delegate, _, target, task) => delegate.scheduleTask(target, task),
    onInvokeTask: (delegate, _, target, task, applyThis, applyArgs) => delegate.invokeTask(target, task, applyThis, applyArgs),
    onCancelTask: (delegate, _, target, task) => delegate.cancelTask(target, task)
  };
  class _ZoneDelegate {
    constructor(zone, parentDelegate, zoneSpec) {
      this._taskCounts = {
        'microTask': 0,
        'macroTask': 0,
        'eventTask': 0
      };
      this.zone = zone;
      this._parentDelegate = parentDelegate;
      this._forkZS = zoneSpec && (zoneSpec && zoneSpec.onFork ? zoneSpec : parentDelegate._forkZS);
      this._forkDlgt = zoneSpec && (zoneSpec.onFork ? parentDelegate : parentDelegate._forkDlgt);
      this._forkCurrZone = zoneSpec && (zoneSpec.onFork ? this.zone : parentDelegate._forkCurrZone);
      this._interceptZS = zoneSpec && (zoneSpec.onIntercept ? zoneSpec : parentDelegate._interceptZS);
      this._interceptDlgt = zoneSpec && (zoneSpec.onIntercept ? parentDelegate : parentDelegate._interceptDlgt);
      this._interceptCurrZone = zoneSpec && (zoneSpec.onIntercept ? this.zone : parentDelegate._interceptCurrZone);
      this._invokeZS = zoneSpec && (zoneSpec.onInvoke ? zoneSpec : parentDelegate._invokeZS);
      this._invokeDlgt = zoneSpec && (zoneSpec.onInvoke ? parentDelegate : parentDelegate._invokeDlgt);
      this._invokeCurrZone = zoneSpec && (zoneSpec.onInvoke ? this.zone : parentDelegate._invokeCurrZone);
      this._handleErrorZS = zoneSpec && (zoneSpec.onHandleError ? zoneSpec : parentDelegate._handleErrorZS);
      this._handleErrorDlgt = zoneSpec && (zoneSpec.onHandleError ? parentDelegate : parentDelegate._handleErrorDlgt);
      this._handleErrorCurrZone = zoneSpec && (zoneSpec.onHandleError ? this.zone : parentDelegate._handleErrorCurrZone);
      this._scheduleTaskZS = zoneSpec && (zoneSpec.onScheduleTask ? zoneSpec : parentDelegate._scheduleTaskZS);
      this._scheduleTaskDlgt = zoneSpec && (zoneSpec.onScheduleTask ? parentDelegate : parentDelegate._scheduleTaskDlgt);
      this._scheduleTaskCurrZone = zoneSpec && (zoneSpec.onScheduleTask ? this.zone : parentDelegate._scheduleTaskCurrZone);
      this._invokeTaskZS = zoneSpec && (zoneSpec.onInvokeTask ? zoneSpec : parentDelegate._invokeTaskZS);
      this._invokeTaskDlgt = zoneSpec && (zoneSpec.onInvokeTask ? parentDelegate : parentDelegate._invokeTaskDlgt);
      this._invokeTaskCurrZone = zoneSpec && (zoneSpec.onInvokeTask ? this.zone : parentDelegate._invokeTaskCurrZone);
      this._cancelTaskZS = zoneSpec && (zoneSpec.onCancelTask ? zoneSpec : parentDelegate._cancelTaskZS);
      this._cancelTaskDlgt = zoneSpec && (zoneSpec.onCancelTask ? parentDelegate : parentDelegate._cancelTaskDlgt);
      this._cancelTaskCurrZone = zoneSpec && (zoneSpec.onCancelTask ? this.zone : parentDelegate._cancelTaskCurrZone);
      this._hasTaskZS = null;
      this._hasTaskDlgt = null;
      this._hasTaskDlgtOwner = null;
      this._hasTaskCurrZone = null;
      const zoneSpecHasTask = zoneSpec && zoneSpec.onHasTask;
      const parentHasTask = parentDelegate && parentDelegate._hasTaskZS;
      if (zoneSpecHasTask || parentHasTask) {
        // If we need to report hasTask, than this ZS needs to do ref counting on tasks. In such
        // a case all task related interceptors must go through this ZD. We can't short circuit it.
        this._hasTaskZS = zoneSpecHasTask ? zoneSpec : DELEGATE_ZS;
        this._hasTaskDlgt = parentDelegate;
        this._hasTaskDlgtOwner = this;
        this._hasTaskCurrZone = zone;
        if (!zoneSpec.onScheduleTask) {
          this._scheduleTaskZS = DELEGATE_ZS;
          this._scheduleTaskDlgt = parentDelegate;
          this._scheduleTaskCurrZone = this.zone;
        }
        if (!zoneSpec.onInvokeTask) {
          this._invokeTaskZS = DELEGATE_ZS;
          this._invokeTaskDlgt = parentDelegate;
          this._invokeTaskCurrZone = this.zone;
        }
        if (!zoneSpec.onCancelTask) {
          this._cancelTaskZS = DELEGATE_ZS;
          this._cancelTaskDlgt = parentDelegate;
          this._cancelTaskCurrZone = this.zone;
        }
      }
    }
    fork(targetZone, zoneSpec) {
      return this._forkZS ? this._forkZS.onFork(this._forkDlgt, this.zone, targetZone, zoneSpec) : new Zone(targetZone, zoneSpec);
    }
    intercept(targetZone, callback, source) {
      return this._interceptZS ? this._interceptZS.onIntercept(this._interceptDlgt, this._interceptCurrZone, targetZone, callback, source) : callback;
    }
    invoke(targetZone, callback, applyThis, applyArgs, source) {
      return this._invokeZS ? this._invokeZS.onInvoke(this._invokeDlgt, this._invokeCurrZone, targetZone, callback, applyThis, applyArgs, source) : callback.apply(applyThis, applyArgs);
    }
    handleError(targetZone, error) {
      return this._handleErrorZS ? this._handleErrorZS.onHandleError(this._handleErrorDlgt, this._handleErrorCurrZone, targetZone, error) : true;
    }
    scheduleTask(targetZone, task) {
      let returnTask = task;
      if (this._scheduleTaskZS) {
        if (this._hasTaskZS) {
          returnTask._zoneDelegates.push(this._hasTaskDlgtOwner);
        }
        // clang-format off
        returnTask = this._scheduleTaskZS.onScheduleTask(this._scheduleTaskDlgt, this._scheduleTaskCurrZone, targetZone, task);
        // clang-format on
        if (!returnTask) returnTask = task;
      } else {
        if (task.scheduleFn) {
          task.scheduleFn(task);
        } else if (task.type == microTask) {
          scheduleMicroTask(task);
        } else {
          throw new Error('Task is missing scheduleFn.');
        }
      }
      return returnTask;
    }
    invokeTask(targetZone, task, applyThis, applyArgs) {
      return this._invokeTaskZS ? this._invokeTaskZS.onInvokeTask(this._invokeTaskDlgt, this._invokeTaskCurrZone, targetZone, task, applyThis, applyArgs) : task.callback.apply(applyThis, applyArgs);
    }
    cancelTask(targetZone, task) {
      let value;
      if (this._cancelTaskZS) {
        value = this._cancelTaskZS.onCancelTask(this._cancelTaskDlgt, this._cancelTaskCurrZone, targetZone, task);
      } else {
        if (!task.cancelFn) {
          throw Error('Task is not cancelable');
        }
        value = task.cancelFn(task);
      }
      return value;
    }
    hasTask(targetZone, isEmpty) {
      // hasTask should not throw error so other ZoneDelegate
      // can still trigger hasTask callback
      try {
        this._hasTaskZS && this._hasTaskZS.onHasTask(this._hasTaskDlgt, this._hasTaskCurrZone, targetZone, isEmpty);
      } catch (err) {
        this.handleError(targetZone, err);
      }
    }
    // tslint:disable-next-line:require-internal-with-underscore
    _updateTaskCount(type, count) {
      const counts = this._taskCounts;
      const prev = counts[type];
      const next = counts[type] = prev + count;
      if (next < 0) {
        throw new Error('More tasks executed then were scheduled.');
      }
      if (prev == 0 || next == 0) {
        const isEmpty = {
          microTask: counts['microTask'] > 0,
          macroTask: counts['macroTask'] > 0,
          eventTask: counts['eventTask'] > 0,
          change: type
        };
        this.hasTask(this.zone, isEmpty);
      }
    }
  }
  class ZoneTask {
    constructor(type, source, callback, options, scheduleFn, cancelFn) {
      // tslint:disable-next-line:require-internal-with-underscore
      this._zone = null;
      this.runCount = 0;
      // tslint:disable-next-line:require-internal-with-underscore
      this._zoneDelegates = null;
      // tslint:disable-next-line:require-internal-with-underscore
      this._state = 'notScheduled';
      this.type = type;
      this.source = source;
      this.data = options;
      this.scheduleFn = scheduleFn;
      this.cancelFn = cancelFn;
      if (!callback) {
        throw new Error('callback is not defined');
      }
      this.callback = callback;
      const self = this;
      // TODO: @JiaLiPassion options should have interface
      if (type === eventTask && options && options.useG) {
        this.invoke = ZoneTask.invokeTask;
      } else {
        this.invoke = function () {
          return ZoneTask.invokeTask.call(global, self, this, arguments);
        };
      }
    }
    static invokeTask(task, target, args) {
      if (!task) {
        task = this;
      }
      _numberOfNestedTaskFrames++;
      try {
        task.runCount++;
        return task.zone.runTask(task, target, args);
      } finally {
        if (_numberOfNestedTaskFrames == 1) {
          drainMicroTaskQueue();
        }
        _numberOfNestedTaskFrames--;
      }
    }
    get zone() {
      return this._zone;
    }
    get state() {
      return this._state;
    }
    cancelScheduleRequest() {
      this._transitionTo(notScheduled, scheduling);
    }
    // tslint:disable-next-line:require-internal-with-underscore
    _transitionTo(toState, fromState1, fromState2) {
      if (this._state === fromState1 || this._state === fromState2) {
        this._state = toState;
        if (toState == notScheduled) {
          this._zoneDelegates = null;
        }
      } else {
        throw new Error(`${this.type} '${this.source}': can not transition to '${toState}', expecting state '${fromState1}'${fromState2 ? ' or \'' + fromState2 + '\'' : ''}, was '${this._state}'.`);
      }
    }
    toString() {
      if (this.data && typeof this.data.handleId !== 'undefined') {
        return this.data.handleId.toString();
      } else {
        return Object.prototype.toString.call(this);
      }
    }
    // add toJSON method to prevent cyclic error when
    // call JSON.stringify(zoneTask)
    toJSON() {
      return {
        type: this.type,
        state: this.state,
        source: this.source,
        zone: this.zone.name,
        runCount: this.runCount
      };
    }
  }
  //////////////////////////////////////////////////////
  //////////////////////////////////////////////////////
  ///  MICROTASK QUEUE
  //////////////////////////////////////////////////////
  //////////////////////////////////////////////////////
  const symbolSetTimeout = __symbol__('setTimeout');
  const symbolPromise = __symbol__('Promise');
  const symbolThen = __symbol__('then');
  let _microTaskQueue = [];
  let _isDrainingMicrotaskQueue = false;
  let nativeMicroTaskQueuePromise;
  function nativeScheduleMicroTask(func) {
    if (!nativeMicroTaskQueuePromise) {
      if (global[symbolPromise]) {
        nativeMicroTaskQueuePromise = global[symbolPromise].resolve(0);
      }
    }
    if (nativeMicroTaskQueuePromise) {
      let nativeThen = nativeMicroTaskQueuePromise[symbolThen];
      if (!nativeThen) {
        // native Promise is not patchable, we need to use `then` directly
        // issue 1078
        nativeThen = nativeMicroTaskQueuePromise['then'];
      }
      nativeThen.call(nativeMicroTaskQueuePromise, func);
    } else {
      global[symbolSetTimeout](func, 0);
    }
  }
  function scheduleMicroTask(task) {
    // if we are not running in any task, and there has not been anything scheduled
    // we must bootstrap the initial task creation by manually scheduling the drain
    if (_numberOfNestedTaskFrames === 0 && _microTaskQueue.length === 0) {
      // We are not running in Task, so we need to kickstart the microtask queue.
      nativeScheduleMicroTask(drainMicroTaskQueue);
    }
    task && _microTaskQueue.push(task);
  }
  function drainMicroTaskQueue() {
    if (!_isDrainingMicrotaskQueue) {
      _isDrainingMicrotaskQueue = true;
      while (_microTaskQueue.length) {
        const queue = _microTaskQueue;
        _microTaskQueue = [];
        for (let i = 0; i < queue.length; i++) {
          const task = queue[i];
          try {
            task.zone.runTask(task, null, null);
          } catch (error) {
            _api.onUnhandledError(error);
          }
        }
      }
      _api.microtaskDrainDone();
      _isDrainingMicrotaskQueue = false;
    }
  }
  //////////////////////////////////////////////////////
  //////////////////////////////////////////////////////
  ///  BOOTSTRAP
  //////////////////////////////////////////////////////
  //////////////////////////////////////////////////////
  const NO_ZONE = {
    name: 'NO ZONE'
  };
  const notScheduled = 'notScheduled',
    scheduling = 'scheduling',
    scheduled = 'scheduled',
    running = 'running',
    canceling = 'canceling',
    unknown = 'unknown';
  const microTask = 'microTask',
    macroTask = 'macroTask',
    eventTask = 'eventTask';
  const patches = {};
  const _api = {
    symbol: __symbol__,
    currentZoneFrame: () => _currentZoneFrame,
    onUnhandledError: noop,
    microtaskDrainDone: noop,
    scheduleMicroTask: scheduleMicroTask,
    showUncaughtError: () => !Zone[__symbol__('ignoreConsoleErrorUncaughtError')],
    patchEventTarget: () => [],
    patchOnProperties: noop,
    patchMethod: () => noop,
    bindArguments: () => [],
    patchThen: () => noop,
    patchMacroTask: () => noop,
    patchEventPrototype: () => noop,
    isIEOrEdge: () => false,
    getGlobalObjects: () => undefined,
    ObjectDefineProperty: () => noop,
    ObjectGetOwnPropertyDescriptor: () => undefined,
    ObjectCreate: () => undefined,
    ArraySlice: () => [],
    patchClass: () => noop,
    wrapWithCurrentZone: () => noop,
    filterProperties: () => [],
    attachOriginToPatched: () => noop,
    _redefineProperty: () => noop,
    patchCallbacks: () => noop,
    nativeScheduleMicroTask: nativeScheduleMicroTask
  };
  let _currentZoneFrame = {
    parent: null,
    zone: new Zone(null, null)
  };
  let _currentTask = null;
  let _numberOfNestedTaskFrames = 0;
  function noop() {}
  performanceMeasure('Zone', 'Zone');
  return global['Zone'] = Zone;
})(typeof window !== 'undefined' && window || typeof self !== 'undefined' && self || global);

/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
/**
 * Suppress closure compiler errors about unknown 'Zone' variable
 * @fileoverview
 * @suppress {undefinedVars,globalThis,missingRequire}
 */
/// <reference types="node"/>
// issue #989, to reduce bundle size, use short name
/** Object.getOwnPropertyDescriptor */
const ObjectGetOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
/** Object.defineProperty */
const ObjectDefineProperty = Object.defineProperty;
/** Object.getPrototypeOf */
const ObjectGetPrototypeOf = Object.getPrototypeOf;
/** Object.create */
const ObjectCreate = Object.create;
/** Array.prototype.slice */
const ArraySlice = Array.prototype.slice;
/** addEventListener string const */
const ADD_EVENT_LISTENER_STR = 'addEventListener';
/** removeEventListener string const */
const REMOVE_EVENT_LISTENER_STR = 'removeEventListener';
/** zoneSymbol addEventListener */
const ZONE_SYMBOL_ADD_EVENT_LISTENER = Zone.__symbol__(ADD_EVENT_LISTENER_STR);
/** zoneSymbol removeEventListener */
const ZONE_SYMBOL_REMOVE_EVENT_LISTENER = Zone.__symbol__(REMOVE_EVENT_LISTENER_STR);
/** true string const */
const TRUE_STR = 'true';
/** false string const */
const FALSE_STR = 'false';
/** Zone symbol prefix string const. */
const ZONE_SYMBOL_PREFIX = Zone.__symbol__('');
function wrapWithCurrentZone(callback, source) {
  return Zone.current.wrap(callback, source);
}
function scheduleMacroTaskWithCurrentZone(source, callback, data, customSchedule, customCancel) {
  return Zone.current.scheduleMacroTask(source, callback, data, customSchedule, customCancel);
}
const zoneSymbol = Zone.__symbol__;
const isWindowExists = typeof window !== 'undefined';
const internalWindow = isWindowExists ? window : undefined;
const _global = isWindowExists && internalWindow || typeof self === 'object' && self || global;
const REMOVE_ATTRIBUTE = 'removeAttribute';
function bindArguments(args, source) {
  for (let i = args.length - 1; i >= 0; i--) {
    if (typeof args[i] === 'function') {
      args[i] = wrapWithCurrentZone(args[i], source + '_' + i);
    }
  }
  return args;
}
function patchPrototype(prototype, fnNames) {
  const source = prototype.constructor['name'];
  for (let i = 0; i < fnNames.length; i++) {
    const name = fnNames[i];
    const delegate = prototype[name];
    if (delegate) {
      const prototypeDesc = ObjectGetOwnPropertyDescriptor(prototype, name);
      if (!isPropertyWritable(prototypeDesc)) {
        continue;
      }
      prototype[name] = (delegate => {
        const patched = function () {
          return delegate.apply(this, bindArguments(arguments, source + '.' + name));
        };
        attachOriginToPatched(patched, delegate);
        return patched;
      })(delegate);
    }
  }
}
function isPropertyWritable(propertyDesc) {
  if (!propertyDesc) {
    return true;
  }
  if (propertyDesc.writable === false) {
    return false;
  }
  return !(typeof propertyDesc.get === 'function' && typeof propertyDesc.set === 'undefined');
}
const isWebWorker = typeof WorkerGlobalScope !== 'undefined' && self instanceof WorkerGlobalScope;
// Make sure to access `process` through `_global` so that WebPack does not accidentally browserify
// this code.
const isNode = !('nw' in _global) && typeof _global.process !== 'undefined' && {}.toString.call(_global.process) === '[object process]';
const isBrowser = !isNode && !isWebWorker && !!(isWindowExists && internalWindow['HTMLElement']);
// we are in electron of nw, so we are both browser and nodejs
// Make sure to access `process` through `_global` so that WebPack does not accidentally browserify
// this code.
const isMix = typeof _global.process !== 'undefined' && {}.toString.call(_global.process) === '[object process]' && !isWebWorker && !!(isWindowExists && internalWindow['HTMLElement']);
const zoneSymbolEventNames$1 = {};
const wrapFn = function (event) {
  // https://github.com/angular/zone.js/issues/911, in IE, sometimes
  // event will be undefined, so we need to use window.event
  event = event || _global.event;
  if (!event) {
    return;
  }
  let eventNameSymbol = zoneSymbolEventNames$1[event.type];
  if (!eventNameSymbol) {
    eventNameSymbol = zoneSymbolEventNames$1[event.type] = zoneSymbol('ON_PROPERTY' + event.type);
  }
  const target = this || event.target || _global;
  const listener = target[eventNameSymbol];
  let result;
  if (isBrowser && target === internalWindow && event.type === 'error') {
    // window.onerror have different signature
    // https://developer.mozilla.org/en-US/docs/Web/API/GlobalEventHandlers/onerror#window.onerror
    // and onerror callback will prevent default when callback return true
    const errorEvent = event;
    result = listener && listener.call(this, errorEvent.message, errorEvent.filename, errorEvent.lineno, errorEvent.colno, errorEvent.error);
    if (result === true) {
      event.preventDefault();
    }
  } else {
    result = listener && listener.apply(this, arguments);
    if (result != undefined && !result) {
      event.preventDefault();
    }
  }
  return result;
};
function patchProperty(obj, prop, prototype) {
  let desc = ObjectGetOwnPropertyDescriptor(obj, prop);
  if (!desc && prototype) {
    // when patch window object, use prototype to check prop exist or not
    const prototypeDesc = ObjectGetOwnPropertyDescriptor(prototype, prop);
    if (prototypeDesc) {
      desc = {
        enumerable: true,
        configurable: true
      };
    }
  }
  // if the descriptor not exists or is not configurable
  // just return
  if (!desc || !desc.configurable) {
    return;
  }
  const onPropPatchedSymbol = zoneSymbol('on' + prop + 'patched');
  if (obj.hasOwnProperty(onPropPatchedSymbol) && obj[onPropPatchedSymbol]) {
    return;
  }
  // A property descriptor cannot have getter/setter and be writable
  // deleting the writable and value properties avoids this error:
  //
  // TypeError: property descriptors must not specify a value or be writable when a
  // getter or setter has been specified
  delete desc.writable;
  delete desc.value;
  const originalDescGet = desc.get;
  const originalDescSet = desc.set;
  // slice(2) cuz 'onclick' -> 'click', etc
  const eventName = prop.slice(2);
  let eventNameSymbol = zoneSymbolEventNames$1[eventName];
  if (!eventNameSymbol) {
    eventNameSymbol = zoneSymbolEventNames$1[eventName] = zoneSymbol('ON_PROPERTY' + eventName);
  }
  desc.set = function (newValue) {
    // in some of windows's onproperty callback, this is undefined
    // so we need to check it
    let target = this;
    if (!target && obj === _global) {
      target = _global;
    }
    if (!target) {
      return;
    }
    const previousValue = target[eventNameSymbol];
    if (typeof previousValue === 'function') {
      target.removeEventListener(eventName, wrapFn);
    }
    // issue #978, when onload handler was added before loading zone.js
    // we should remove it with originalDescSet
    originalDescSet && originalDescSet.call(target, null);
    target[eventNameSymbol] = newValue;
    if (typeof newValue === 'function') {
      target.addEventListener(eventName, wrapFn, false);
    }
  };
  // The getter would return undefined for unassigned properties but the default value of an
  // unassigned property is null
  desc.get = function () {
    // in some of windows's onproperty callback, this is undefined
    // so we need to check it
    let target = this;
    if (!target && obj === _global) {
      target = _global;
    }
    if (!target) {
      return null;
    }
    const listener = target[eventNameSymbol];
    if (listener) {
      return listener;
    } else if (originalDescGet) {
      // result will be null when use inline event attribute,
      // such as <button onclick="func();">OK</button>
      // because the onclick function is internal raw uncompiled handler
      // the onclick will be evaluated when first time event was triggered or
      // the property is accessed, https://github.com/angular/zone.js/issues/525
      // so we should use original native get to retrieve the handler
      let value = originalDescGet.call(this);
      if (value) {
        desc.set.call(this, value);
        if (typeof target[REMOVE_ATTRIBUTE] === 'function') {
          target.removeAttribute(prop);
        }
        return value;
      }
    }
    return null;
  };
  ObjectDefineProperty(obj, prop, desc);
  obj[onPropPatchedSymbol] = true;
}
function patchOnProperties(obj, properties, prototype) {
  if (properties) {
    for (let i = 0; i < properties.length; i++) {
      patchProperty(obj, 'on' + properties[i], prototype);
    }
  } else {
    const onProperties = [];
    for (const prop in obj) {
      if (prop.slice(0, 2) == 'on') {
        onProperties.push(prop);
      }
    }
    for (let j = 0; j < onProperties.length; j++) {
      patchProperty(obj, onProperties[j], prototype);
    }
  }
}
const originalInstanceKey = zoneSymbol('originalInstance');
// wrap some native API on `window`
function patchClass(className) {
  const OriginalClass = _global[className];
  if (!OriginalClass) return;
  // keep original class in global
  _global[zoneSymbol(className)] = OriginalClass;
  _global[className] = function () {
    const a = bindArguments(arguments, className);
    switch (a.length) {
      case 0:
        this[originalInstanceKey] = new OriginalClass();
        break;
      case 1:
        this[originalInstanceKey] = new OriginalClass(a[0]);
        break;
      case 2:
        this[originalInstanceKey] = new OriginalClass(a[0], a[1]);
        break;
      case 3:
        this[originalInstanceKey] = new OriginalClass(a[0], a[1], a[2]);
        break;
      case 4:
        this[originalInstanceKey] = new OriginalClass(a[0], a[1], a[2], a[3]);
        break;
      default:
        throw new Error('Arg list too long.');
    }
  };
  // attach original delegate to patched function
  attachOriginToPatched(_global[className], OriginalClass);
  const instance = new OriginalClass(function () {});
  let prop;
  for (prop in instance) {
    // https://bugs.webkit.org/show_bug.cgi?id=44721
    if (className === 'XMLHttpRequest' && prop === 'responseBlob') continue;
    (function (prop) {
      if (typeof instance[prop] === 'function') {
        _global[className].prototype[prop] = function () {
          return this[originalInstanceKey][prop].apply(this[originalInstanceKey], arguments);
        };
      } else {
        ObjectDefineProperty(_global[className].prototype, prop, {
          set: function (fn) {
            if (typeof fn === 'function') {
              this[originalInstanceKey][prop] = wrapWithCurrentZone(fn, className + '.' + prop);
              // keep callback in wrapped function so we can
              // use it in Function.prototype.toString to return
              // the native one.
              attachOriginToPatched(this[originalInstanceKey][prop], fn);
            } else {
              this[originalInstanceKey][prop] = fn;
            }
          },
          get: function () {
            return this[originalInstanceKey][prop];
          }
        });
      }
    })(prop);
  }
  for (prop in OriginalClass) {
    if (prop !== 'prototype' && OriginalClass.hasOwnProperty(prop)) {
      _global[className][prop] = OriginalClass[prop];
    }
  }
}
function patchMethod(target, name, patchFn) {
  let proto = target;
  while (proto && !proto.hasOwnProperty(name)) {
    proto = ObjectGetPrototypeOf(proto);
  }
  if (!proto && target[name]) {
    // somehow we did not find it, but we can see it. This happens on IE for Window properties.
    proto = target;
  }
  const delegateName = zoneSymbol(name);
  let delegate = null;
  if (proto && (!(delegate = proto[delegateName]) || !proto.hasOwnProperty(delegateName))) {
    delegate = proto[delegateName] = proto[name];
    // check whether proto[name] is writable
    // some property is readonly in safari, such as HtmlCanvasElement.prototype.toBlob
    const desc = proto && ObjectGetOwnPropertyDescriptor(proto, name);
    if (isPropertyWritable(desc)) {
      const patchDelegate = patchFn(delegate, delegateName, name);
      proto[name] = function () {
        return patchDelegate(this, arguments);
      };
      attachOriginToPatched(proto[name], delegate);
    }
  }
  return delegate;
}
// TODO: @JiaLiPassion, support cancel task later if necessary
function patchMacroTask(obj, funcName, metaCreator) {
  let setNative = null;
  function scheduleTask(task) {
    const data = task.data;
    data.args[data.cbIdx] = function () {
      task.invoke.apply(this, arguments);
    };
    setNative.apply(data.target, data.args);
    return task;
  }
  setNative = patchMethod(obj, funcName, delegate => function (self, args) {
    const meta = metaCreator(self, args);
    if (meta.cbIdx >= 0 && typeof args[meta.cbIdx] === 'function') {
      return scheduleMacroTaskWithCurrentZone(meta.name, args[meta.cbIdx], meta, scheduleTask);
    } else {
      // cause an error by calling it directly.
      return delegate.apply(self, args);
    }
  });
}
function attachOriginToPatched(patched, original) {
  patched[zoneSymbol('OriginalDelegate')] = original;
}
let isDetectedIEOrEdge = false;
let ieOrEdge = false;
function isIE() {
  try {
    const ua = internalWindow.navigator.userAgent;
    if (ua.indexOf('MSIE ') !== -1 || ua.indexOf('Trident/') !== -1) {
      return true;
    }
  } catch (error) {}
  return false;
}
function isIEOrEdge() {
  if (isDetectedIEOrEdge) {
    return ieOrEdge;
  }
  isDetectedIEOrEdge = true;
  try {
    const ua = internalWindow.navigator.userAgent;
    if (ua.indexOf('MSIE ') !== -1 || ua.indexOf('Trident/') !== -1 || ua.indexOf('Edge/') !== -1) {
      ieOrEdge = true;
    }
  } catch (error) {}
  return ieOrEdge;
}

/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
Zone.__load_patch('ZoneAwarePromise', (global, Zone, api) => {
  const ObjectGetOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
  const ObjectDefineProperty = Object.defineProperty;
  function readableObjectToString(obj) {
    if (obj && obj.toString === Object.prototype.toString) {
      const className = obj.constructor && obj.constructor.name;
      return (className ? className : '') + ': ' + JSON.stringify(obj);
    }
    return obj ? obj.toString() : Object.prototype.toString.call(obj);
  }
  const __symbol__ = api.symbol;
  const _uncaughtPromiseErrors = [];
  const isDisableWrappingUncaughtPromiseRejection = global[__symbol__('DISABLE_WRAPPING_UNCAUGHT_PROMISE_REJECTION')] === true;
  const symbolPromise = __symbol__('Promise');
  const symbolThen = __symbol__('then');
  const creationTrace = '__creationTrace__';
  api.onUnhandledError = e => {
    if (api.showUncaughtError()) {
      const rejection = e && e.rejection;
      if (rejection) {
        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);
      } else {
        console.error(e);
      }
    }
  };
  api.microtaskDrainDone = () => {
    while (_uncaughtPromiseErrors.length) {
      const uncaughtPromiseError = _uncaughtPromiseErrors.shift();
      try {
        uncaughtPromiseError.zone.runGuarded(() => {
          if (uncaughtPromiseError.throwOriginal) {
            throw uncaughtPromiseError.rejection;
          }
          throw uncaughtPromiseError;
        });
      } catch (error) {
        handleUnhandledRejection(error);
      }
    }
  };
  const UNHANDLED_PROMISE_REJECTION_HANDLER_SYMBOL = __symbol__('unhandledPromiseRejectionHandler');
  function handleUnhandledRejection(e) {
    api.onUnhandledError(e);
    try {
      const handler = Zone[UNHANDLED_PROMISE_REJECTION_HANDLER_SYMBOL];
      if (typeof handler === 'function') {
        handler.call(this, e);
      }
    } catch (err) {}
  }
  function isThenable(value) {
    return value && value.then;
  }
  function forwardResolution(value) {
    return value;
  }
  function forwardRejection(rejection) {
    return ZoneAwarePromise.reject(rejection);
  }
  const symbolState = __symbol__('state');
  const symbolValue = __symbol__('value');
  const symbolFinally = __symbol__('finally');
  const symbolParentPromiseValue = __symbol__('parentPromiseValue');
  const symbolParentPromiseState = __symbol__('parentPromiseState');
  const source = 'Promise.then';
  const UNRESOLVED = null;
  const RESOLVED = true;
  const REJECTED = false;
  const REJECTED_NO_CATCH = 0;
  function makeResolver(promise, state) {
    return v => {
      try {
        resolvePromise(promise, state, v);
      } catch (err) {
        resolvePromise(promise, false, err);
      }
      // Do not return value or you will break the Promise spec.
    };
  }

  const once = function () {
    let wasCalled = false;
    return function wrapper(wrappedFunction) {
      return function () {
        if (wasCalled) {
          return;
        }
        wasCalled = true;
        wrappedFunction.apply(null, arguments);
      };
    };
  };
  const TYPE_ERROR = 'Promise resolved with itself';
  const CURRENT_TASK_TRACE_SYMBOL = __symbol__('currentTaskTrace');
  // Promise Resolution
  function resolvePromise(promise, state, value) {
    const onceWrapper = once();
    if (promise === value) {
      throw new TypeError(TYPE_ERROR);
    }
    if (promise[symbolState] === UNRESOLVED) {
      // should only get value.then once based on promise spec.
      let then = null;
      try {
        if (typeof value === 'object' || typeof value === 'function') {
          then = value && value.then;
        }
      } catch (err) {
        onceWrapper(() => {
          resolvePromise(promise, false, err);
        })();
        return promise;
      }
      // if (value instanceof ZoneAwarePromise) {
      if (state !== REJECTED && value instanceof ZoneAwarePromise && value.hasOwnProperty(symbolState) && value.hasOwnProperty(symbolValue) && value[symbolState] !== UNRESOLVED) {
        clearRejectedNoCatch(value);
        resolvePromise(promise, value[symbolState], value[symbolValue]);
      } else if (state !== REJECTED && typeof then === 'function') {
        try {
          then.call(value, onceWrapper(makeResolver(promise, state)), onceWrapper(makeResolver(promise, false)));
        } catch (err) {
          onceWrapper(() => {
            resolvePromise(promise, false, err);
          })();
        }
      } else {
        promise[symbolState] = state;
        const queue = promise[symbolValue];
        promise[symbolValue] = value;
        if (promise[symbolFinally] === symbolFinally) {
          // the promise is generated by Promise.prototype.finally
          if (state === RESOLVED) {
            // the state is resolved, should ignore the value
            // and use parent promise value
            promise[symbolState] = promise[symbolParentPromiseState];
            promise[symbolValue] = promise[symbolParentPromiseValue];
          }
        }
        // record task information in value when error occurs, so we can
        // do some additional work such as render longStackTrace
        if (state === REJECTED && value instanceof Error) {
          // check if longStackTraceZone is here
          const trace = Zone.currentTask && Zone.currentTask.data && Zone.currentTask.data[creationTrace];
          if (trace) {
            // only keep the long stack trace into error when in longStackTraceZone
            ObjectDefineProperty(value, CURRENT_TASK_TRACE_SYMBOL, {
              configurable: true,
              enumerable: false,
              writable: true,
              value: trace
            });
          }
        }
        for (let i = 0; i < queue.length;) {
          scheduleResolveOrReject(promise, queue[i++], queue[i++], queue[i++], queue[i++]);
        }
        if (queue.length == 0 && state == REJECTED) {
          promise[symbolState] = REJECTED_NO_CATCH;
          let uncaughtPromiseError = value;
          try {
            // Here we throws a new Error to print more readable error log
            // and if the value is not an error, zone.js builds an `Error`
            // Object here to attach the stack information.
            throw new Error('Uncaught (in promise): ' + readableObjectToString(value) + (value && value.stack ? '\n' + value.stack : ''));
          } catch (err) {
            uncaughtPromiseError = err;
          }
          if (isDisableWrappingUncaughtPromiseRejection) {
            // If disable wrapping uncaught promise reject
            // use the value instead of wrapping it.
            uncaughtPromiseError.throwOriginal = true;
          }
          uncaughtPromiseError.rejection = value;
          uncaughtPromiseError.promise = promise;
          uncaughtPromiseError.zone = Zone.current;
          uncaughtPromiseError.task = Zone.currentTask;
          _uncaughtPromiseErrors.push(uncaughtPromiseError);
          api.scheduleMicroTask(); // to make sure that it is running
        }
      }
    }
    // Resolving an already resolved promise is a noop.
    return promise;
  }
  const REJECTION_HANDLED_HANDLER = __symbol__('rejectionHandledHandler');
  function clearRejectedNoCatch(promise) {
    if (promise[symbolState] === REJECTED_NO_CATCH) {
      // if the promise is rejected no catch status
      // and queue.length > 0, means there is a error handler
      // here to handle the rejected promise, we should trigger
      // windows.rejectionhandled eventHandler or nodejs rejectionHandled
      // eventHandler
      try {
        const handler = Zone[REJECTION_HANDLED_HANDLER];
        if (handler && typeof handler === 'function') {
          handler.call(this, {
            rejection: promise[symbolValue],
            promise: promise
          });
        }
      } catch (err) {}
      promise[symbolState] = REJECTED;
      for (let i = 0; i < _uncaughtPromiseErrors.length; i++) {
        if (promise === _uncaughtPromiseErrors[i].promise) {
          _uncaughtPromiseErrors.splice(i, 1);
        }
      }
    }
  }
  function scheduleResolveOrReject(promise, zone, chainPromise, onFulfilled, onRejected) {
    clearRejectedNoCatch(promise);
    const promiseState = promise[symbolState];
    const delegate = promiseState ? typeof onFulfilled === 'function' ? onFulfilled : forwardResolution : typeof onRejected === 'function' ? onRejected : forwardRejection;
    zone.scheduleMicroTask(source, () => {
      try {
        const parentPromiseValue = promise[symbolValue];
        const isFinallyPromise = !!chainPromise && symbolFinally === chainPromise[symbolFinally];
        if (isFinallyPromise) {
          // if the promise is generated from finally call, keep parent promise's state and value
          chainPromise[symbolParentPromiseValue] = parentPromiseValue;
          chainPromise[symbolParentPromiseState] = promiseState;
        }
        // should not pass value to finally callback
        const value = zone.run(delegate, undefined, isFinallyPromise && delegate !== forwardRejection && delegate !== forwardResolution ? [] : [parentPromiseValue]);
        resolvePromise(chainPromise, true, value);
      } catch (error) {
        // if error occurs, should always return this error
        resolvePromise(chainPromise, false, error);
      }
    }, chainPromise);
  }
  const ZONE_AWARE_PROMISE_TO_STRING = 'function ZoneAwarePromise() { [native code] }';
  const noop = function () {};
  const AggregateError = global.AggregateError;
  class ZoneAwarePromise {
    static toString() {
      return ZONE_AWARE_PROMISE_TO_STRING;
    }
    static resolve(value) {
      return resolvePromise(new this(null), RESOLVED, value);
    }
    static reject(error) {
      return resolvePromise(new this(null), REJECTED, error);
    }
    static any(values) {
      if (!values || typeof values[Symbol.iterator] !== 'function') {
        return Promise.reject(new AggregateError([], 'All promises were rejected'));
      }
      const promises = [];
      let count = 0;
      try {
        for (let v of values) {
          count++;
          promises.push(ZoneAwarePromise.resolve(v));
        }
      } catch (err) {
        return Promise.reject(new AggregateError([], 'All promises were rejected'));
      }
      if (count === 0) {
        return Promise.reject(new AggregateError([], 'All promises were rejected'));
      }
      let finished = false;
      const errors = [];
      return new ZoneAwarePromise((resolve, reject) => {
        for (let i = 0; i < promises.length; i++) {
          promises[i].then(v => {
            if (finished) {
              return;
            }
            finished = true;
            resolve(v);
          }, err => {
            errors.push(err);
            count--;
            if (count === 0) {
              finished = true;
              reject(new AggregateError(errors, 'All promises were rejected'));
            }
          });
        }
      });
    }
    static race(values) {
      let resolve;
      let reject;
      let promise = new this((res, rej) => {
        resolve = res;
        reject = rej;
      });
      function onResolve(value) {
        resolve(value);
      }
      function onReject(error) {
        reject(error);
      }
      for (let value of values) {
        if (!isThenable(value)) {
          value = this.resolve(value);
        }
        value.then(onResolve, onReject);
      }
      return promise;
    }
    static all(values) {
      return ZoneAwarePromise.allWithCallback(values);
    }
    static allSettled(values) {
      const P = this && this.prototype instanceof ZoneAwarePromise ? this : ZoneAwarePromise;
      return P.allWithCallback(values, {
        thenCallback: value => ({
          status: 'fulfilled',
          value
        }),
        errorCallback: err => ({
          status: 'rejected',
          reason: err
        })
      });
    }
    static allWithCallback(values, callback) {
      let resolve;
      let reject;
      let promise = new this((res, rej) => {
        resolve = res;
        reject = rej;
      });
      // Start at 2 to prevent prematurely resolving if .then is called immediately.
      let unresolvedCount = 2;
      let valueIndex = 0;
      const resolvedValues = [];
      for (let value of values) {
        if (!isThenable(value)) {
          value = this.resolve(value);
        }
        const curValueIndex = valueIndex;
        try {
          value.then(value => {
            resolvedValues[curValueIndex] = callback ? callback.thenCallback(value) : value;
            unresolvedCount--;
            if (unresolvedCount === 0) {
              resolve(resolvedValues);
            }
          }, err => {
            if (!callback) {
              reject(err);
            } else {
              resolvedValues[curValueIndex] = callback.errorCallback(err);
              unresolvedCount--;
              if (unresolvedCount === 0) {
                resolve(resolvedValues);
              }
            }
          });
        } catch (thenErr) {
          reject(thenErr);
        }
        unresolvedCount++;
        valueIndex++;
      }
      // Make the unresolvedCount zero-based again.
      unresolvedCount -= 2;
      if (unresolvedCount === 0) {
        resolve(resolvedValues);
      }
      return promise;
    }
    constructor(executor) {
      const promise = this;
      if (!(promise instanceof ZoneAwarePromise)) {
        throw new Error('Must be an instanceof Promise.');
      }
      promise[symbolState] = UNRESOLVED;
      promise[symbolValue] = []; // queue;
      try {
        const onceWrapper = once();
        executor && executor(onceWrapper(makeResolver(promise, RESOLVED)), onceWrapper(makeResolver(promise, REJECTED)));
      } catch (error) {
        resolvePromise(promise, false, error);
      }
    }
    get [Symbol.toStringTag]() {
      return 'Promise';
    }
    get [Symbol.species]() {
      return ZoneAwarePromise;
    }
    then(onFulfilled, onRejected) {
      var _a;
      // We must read `Symbol.species` safely because `this` may be anything. For instance, `this`
      // may be an object without a prototype (created through `Object.create(null)`); thus
      // `this.constructor` will be undefined. One of the use cases is SystemJS creating
      // prototype-less objects (modules) via `Object.create(null)`. The SystemJS creates an empty
      // object and copies promise properties into that object (within the `getOrCreateLoad`
      // function). The zone.js then checks if the resolved value has the `then` method and invokes
      // it with the `value` context. Otherwise, this will throw an error: `TypeError: Cannot read
      // properties of undefined (reading 'Symbol(Symbol.species)')`.
      let C = (_a = this.constructor) === null || _a === void 0 ? void 0 : _a[Symbol.species];
      if (!C || typeof C !== 'function') {
        C = this.constructor || ZoneAwarePromise;
      }
      const chainPromise = new C(noop);
      const zone = Zone.current;
      if (this[symbolState] == UNRESOLVED) {
        this[symbolValue].push(zone, chainPromise, onFulfilled, onRejected);
      } else {
        scheduleResolveOrReject(this, zone, chainPromise, onFulfilled, onRejected);
      }
      return chainPromise;
    }
    catch(onRejected) {
      return this.then(null, onRejected);
    }
    finally(onFinally) {
      var _a;
      // See comment on the call to `then` about why thee `Symbol.species` is safely accessed.
      let C = (_a = this.constructor) === null || _a === void 0 ? void 0 : _a[Symbol.species];
      if (!C || typeof C !== 'function') {
        C = ZoneAwarePromise;
      }
      const chainPromise = new C(noop);
      chainPromise[symbolFinally] = symbolFinally;
      const zone = Zone.current;
      if (this[symbolState] == UNRESOLVED) {
        this[symbolValue].push(zone, chainPromise, onFinally, onFinally);
      } else {
        scheduleResolveOrReject(this, zone, chainPromise, onFinally, onFinally);
      }
      return chainPromise;
    }
  }
  // Protect against aggressive optimizers dropping seemingly unused properties.
  // E.g. Closure Compiler in advanced mode.
  ZoneAwarePromise['resolve'] = ZoneAwarePromise.resolve;
  ZoneAwarePromise['reject'] = ZoneAwarePromise.reject;
  ZoneAwarePromise['race'] = ZoneAwarePromise.race;
  ZoneAwarePromise['all'] = ZoneAwarePromise.all;
  const NativePromise = global[symbolPromise] = global['Promise'];
  global['Promise'] = ZoneAwarePromise;
  const symbolThenPatched = __symbol__('thenPatched');
  function patchThen(Ctor) {
    const proto = Ctor.prototype;
    const prop = ObjectGetOwnPropertyDescriptor(proto, 'then');
    if (prop && (prop.writable === false || !prop.configurable)) {
      // check Ctor.prototype.then propertyDescriptor is writable or not
      // in meteor env, writable is false, we should ignore such case
      return;
    }
    const originalThen = proto.then;
    // Keep a reference to the original method.
    proto[symbolThen] = originalThen;
    Ctor.prototype.then = function (onResolve, onReject) {
      const wrapped = new ZoneAwarePromise((resolve, reject) => {
        originalThen.call(this, resolve, reject);
      });
      return wrapped.then(onResolve, onReject);
    };
    Ctor[symbolThenPatched] = true;
  }
  api.patchThen = patchThen;
  function zoneify(fn) {
    return function (self, args) {
      let resultPromise = fn.apply(self, args);
      if (resultPromise instanceof ZoneAwarePromise) {
        return resultPromise;
      }
      let ctor = resultPromise.constructor;
      if (!ctor[symbolThenPatched]) {
        patchThen(ctor);
      }
      return resultPromise;
    };
  }
  if (NativePromise) {
    patchThen(NativePromise);
    patchMethod(global, 'fetch', delegate => zoneify(delegate));
  }
  // This is not part of public API, but it is useful for tests, so we expose it.
  Promise[Zone.__symbol__('uncaughtPromiseErrors')] = _uncaughtPromiseErrors;
  return ZoneAwarePromise;
});

/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
// override Function.prototype.toString to make zone.js patched function
// look like native function
Zone.__load_patch('toString', global => {
  // patch Func.prototype.toString to let them look like native
  const originalFunctionToString = Function.prototype.toString;
  const ORIGINAL_DELEGATE_SYMBOL = zoneSymbol('OriginalDelegate');
  const PROMISE_SYMBOL = zoneSymbol('Promise');
  const ERROR_SYMBOL = zoneSymbol('Error');
  const newFunctionToString = function toString() {
    if (typeof this === 'function') {
      const originalDelegate = this[ORIGINAL_DELEGATE_SYMBOL];
      if (originalDelegate) {
        if (typeof originalDelegate === 'function') {
          return originalFunctionToString.call(originalDelegate);
        } else {
          return Object.prototype.toString.call(originalDelegate);
        }
      }
      if (this === Promise) {
        const nativePromise = global[PROMISE_SYMBOL];
        if (nativePromise) {
          return originalFunctionToString.call(nativePromise);
        }
      }
      if (this === Error) {
        const nativeError = global[ERROR_SYMBOL];
        if (nativeError) {
          return originalFunctionToString.call(nativeError);
        }
      }
    }
    return originalFunctionToString.call(this);
  };
  newFunctionToString[ORIGINAL_DELEGATE_SYMBOL] = originalFunctionToString;
  Function.prototype.toString = newFunctionToString;
  // patch Object.prototype.toString to let them look like native
  const originalObjectToString = Object.prototype.toString;
  const PROMISE_OBJECT_TO_STRING = '[object Promise]';
  Object.prototype.toString = function () {
    if (typeof Promise === 'function' && this instanceof Promise) {
      return PROMISE_OBJECT_TO_STRING;
    }
    return originalObjectToString.call(this);
  };
});

/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
let passiveSupported = false;
if (typeof window !== 'undefined') {
  try {
    const options = Object.defineProperty({}, 'passive', {
      get: function () {
        passiveSupported = true;
      }
    });
    // Note: We pass the `options` object as the event handler too. This is not compatible with the
    // signature of `addEventListener` or `removeEventListener` but enables us to remove the handler
    // without an actual handler.
    window.addEventListener('test', options, options);
    window.removeEventListener('test', options, options);
  } catch (err) {
    passiveSupported = false;
  }
}
// an identifier to tell ZoneTask do not create a new invoke closure
const OPTIMIZED_ZONE_EVENT_TASK_DATA = {
  useG: true
};
const zoneSymbolEventNames = {};
const globalSources = {};
const EVENT_NAME_SYMBOL_REGX = new RegExp('^' + ZONE_SYMBOL_PREFIX + '(\\w+)(true|false)$');
const IMMEDIATE_PROPAGATION_SYMBOL = zoneSymbol('propagationStopped');
function prepareEventNames(eventName, eventNameToString) {
  const falseEventName = (eventNameToString ? eventNameToString(eventName) : eventName) + FALSE_STR;
  const trueEventName = (eventNameToString ? eventNameToString(eventName) : eventName) + TRUE_STR;
  const symbol = ZONE_SYMBOL_PREFIX + falseEventName;
  const symbolCapture = ZONE_SYMBOL_PREFIX + trueEventName;
  zoneSymbolEventNames[eventName] = {};
  zoneSymbolEventNames[eventName][FALSE_STR] = symbol;
  zoneSymbolEventNames[eventName][TRUE_STR] = symbolCapture;
}
function patchEventTarget(_global, api, apis, patchOptions) {
  const ADD_EVENT_LISTENER = patchOptions && patchOptions.add || ADD_EVENT_LISTENER_STR;
  const REMOVE_EVENT_LISTENER = patchOptions && patchOptions.rm || REMOVE_EVENT_LISTENER_STR;
  const LISTENERS_EVENT_LISTENER = patchOptions && patchOptions.listeners || 'eventListeners';
  const REMOVE_ALL_LISTENERS_EVENT_LISTENER = patchOptions && patchOptions.rmAll || 'removeAllListeners';
  const zoneSymbolAddEventListener = zoneSymbol(ADD_EVENT_LISTENER);
  const ADD_EVENT_LISTENER_SOURCE = '.' + ADD_EVENT_LISTENER + ':';
  const PREPEND_EVENT_LISTENER = 'prependListener';
  const PREPEND_EVENT_LISTENER_SOURCE = '.' + PREPEND_EVENT_LISTENER + ':';
  const invokeTask = function (task, target, event) {
    // for better performance, check isRemoved which is set
    // by removeEventListener
    if (task.isRemoved) {
      return;
    }
    const delegate = task.callback;
    if (typeof delegate === 'object' && delegate.handleEvent) {
      // create the bind version of handleEvent when invoke
      task.callback = event => delegate.handleEvent(event);
      task.originalDelegate = delegate;
    }
    // invoke static task.invoke
    // need to try/catch error here, otherwise, the error in one event listener
    // will break the executions of the other event listeners. Also error will
    // not remove the event listener when `once` options is true.
    let error;
    try {
      task.invoke(task, target, [event]);
    } catch (err) {
      error = err;
    }
    const options = task.options;
    if (options && typeof options === 'object' && options.once) {
      // if options.once is true, after invoke once remove listener here
      // only browser need to do this, nodejs eventEmitter will cal removeListener
      // inside EventEmitter.once
      const delegate = task.originalDelegate ? task.originalDelegate : task.callback;
      target[REMOVE_EVENT_LISTENER].call(target, event.type, delegate, options);
    }
    return error;
  };
  function globalCallback(context, event, isCapture) {
    // https://github.com/angular/zone.js/issues/911, in IE, sometimes
    // event will be undefined, so we need to use window.event
    event = event || _global.event;
    if (!event) {
      return;
    }
    // event.target is needed for Samsung TV and SourceBuffer
    // || global is needed https://github.com/angular/zone.js/issues/190
    const target = context || event.target || _global;
    const tasks = target[zoneSymbolEventNames[event.type][isCapture ? TRUE_STR : FALSE_STR]];
    if (tasks) {
      const errors = [];
      // invoke all tasks which attached to current target with given event.type and capture = false
      // for performance concern, if task.length === 1, just invoke
      if (tasks.length === 1) {
        const err = invokeTask(tasks[0], target, event);
        err && errors.push(err);
      } else {
        // https://github.com/angular/zone.js/issues/836
        // copy the tasks array before invoke, to avoid
        // the callback will remove itself or other listener
        const copyTasks = tasks.slice();
        for (let i = 0; i < copyTasks.length; i++) {
          if (event && event[IMMEDIATE_PROPAGATION_SYMBOL] === true) {
            break;
          }
          const err = invokeTask(copyTasks[i], target, event);
          err && errors.push(err);
        }
      }
      // Since there is only one error, we don't need to schedule microTask
      // to throw the error.
      if (errors.length === 1) {
        throw errors[0];
      } else {
        for (let i = 0; i < errors.length; i++) {
          const err = errors[i];
          api.nativeScheduleMicroTask(() => {
            throw err;
          });
        }
      }
    }
  }
  // global shared zoneAwareCallback to handle all event callback with capture = false
  const globalZoneAwareCallback = function (event) {
    return globalCallback(this, event, false);
  };
  // global shared zoneAwareCallback to handle all event callback with capture = true
  const globalZoneAwareCaptureCallback = function (event) {
    return globalCallback(this, event, true);
  };
  function patchEventTargetMethods(obj, patchOptions) {
    if (!obj) {
      return false;
    }
    let useGlobalCallback = true;
    if (patchOptions && patchOptions.useG !== undefined) {
      useGlobalCallback = patchOptions.useG;
    }
    const validateHandler = patchOptions && patchOptions.vh;
    let checkDuplicate = true;
    if (patchOptions && patchOptions.chkDup !== undefined) {
      checkDuplicate = patchOptions.chkDup;
    }
    let returnTarget = false;
    if (patchOptions && patchOptions.rt !== undefined) {
      returnTarget = patchOptions.rt;
    }
    let proto = obj;
    while (proto && !proto.hasOwnProperty(ADD_EVENT_LISTENER)) {
      proto = ObjectGetPrototypeOf(proto);
    }
    if (!proto && obj[ADD_EVENT_LISTENER]) {
      // somehow we did not find it, but we can see it. This happens on IE for Window properties.
      proto = obj;
    }
    if (!proto) {
      return false;
    }
    if (proto[zoneSymbolAddEventListener]) {
      return false;
    }
    const eventNameToString = patchOptions && patchOptions.eventNameToString;
    // a shared global taskData to pass data for scheduleEventTask
    // so we do not need to create a new object just for pass some data
    const taskData = {};
    const nativeAddEventListener = proto[zoneSymbolAddEventListener] = proto[ADD_EVENT_LISTENER];
    const nativeRemoveEventListener = proto[zoneSymbol(REMOVE_EVENT_LISTENER)] = proto[REMOVE_EVENT_LISTENER];
    const nativeListeners = proto[zoneSymbol(LISTENERS_EVENT_LISTENER)] = proto[LISTENERS_EVENT_LISTENER];
    const nativeRemoveAllListeners = proto[zoneSymbol(REMOVE_ALL_LISTENERS_EVENT_LISTENER)] = proto[REMOVE_ALL_LISTENERS_EVENT_LISTENER];
    let nativePrependEventListener;
    if (patchOptions && patchOptions.prepend) {
      nativePrependEventListener = proto[zoneSymbol(patchOptions.prepend)] = proto[patchOptions.prepend];
    }
    /**
     * This util function will build an option object with passive option
     * to handle all possible input from the user.
     */
    function buildEventListenerOptions(options, passive) {
      if (!passiveSupported && typeof options === 'object' && options) {
        // doesn't support passive but user want to pass an object as options.
        // this will not work on some old browser, so we just pass a boolean
        // as useCapture parameter
        return !!options.capture;
      }
      if (!passiveSupported || !passive) {
        return options;
      }
      if (typeof options === 'boolean') {
        return {
          capture: options,
          passive: true
        };
      }
      if (!options) {
        return {
          passive: true
        };
      }
      if (typeof options === 'object' && options.passive !== false) {
        return Object.assign(Object.assign({}, options), {
          passive: true
        });
      }
      return options;
    }
    const customScheduleGlobal = function (task) {
      // if there is already a task for the eventName + capture,
      // just return, because we use the shared globalZoneAwareCallback here.
      if (taskData.isExisting) {
        return;
      }
      return nativeAddEventListener.call(taskData.target, taskData.eventName, taskData.capture ? globalZoneAwareCaptureCallback : globalZoneAwareCallback, taskData.options);
    };
    const customCancelGlobal = function (task) {
      // if task is not marked as isRemoved, this call is directly
      // from Zone.prototype.cancelTask, we should remove the task
      // from tasksList of target first
      if (!task.isRemoved) {
        const symbolEventNames = zoneSymbolEventNames[task.eventName];
        let symbolEventName;
        if (symbolEventNames) {
          symbolEventName = symbolEventNames[task.capture ? TRUE_STR : FALSE_STR];
        }
        const existingTasks = symbolEventName && task.target[symbolEventName];
        if (existingTasks) {
          for (let i = 0; i < existingTasks.length; i++) {
            const existingTask = existingTasks[i];
            if (existingTask === task) {
              existingTasks.splice(i, 1);
              // set isRemoved to data for faster invokeTask check
              task.isRemoved = true;
              if (existingTasks.length === 0) {
                // all tasks for the eventName + capture have gone,
                // remove globalZoneAwareCallback and remove the task cache from target
                task.allRemoved = true;
                task.target[symbolEventName] = null;
              }
              break;
            }
          }
        }
      }
      // if all tasks for the eventName + capture have gone,
      // we will really remove the global event callback,
      // if not, return
      if (!task.allRemoved) {
        return;
      }
      return nativeRemoveEventListener.call(task.target, task.eventName, task.capture ? globalZoneAwareCaptureCallback : globalZoneAwareCallback, task.options);
    };
    const customScheduleNonGlobal = function (task) {
      return nativeAddEventListener.call(taskData.target, taskData.eventName, task.invoke, taskData.options);
    };
    const customSchedulePrepend = function (task) {
      return nativePrependEventListener.call(taskData.target, taskData.eventName, task.invoke, taskData.options);
    };
    const customCancelNonGlobal = function (task) {
      return nativeRemoveEventListener.call(task.target, task.eventName, task.invoke, task.options);
    };
    const customSchedule = useGlobalCallback ? customScheduleGlobal : customScheduleNonGlobal;
    const customCancel = useGlobalCallback ? customCancelGlobal : customCancelNonGlobal;
    const compareTaskCallbackVsDelegate = function (task, delegate) {
      const typeOfDelegate = typeof delegate;
      return typeOfDelegate === 'function' && task.callback === delegate || typeOfDelegate === 'object' && task.originalDelegate === delegate;
    };
    const compare = patchOptions && patchOptions.diff ? patchOptions.diff : compareTaskCallbackVsDelegate;
    const unpatchedEvents = Zone[zoneSymbol('UNPATCHED_EVENTS')];
    const passiveEvents = _global[zoneSymbol('PASSIVE_EVENTS')];
    const makeAddListener = function (nativeListener, addSource, customScheduleFn, customCancelFn, returnTarget = false, prepend = false) {
      return function () {
        const target = this || _global;
        let eventName = arguments[0];
        if (patchOptions && patchOptions.transferEventName) {
          eventName = patchOptions.transferEventName(eventName);
        }
        let delegate = arguments[1];
        if (!delegate) {
          return nativeListener.apply(this, arguments);
        }
        if (isNode && eventName === 'uncaughtException') {
          // don't patch uncaughtException of nodejs to prevent endless loop
          return nativeListener.apply(this, arguments);
        }
        // don't create the bind delegate function for handleEvent
        // case here to improve addEventListener performance
        // we will create the bind delegate when invoke
        let isHandleEvent = false;
        if (typeof delegate !== 'function') {
          if (!delegate.handleEvent) {
            return nativeListener.apply(this, arguments);
          }
          isHandleEvent = true;
        }
        if (validateHandler && !validateHandler(nativeListener, delegate, target, arguments)) {
          return;
        }
        const passive = passiveSupported && !!passiveEvents && passiveEvents.indexOf(eventName) !== -1;
        const options = buildEventListenerOptions(arguments[2], passive);
        if (unpatchedEvents) {
          // check unpatched list
          for (let i = 0; i < unpatchedEvents.length; i++) {
            if (eventName === unpatchedEvents[i]) {
              if (passive) {
                return nativeListener.call(target, eventName, delegate, options);
              } else {
                return nativeListener.apply(this, arguments);
              }
            }
          }
        }
        const capture = !options ? false : typeof options === 'boolean' ? true : options.capture;
        const once = options && typeof options === 'object' ? options.once : false;
        const zone = Zone.current;
        let symbolEventNames = zoneSymbolEventNames[eventName];
        if (!symbolEventNames) {
          prepareEventNames(eventName, eventNameToString);
          symbolEventNames = zoneSymbolEventNames[eventName];
        }
        const symbolEventName = symbolEventNames[capture ? TRUE_STR : FALSE_STR];
        let existingTasks = target[symbolEventName];
        let isExisting = false;
        if (existingTasks) {
          // already have task registered
          isExisting = true;
          if (checkDuplicate) {
            for (let i = 0; i < existingTasks.length; i++) {
              if (compare(existingTasks[i], delegate)) {
                // same callback, same capture, same event name, just return
                return;
              }
            }
          }
        } else {
          existingTasks = target[symbolEventName] = [];
        }
        let source;
        const constructorName = target.constructor['name'];
        const targetSource = globalSources[constructorName];
        if (targetSource) {
          source = targetSource[eventName];
        }
        if (!source) {
          source = constructorName + addSource + (eventNameToString ? eventNameToString(eventName) : eventName);
        }
        // do not create a new object as task.data to pass those things
        // just use the global shared one
        taskData.options = options;
        if (once) {
          // if addEventListener with once options, we don't pass it to
          // native addEventListener, instead we keep the once setting
          // and handle ourselves.
          taskData.options.once = false;
        }
        taskData.target = target;
        taskData.capture = capture;
        taskData.eventName = eventName;
        taskData.isExisting = isExisting;
        const data = useGlobalCallback ? OPTIMIZED_ZONE_EVENT_TASK_DATA : undefined;
        // keep taskData into data to allow onScheduleEventTask to access the task information
        if (data) {
          data.taskData = taskData;
        }
        const task = zone.scheduleEventTask(source, delegate, data, customScheduleFn, customCancelFn);
        // should clear taskData.target to avoid memory leak
        // issue, https://github.com/angular/angular/issues/20442
        taskData.target = null;
        // need to clear up taskData because it is a global object
        if (data) {
          data.taskData = null;
        }
        // have to save those information to task in case
        // application may call task.zone.cancelTask() directly
        if (once) {
          options.once = true;
        }
        if (!(!passiveSupported && typeof task.options === 'boolean')) {
          // if not support passive, and we pass an option object
          // to addEventListener, we should save the options to task
          task.options = options;
        }
        task.target = target;
        task.capture = capture;
        task.eventName = eventName;
        if (isHandleEvent) {
          // save original delegate for compare to check duplicate
          task.originalDelegate = delegate;
        }
        if (!prepend) {
          existingTasks.push(task);
        } else {
          existingTasks.unshift(task);
        }
        if (returnTarget) {
          return target;
        }
      };
    };
    proto[ADD_EVENT_LISTENER] = makeAddListener(nativeAddEventListener, ADD_EVENT_LISTENER_SOURCE, customSchedule, customCancel, returnTarget);
    if (nativePrependEventListener) {
      proto[PREPEND_EVENT_LISTENER] = makeAddListener(nativePrependEventListener, PREPEND_EVENT_LISTENER_SOURCE, customSchedulePrepend, customCancel, returnTarget, true);
    }
    proto[REMOVE_EVENT_LISTENER] = function () {
      const target = this || _global;
      let eventName = arguments[0];
      if (patchOptions && patchOptions.transferEventName) {
        eventName = patchOptions.transferEventName(eventName);
      }
      const options = arguments[2];
      const capture = !options ? false : typeof options === 'boolean' ? true : options.capture;
      const delegate = arguments[1];
      if (!delegate) {
        return nativeRemoveEventListener.apply(this, arguments);
      }
      if (validateHandler && !validateHandler(nativeRemoveEventListener, delegate, target, arguments)) {
        return;
      }
      const symbolEventNames = zoneSymbolEventNames[eventName];
      let symbolEventName;
      if (symbolEventNames) {
        symbolEventName = symbolEventNames[capture ? TRUE_STR : FALSE_STR];
      }
      const existingTasks = symbolEventName && target[symbolEventName];
      if (existingTasks) {
        for (let i = 0; i < existingTasks.length; i++) {
          const existingTask = existingTasks[i];
          if (compare(existingTask, delegate)) {
            existingTasks.splice(i, 1);
            // set isRemoved to data for faster invokeTask check
            existingTask.isRemoved = true;
            if (existingTasks.length === 0) {
              // all tasks for the eventName + capture have gone,
              // remove globalZoneAwareCallback and remove the task cache from target
              existingTask.allRemoved = true;
              target[symbolEventName] = null;
              // in the target, we have an event listener which is added by on_property
              // such as target.onclick = function() {}, so we need to clear this internal
              // property too if all delegates all removed
              if (typeof eventName === 'string') {
                const onPropertySymbol = ZONE_SYMBOL_PREFIX + 'ON_PROPERTY' + eventName;
                target[onPropertySymbol] = null;
              }
            }
            existingTask.zone.cancelTask(existingTask);
            if (returnTarget) {
              return target;
            }
            return;
          }
        }
      }
      // issue 930, didn't find the event name or callback
      // from zone kept existingTasks, the callback maybe
      // added outside of zone, we need to call native removeEventListener
      // to try to remove it.
      return nativeRemoveEventListener.apply(this, arguments);
    };
    proto[LISTENERS_EVENT_LISTENER] = function () {
      const target = this || _global;
      let eventName = arguments[0];
      if (patchOptions && patchOptions.transferEventName) {
        eventName = patchOptions.transferEventName(eventName);
      }
      const listeners = [];
      const tasks = findEventTasks(target, eventNameToString ? eventNameToString(eventName) : eventName);
      for (let i = 0; i < tasks.length; i++) {
        const task = tasks[i];
        let delegate = task.originalDelegate ? task.originalDelegate : task.callback;
        listeners.push(delegate);
      }
      return listeners;
    };
    proto[REMOVE_ALL_LISTENERS_EVENT_LISTENER] = function () {
      const target = this || _global;
      let eventName = arguments[0];
      if (!eventName) {
        const keys = Object.keys(target);
        for (let i = 0; i < keys.length; i++) {
          const prop = keys[i];
          const match = EVENT_NAME_SYMBOL_REGX.exec(prop);
          let evtName = match && match[1];
          // in nodejs EventEmitter, removeListener event is
          // used for monitoring the removeListener call,
          // so just keep removeListener eventListener until
          // all other eventListeners are removed
          if (evtName && evtName !== 'removeListener') {
            this[REMOVE_ALL_LISTENERS_EVENT_LISTENER].call(this, evtName);
          }
        }
        // remove removeListener listener finally
        this[REMOVE_ALL_LISTENERS_EVENT_LISTENER].call(this, 'removeListener');
      } else {
        if (patchOptions && patchOptions.transferEventName) {
          eventName = patchOptions.transferEventName(eventName);
        }
        const symbolEventNames = zoneSymbolEventNames[eventName];
        if (symbolEventNames) {
          const symbolEventName = symbolEventNames[FALSE_STR];
          const symbolCaptureEventName = symbolEventNames[TRUE_STR];
          const tasks = target[symbolEventName];
          const captureTasks = target[symbolCaptureEventName];
          if (tasks) {
            const removeTasks = tasks.slice();
            for (let i = 0; i < removeTasks.length; i++) {
              const task = removeTasks[i];
              let delegate = task.originalDelegate ? task.originalDelegate : task.callback;
              this[REMOVE_EVENT_LISTENER].call(this, eventName, delegate, task.options);
            }
          }
          if (captureTasks) {
            const removeTasks = captureTasks.slice();
            for (let i = 0; i < removeTasks.length; i++) {
              const task = removeTasks[i];
              let delegate = task.originalDelegate ? task.originalDelegate : task.callback;
              this[REMOVE_EVENT_LISTENER].call(this, eventName, delegate, task.options);
            }
          }
        }
      }
      if (returnTarget) {
        return this;
      }
    };
    // for native toString patch
    attachOriginToPatched(proto[ADD_EVENT_LISTENER], nativeAddEventListener);
    attachOriginToPatched(proto[REMOVE_EVENT_LISTENER], nativeRemoveEventListener);
    if (nativeRemoveAllListeners) {
      attachOriginToPatched(proto[REMOVE_ALL_LISTENERS_EVENT_LISTENER], nativeRemoveAllListeners);
    }
    if (nativeListeners) {
      attachOriginToPatched(proto[LISTENERS_EVENT_LISTENER], nativeListeners);
    }
    return true;
  }
  let results = [];
  for (let i = 0; i < apis.length; i++) {
    results[i] = patchEventTargetMethods(apis[i], patchOptions);
  }
  return results;
}
function findEventTasks(target, eventName) {
  if (!eventName) {
    const foundTasks = [];
    for (let prop in target) {
      const match = EVENT_NAME_SYMBOL_REGX.exec(prop);
      let evtName = match && match[1];
      if (evtName && (!eventName || evtName === eventName)) {
        const tasks = target[prop];
        if (tasks) {
          for (let i = 0; i < tasks.length; i++) {
            foundTasks.push(tasks[i]);
          }
        }
      }
    }
    return foundTasks;
  }
  let symbolEventName = zoneSymbolEventNames[eventName];
  if (!symbolEventName) {
    prepareEventNames(eventName);
    symbolEventName = zoneSymbolEventNames[eventName];
  }
  const captureFalseTasks = target[symbolEventName[FALSE_STR]];
  const captureTrueTasks = target[symbolEventName[TRUE_STR]];
  if (!captureFalseTasks) {
    return captureTrueTasks ? captureTrueTasks.slice() : [];
  } else {
    return captureTrueTasks ? captureFalseTasks.concat(captureTrueTasks) : captureFalseTasks.slice();
  }
}
function patchEventPrototype(global, api) {
  const Event = global['Event'];
  if (Event && Event.prototype) {
    api.patchMethod(Event.prototype, 'stopImmediatePropagation', delegate => function (self, args) {
      self[IMMEDIATE_PROPAGATION_SYMBOL] = true;
      // we need to call the native stopImmediatePropagation
      // in case in some hybrid application, some part of
      // application will be controlled by zone, some are not
      delegate && delegate.apply(self, args);
    });
  }
}

/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
function patchCallbacks(api, target, targetName, method, callbacks) {
  const symbol = Zone.__symbol__(method);
  if (target[symbol]) {
    return;
  }
  const nativeDelegate = target[symbol] = target[method];
  target[method] = function (name, opts, options) {
    if (opts && opts.prototype) {
      callbacks.forEach(function (callback) {
        const source = `${targetName}.${method}::` + callback;
        const prototype = opts.prototype;
        // Note: the `patchCallbacks` is used for patching the `document.registerElement` and
        // `customElements.define`. We explicitly wrap the patching code into try-catch since
        // callbacks may be already patched by other web components frameworks (e.g. LWC), and they
        // make those properties non-writable. This means that patching callback will throw an error
        // `cannot assign to read-only property`. See this code as an example:
        // https://github.com/salesforce/lwc/blob/master/packages/@lwc/engine-core/src/framework/base-bridge-element.ts#L180-L186
        // We don't want to stop the application rendering if we couldn't patch some
        // callback, e.g. `attributeChangedCallback`.
        try {
          if (prototype.hasOwnProperty(callback)) {
            const descriptor = api.ObjectGetOwnPropertyDescriptor(prototype, callback);
            if (descriptor && descriptor.value) {
              descriptor.value = api.wrapWithCurrentZone(descriptor.value, source);
              api._redefineProperty(opts.prototype, callback, descriptor);
            } else if (prototype[callback]) {
              prototype[callback] = api.wrapWithCurrentZone(prototype[callback], source);
            }
          } else if (prototype[callback]) {
            prototype[callback] = api.wrapWithCurrentZone(prototype[callback], source);
          }
        } catch (_a) {
          // Note: we leave the catch block empty since there's no way to handle the error related
          // to non-writable property.
        }
      });
    }
    return nativeDelegate.call(target, name, opts, options);
  };
  api.attachOriginToPatched(target[method], nativeDelegate);
}

/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
function filterProperties(target, onProperties, ignoreProperties) {
  if (!ignoreProperties || ignoreProperties.length === 0) {
    return onProperties;
  }
  const tip = ignoreProperties.filter(ip => ip.target === target);
  if (!tip || tip.length === 0) {
    return onProperties;
  }
  const targetIgnoreProperties = tip[0].ignoreProperties;
  return onProperties.filter(op => targetIgnoreProperties.indexOf(op) === -1);
}
function patchFilteredProperties(target, onProperties, ignoreProperties, prototype) {
  // check whether target is available, sometimes target will be undefined
  // because different browser or some 3rd party plugin.
  if (!target) {
    return;
  }
  const filteredProperties = filterProperties(target, onProperties, ignoreProperties);
  patchOnProperties(target, filteredProperties, prototype);
}
/**
 * Get all event name properties which the event name startsWith `on`
 * from the target object itself, inherited properties are not considered.
 */
function getOnEventNames(target) {
  return Object.getOwnPropertyNames(target).filter(name => name.startsWith('on') && name.length > 2).map(name => name.substring(2));
}
function propertyDescriptorPatch(api, _global) {
  if (isNode && !isMix) {
    return;
  }
  if (Zone[api.symbol('patchEvents')]) {
    // events are already been patched by legacy patch.
    return;
  }
  const ignoreProperties = _global['__Zone_ignore_on_properties'];
  // for browsers that we can patch the descriptor:  Chrome & Firefox
  let patchTargets = [];
  if (isBrowser) {
    const internalWindow = window;
    patchTargets = patchTargets.concat(['Document', 'SVGElement', 'Element', 'HTMLElement', 'HTMLBodyElement', 'HTMLMediaElement', 'HTMLFrameSetElement', 'HTMLFrameElement', 'HTMLIFrameElement', 'HTMLMarqueeElement', 'Worker']);
    const ignoreErrorProperties = isIE() ? [{
      target: internalWindow,
      ignoreProperties: ['error']
    }] : [];
    // in IE/Edge, onProp not exist in window object, but in WindowPrototype
    // so we need to pass WindowPrototype to check onProp exist or not
    patchFilteredProperties(internalWindow, getOnEventNames(internalWindow), ignoreProperties ? ignoreProperties.concat(ignoreErrorProperties) : ignoreProperties, ObjectGetPrototypeOf(internalWindow));
  }
  patchTargets = patchTargets.concat(['XMLHttpRequest', 'XMLHttpRequestEventTarget', 'IDBIndex', 'IDBRequest', 'IDBOpenDBRequest', 'IDBDatabase', 'IDBTransaction', 'IDBCursor', 'WebSocket']);
  for (let i = 0; i < patchTargets.length; i++) {
    const target = _global[patchTargets[i]];
    target && target.prototype && patchFilteredProperties(target.prototype, getOnEventNames(target.prototype), ignoreProperties);
  }
}

/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
Zone.__load_patch('util', (global, Zone, api) => {
  // Collect native event names by looking at properties
  // on the global namespace, e.g. 'onclick'.
  const eventNames = getOnEventNames(global);
  api.patchOnProperties = patchOnProperties;
  api.patchMethod = patchMethod;
  api.bindArguments = bindArguments;
  api.patchMacroTask = patchMacroTask;
  // In earlier version of zone.js (<0.9.0), we use env name `__zone_symbol__BLACK_LISTED_EVENTS` to
  // define which events will not be patched by `Zone.js`.
  // In newer version (>=0.9.0), we change the env name to `__zone_symbol__UNPATCHED_EVENTS` to keep
  // the name consistent with angular repo.
  // The  `__zone_symbol__BLACK_LISTED_EVENTS` is deprecated, but it is still be supported for
  // backwards compatibility.
  const SYMBOL_BLACK_LISTED_EVENTS = Zone.__symbol__('BLACK_LISTED_EVENTS');
  const SYMBOL_UNPATCHED_EVENTS = Zone.__symbol__('UNPATCHED_EVENTS');
  if (global[SYMBOL_UNPATCHED_EVENTS]) {
    global[SYMBOL_BLACK_LISTED_EVENTS] = global[SYMBOL_UNPATCHED_EVENTS];
  }
  if (global[SYMBOL_BLACK_LISTED_EVENTS]) {
    Zone[SYMBOL_BLACK_LISTED_EVENTS] = Zone[SYMBOL_UNPATCHED_EVENTS] = global[SYMBOL_BLACK_LISTED_EVENTS];
  }
  api.patchEventPrototype = patchEventPrototype;
  api.patchEventTarget = patchEventTarget;
  api.isIEOrEdge = isIEOrEdge;
  api.ObjectDefineProperty = ObjectDefineProperty;
  api.ObjectGetOwnPropertyDescriptor = ObjectGetOwnPropertyDescriptor;
  api.ObjectCreate = ObjectCreate;
  api.ArraySlice = ArraySlice;
  api.patchClass = patchClass;
  api.wrapWithCurrentZone = wrapWithCurrentZone;
  api.filterProperties = filterProperties;
  api.attachOriginToPatched = attachOriginToPatched;
  api._redefineProperty = Object.defineProperty;
  api.patchCallbacks = patchCallbacks;
  api.getGlobalObjects = () => ({
    globalSources,
    zoneSymbolEventNames,
    eventNames,
    isBrowser,
    isMix,
    isNode,
    TRUE_STR,
    FALSE_STR,
    ZONE_SYMBOL_PREFIX,
    ADD_EVENT_LISTENER_STR,
    REMOVE_EVENT_LISTENER_STR
  });
});

/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
const taskSymbol = zoneSymbol('zoneTask');
function patchTimer(window, setName, cancelName, nameSuffix) {
  let setNative = null;
  let clearNative = null;
  setName += nameSuffix;
  cancelName += nameSuffix;
  const tasksByHandleId = {};
  function scheduleTask(task) {
    const data = task.data;
    data.args[0] = function () {
      return task.invoke.apply(this, arguments);
    };
    data.handleId = setNative.apply(window, data.args);
    return task;
  }
  function clearTask(task) {
    return clearNative.call(window, task.data.handleId);
  }
  setNative = patchMethod(window, setName, delegate => function (self, args) {
    if (typeof args[0] === 'function') {
      const options = {
        isPeriodic: nameSuffix === 'Interval',
        delay: nameSuffix === 'Timeout' || nameSuffix === 'Interval' ? args[1] || 0 : undefined,
        args: args
      };
      const callback = args[0];
      args[0] = function timer() {
        try {
          return callback.apply(this, arguments);
        } finally {
          // issue-934, task will be cancelled
          // even it is a periodic task such as
          // setInterval
          // https://github.com/angular/angular/issues/40387
          // Cleanup tasksByHandleId should be handled before scheduleTask
          // Since some zoneSpec may intercept and doesn't trigger
          // scheduleFn(scheduleTask) provided here.
          if (!options.isPeriodic) {
            if (typeof options.handleId === 'number') {
              // in non-nodejs env, we remove timerId
              // from local cache
              delete tasksByHandleId[options.handleId];
            } else if (options.handleId) {
              // Node returns complex objects as handleIds
              // we remove task reference from timer object
              options.handleId[taskSymbol] = null;
            }
          }
        }
      };
      const task = scheduleMacroTaskWithCurrentZone(setName, args[0], options, scheduleTask, clearTask);
      if (!task) {
        return task;
      }
      // Node.js must additionally support the ref and unref functions.
      const handle = task.data.handleId;
      if (typeof handle === 'number') {
        // for non nodejs env, we save handleId: task
        // mapping in local cache for clearTimeout
        tasksByHandleId[handle] = task;
      } else if (handle) {
        // for nodejs env, we save task
        // reference in timerId Object for clearTimeout
        handle[taskSymbol] = task;
      }
      // check whether handle is null, because some polyfill or browser
      // may return undefined from setTimeout/setInterval/setImmediate/requestAnimationFrame
      if (handle && handle.ref && handle.unref && typeof handle.ref === 'function' && typeof handle.unref === 'function') {
        task.ref = handle.ref.bind(handle);
        task.unref = handle.unref.bind(handle);
      }
      if (typeof handle === 'number' || handle) {
        return handle;
      }
      return task;
    } else {
      // cause an error by calling it directly.
      return delegate.apply(window, args);
    }
  });
  clearNative = patchMethod(window, cancelName, delegate => function (self, args) {
    const id = args[0];
    let task;
    if (typeof id === 'number') {
      // non nodejs env.
      task = tasksByHandleId[id];
    } else {
      // nodejs env.
      task = id && id[taskSymbol];
      // other environments.
      if (!task) {
        task = id;
      }
    }
    if (task && typeof task.type === 'string') {
      if (task.state !== 'notScheduled' && (task.cancelFn && task.data.isPeriodic || task.runCount === 0)) {
        if (typeof id === 'number') {
          delete tasksByHandleId[id];
        } else if (id) {
          id[taskSymbol] = null;
        }
        // Do not cancel already canceled functions
        task.zone.cancelTask(task);
      }
    } else {
      // cause an error by calling it directly.
      delegate.apply(window, args);
    }
  });
}

/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
function patchCustomElements(_global, api) {
  const {
    isBrowser,
    isMix
  } = api.getGlobalObjects();
  if (!isBrowser && !isMix || !_global['customElements'] || !('customElements' in _global)) {
    return;
  }
  const callbacks = ['connectedCallback', 'disconnectedCallback', 'adoptedCallback', 'attributeChangedCallback'];
  api.patchCallbacks(api, _global.customElements, 'customElements', 'define', callbacks);
}

/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
function eventTargetPatch(_global, api) {
  if (Zone[api.symbol('patchEventTarget')]) {
    // EventTarget is already patched.
    return;
  }
  const {
    eventNames,
    zoneSymbolEventNames,
    TRUE_STR,
    FALSE_STR,
    ZONE_SYMBOL_PREFIX
  } = api.getGlobalObjects();
  //  predefine all __zone_symbol__ + eventName + true/false string
  for (let i = 0; i < eventNames.length; i++) {
    const eventName = eventNames[i];
    const falseEventName = eventName + FALSE_STR;
    const trueEventName = eventName + TRUE_STR;
    const symbol = ZONE_SYMBOL_PREFIX + falseEventName;
    const symbolCapture = ZONE_SYMBOL_PREFIX + trueEventName;
    zoneSymbolEventNames[eventName] = {};
    zoneSymbolEventNames[eventName][FALSE_STR] = symbol;
    zoneSymbolEventNames[eventName][TRUE_STR] = symbolCapture;
  }
  const EVENT_TARGET = _global['EventTarget'];
  if (!EVENT_TARGET || !EVENT_TARGET.prototype) {
    return;
  }
  api.patchEventTarget(_global, api, [EVENT_TARGET && EVENT_TARGET.prototype]);
  return true;
}
function patchEvent(global, api) {
  api.patchEventPrototype(global, api);
}

/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
Zone.__load_patch('legacy', global => {
  const legacyPatch = global[Zone.__symbol__('legacyPatch')];
  if (legacyPatch) {
    legacyPatch();
  }
});
Zone.__load_patch('queueMicrotask', (global, Zone, api) => {
  api.patchMethod(global, 'queueMicrotask', delegate => {
    return function (self, args) {
      Zone.current.scheduleMicroTask('queueMicrotask', args[0]);
    };
  });
});
Zone.__load_patch('timers', global => {
  const set = 'set';
  const clear = 'clear';
  patchTimer(global, set, clear, 'Timeout');
  patchTimer(global, set, clear, 'Interval');
  patchTimer(global, set, clear, 'Immediate');
});
Zone.__load_patch('requestAnimationFrame', global => {
  patchTimer(global, 'request', 'cancel', 'AnimationFrame');
  patchTimer(global, 'mozRequest', 'mozCancel', 'AnimationFrame');
  patchTimer(global, 'webkitRequest', 'webkitCancel', 'AnimationFrame');
});
Zone.__load_patch('blocking', (global, Zone) => {
  const blockingMethods = ['alert', 'prompt', 'confirm'];
  for (let i = 0; i < blockingMethods.length; i++) {
    const name = blockingMethods[i];
    patchMethod(global, name, (delegate, symbol, name) => {
      return function (s, args) {
        return Zone.current.run(delegate, global, args, name);
      };
    });
  }
});
Zone.__load_patch('EventTarget', (global, Zone, api) => {
  patchEvent(global, api);
  eventTargetPatch(global, api);
  // patch XMLHttpRequestEventTarget's addEventListener/removeEventListener
  const XMLHttpRequestEventTarget = global['XMLHttpRequestEventTarget'];
  if (XMLHttpRequestEventTarget && XMLHttpRequestEventTarget.prototype) {
    api.patchEventTarget(global, api, [XMLHttpRequestEventTarget.prototype]);
  }
});
Zone.__load_patch('MutationObserver', (global, Zone, api) => {
  patchClass('MutationObserver');
  patchClass('WebKitMutationObserver');
});
Zone.__load_patch('IntersectionObserver', (global, Zone, api) => {
  patchClass('IntersectionObserver');
});
Zone.__load_patch('FileReader', (global, Zone, api) => {
  patchClass('FileReader');
});
Zone.__load_patch('on_property', (global, Zone, api) => {
  propertyDescriptorPatch(api, global);
});
Zone.__load_patch('customElements', (global, Zone, api) => {
  patchCustomElements(global, api);
});
Zone.__load_patch('XHR', (global, Zone) => {
  // Treat XMLHttpRequest as a macrotask.
  patchXHR(global);
  const XHR_TASK = zoneSymbol('xhrTask');
  const XHR_SYNC = zoneSymbol('xhrSync');
  const XHR_LISTENER = zoneSymbol('xhrListener');
  const XHR_SCHEDULED = zoneSymbol('xhrScheduled');
  const XHR_URL = zoneSymbol('xhrURL');
  const XHR_ERROR_BEFORE_SCHEDULED = zoneSymbol('xhrErrorBeforeScheduled');
  function patchXHR(window) {
    const XMLHttpRequest = window['XMLHttpRequest'];
    if (!XMLHttpRequest) {
      // XMLHttpRequest is not available in service worker
      return;
    }
    const XMLHttpRequestPrototype = XMLHttpRequest.prototype;
    function findPendingTask(target) {
      return target[XHR_TASK];
    }
    let oriAddListener = XMLHttpRequestPrototype[ZONE_SYMBOL_ADD_EVENT_LISTENER];
    let oriRemoveListener = XMLHttpRequestPrototype[ZONE_SYMBOL_REMOVE_EVENT_LISTENER];
    if (!oriAddListener) {
      const XMLHttpRequestEventTarget = window['XMLHttpRequestEventTarget'];
      if (XMLHttpRequestEventTarget) {
        const XMLHttpRequestEventTargetPrototype = XMLHttpRequestEventTarget.prototype;
        oriAddListener = XMLHttpRequestEventTargetPrototype[ZONE_SYMBOL_ADD_EVENT_LISTENER];
        oriRemoveListener = XMLHttpRequestEventTargetPrototype[ZONE_SYMBOL_REMOVE_EVENT_LISTENER];
      }
    }
    const READY_STATE_CHANGE = 'readystatechange';
    const SCHEDULED = 'scheduled';
    function scheduleTask(task) {
      const data = task.data;
      const target = data.target;
      target[XHR_SCHEDULED] = false;
      target[XHR_ERROR_BEFORE_SCHEDULED] = false;
      // remove existing event listener
      const listener = target[XHR_LISTENER];
      if (!oriAddListener) {
        oriAddListener = target[ZONE_SYMBOL_ADD_EVENT_LISTENER];
        oriRemoveListener = target[ZONE_SYMBOL_REMOVE_EVENT_LISTENER];
      }
      if (listener) {
        oriRemoveListener.call(target, READY_STATE_CHANGE, listener);
      }
      const newListener = target[XHR_LISTENER] = () => {
        if (target.readyState === target.DONE) {
          // sometimes on some browsers XMLHttpRequest will fire onreadystatechange with
          // readyState=4 multiple times, so we need to check task state here
          if (!data.aborted && target[XHR_SCHEDULED] && task.state === SCHEDULED) {
            // check whether the xhr has registered onload listener
            // if that is the case, the task should invoke after all
            // onload listeners finish.
            // Also if the request failed without response (status = 0), the load event handler
            // will not be triggered, in that case, we should also invoke the placeholder callback
            // to close the XMLHttpRequest::send macroTask.
            // https://github.com/angular/angular/issues/38795
            const loadTasks = target[Zone.__symbol__('loadfalse')];
            if (target.status !== 0 && loadTasks && loadTasks.length > 0) {
              const oriInvoke = task.invoke;
              task.invoke = function () {
                // need to load the tasks again, because in other
                // load listener, they may remove themselves
                const loadTasks = target[Zone.__symbol__('loadfalse')];
                for (let i = 0; i < loadTasks.length; i++) {
                  if (loadTasks[i] === task) {
                    loadTasks.splice(i, 1);
                  }
                }
                if (!data.aborted && task.state === SCHEDULED) {
                  oriInvoke.call(task);
                }
              };
              loadTasks.push(task);
            } else {
              task.invoke();
            }
          } else if (!data.aborted && target[XHR_SCHEDULED] === false) {
            // error occurs when xhr.send()
            target[XHR_ERROR_BEFORE_SCHEDULED] = true;
          }
        }
      };
      oriAddListener.call(target, READY_STATE_CHANGE, newListener);
      const storedTask = target[XHR_TASK];
      if (!storedTask) {
        target[XHR_TASK] = task;
      }
      sendNative.apply(target, data.args);
      target[XHR_SCHEDULED] = true;
      return task;
    }
    function placeholderCallback() {}
    function clearTask(task) {
      const data = task.data;
      // Note - ideally, we would call data.target.removeEventListener here, but it's too late
      // to prevent it from firing. So instead, we store info for the event listener.
      data.aborted = true;
      return abortNative.apply(data.target, data.args);
    }
    const openNative = patchMethod(XMLHttpRequestPrototype, 'open', () => function (self, args) {
      self[XHR_SYNC] = args[2] == false;
      self[XHR_URL] = args[1];
      return openNative.apply(self, args);
    });
    const XMLHTTPREQUEST_SOURCE = 'XMLHttpRequest.send';
    const fetchTaskAborting = zoneSymbol('fetchTaskAborting');
    const fetchTaskScheduling = zoneSymbol('fetchTaskScheduling');
    const sendNative = patchMethod(XMLHttpRequestPrototype, 'send', () => function (self, args) {
      if (Zone.current[fetchTaskScheduling] === true) {
        // a fetch is scheduling, so we are using xhr to polyfill fetch
        // and because we already schedule macroTask for fetch, we should
        // not schedule a macroTask for xhr again
        return sendNative.apply(self, args);
      }
      if (self[XHR_SYNC]) {
        // if the XHR is sync there is no task to schedule, just execute the code.
        return sendNative.apply(self, args);
      } else {
        const options = {
          target: self,
          url: self[XHR_URL],
          isPeriodic: false,
          args: args,
          aborted: false
        };
        const task = scheduleMacroTaskWithCurrentZone(XMLHTTPREQUEST_SOURCE, placeholderCallback, options, scheduleTask, clearTask);
        if (self && self[XHR_ERROR_BEFORE_SCHEDULED] === true && !options.aborted && task.state === SCHEDULED) {
          // xhr request throw error when send
          // we should invoke task instead of leaving a scheduled
          // pending macroTask
          task.invoke();
        }
      }
    });
    const abortNative = patchMethod(XMLHttpRequestPrototype, 'abort', () => function (self, args) {
      const task = findPendingTask(self);
      if (task && typeof task.type == 'string') {
        // If the XHR has already completed, do nothing.
        // If the XHR has already been aborted, do nothing.
        // Fix #569, call abort multiple times before done will cause
        // macroTask task count be negative number
        if (task.cancelFn == null || task.data && task.data.aborted) {
          return;
        }
        task.zone.cancelTask(task);
      } else if (Zone.current[fetchTaskAborting] === true) {
        // the abort is called from fetch polyfill, we need to call native abort of XHR.
        return abortNative.apply(self, args);
      }
      // Otherwise, we are trying to abort an XHR which has not yet been sent, so there is no
      // task
      // to cancel. Do nothing.
    });
  }
});

Zone.__load_patch('geolocation', global => {
  /// GEO_LOCATION
  if (global['navigator'] && global['navigator'].geolocation) {
    patchPrototype(global['navigator'].geolocation, ['getCurrentPosition', 'watchPosition']);
  }
});
Zone.__load_patch('PromiseRejectionEvent', (global, Zone) => {
  // handle unhandled promise rejection
  function findPromiseRejectionHandler(evtName) {
    return function (e) {
      const eventTasks = findEventTasks(global, evtName);
      eventTasks.forEach(eventTask => {
        // windows has added unhandledrejection event listener
        // trigger the event listener
        const PromiseRejectionEvent = global['PromiseRejectionEvent'];
        if (PromiseRejectionEvent) {
          const evt = new PromiseRejectionEvent(evtName, {
            promise: e.promise,
            reason: e.rejection
          });
          eventTask.invoke(evt);
        }
      });
    };
  }
  if (global['PromiseRejectionEvent']) {
    Zone[zoneSymbol('unhandledPromiseRejectionHandler')] = findPromiseRejectionHandler('unhandledrejection');
    Zone[zoneSymbol('rejectionHandledHandler')] = findPromiseRejectionHandler('rejectionhandled');
  }
});

/***/ })

},
/******/ __webpack_require__ => { // webpackRuntimeModules
/******/ var __webpack_exec__ = (moduleId) => (__webpack_require__(__webpack_require__.s = moduleId))
/******/ var __webpack_exports__ = (__webpack_exec__(9932));
/******/ }
]);
//# sourceMappingURL=polyfills.js.map