try {

self['workbox:window:5.1.4'] && _();

} catch (e) {}

/*

Copyright 2019 Google LLC

Use of this source code is governed by an MIT-style
license that can be found in the LICENSE file or at
https://opensource.org/licenses/MIT.

*/ /**

* Sends a data object to a service worker via `postMessage` and resolves with
* a response (if any).
*
* A response can be set in a message handler in the service worker by
* calling `event.ports[0].postMessage(...)`, which will resolve the promise
* returned by `messageSW()`. If no response is set, the promise will not
* resolve.
*
* @param {ServiceWorker} sw The service worker to send the message to.
* @param {Object} data An object to send to the service worker.
* @return {Promise<Object|undefined>}
* @memberof module:workbox-window
*/

function messageSW(sw, data) {

return new Promise(function (resolve) {
  var messageChannel = new MessageChannel();

  messageChannel.port1.onmessage = function (event) {
    resolve(event.data);
  };

  sw.postMessage(data, [messageChannel.port2]);
});

}

function _defineProperties(target, props) {

for (var i = 0; i < props.length; i++) {
  var descriptor = props[i];
  descriptor.enumerable = descriptor.enumerable || false;
  descriptor.configurable = true;
  if ("value" in descriptor) descriptor.writable = true;
  Object.defineProperty(target, descriptor.key, descriptor);
}

}

function _createClass(Constructor, protoProps, staticProps) {

if (protoProps) _defineProperties(Constructor.prototype, protoProps);
if (staticProps) _defineProperties(Constructor, staticProps);
return Constructor;

}

function _inheritsLoose(subClass, superClass) {

subClass.prototype = Object.create(superClass.prototype);
subClass.prototype.constructor = subClass;
subClass.__proto__ = superClass;

}

function _unsupportedIterableToArray(o, minLen) {

if (!o) return;
if (typeof o === "string") return _arrayLikeToArray(o, minLen);
var n = Object.prototype.toString.call(o).slice(8, -1);
if (n === "Object" && o.constructor) n = o.constructor.name;
if (n === "Map" || n === "Set") return Array.from(o);
if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen);

}

function _arrayLikeToArray(arr, len) {

if (len == null || len > arr.length) len = arr.length;

for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i];

return arr2;

}

function _createForOfIteratorHelperLoose(o, allowArrayLike) {

var it;

if (typeof Symbol === "undefined" || o[Symbol.iterator] == null) {
  if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") {
    if (it) o = it;
    var i = 0;
    return function () {
      if (i >= o.length) return {
        done: true
      };
      return {
        done: false,
        value: o[i++]
      };
    };
  }

  throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
}

it = o[Symbol.iterator]();
return it.next.bind(it);

}

try {

self['workbox:core:5.1.4'] && _();

} catch (e) {}

/*

Copyright 2018 Google LLC

Use of this source code is governed by an MIT-style
license that can be found in the LICENSE file or at
https://opensource.org/licenses/MIT.

*/ /**

* The Deferred class composes Promises in a way that allows for them to be
* resolved or rejected from outside the constructor. In most cases promises
* should be used directly, but Deferreds can be necessary when the logic to
* resolve a promise must be separate.
*
* @private
*/

var Deferred = /**

* Creates a promise and exposes its resolve and reject functions as methods.
*/

function Deferred() {

var _this = this;

this.promise = new Promise(function (resolve, reject) {
  _this.resolve = resolve;
  _this.reject = reject;
});

};

/*

Copyright 2019 Google LLC
Use of this source code is governed by an MIT-style
license that can be found in the LICENSE file or at
https://opensource.org/licenses/MIT.

*/ /**

* A helper function that prevents a promise from being flagged as unused.
*
* @private
**/

function dontWaitFor(promise) {

// Effective no-op.
promise.then(function () {});

}

/*

Copyright 2019 Google LLC
Use of this source code is governed by an MIT-style
license that can be found in the LICENSE file or at
https://opensource.org/licenses/MIT.

*/ var logger = function () {

// Don't overwrite this value if it's already set.
// See https://github.com/GoogleChrome/workbox/pull/2284#issuecomment-560470923
if (!('__WB_DISABLE_DEV_LOGS' in self)) {
  self.__WB_DISABLE_DEV_LOGS = false;
}

var inGroup = false;
var methodToColorMap = {
  debug: "#7f8c8d",
  log: "#2ecc71",
  warn: "#f39c12",
  error: "#c0392b",
  groupCollapsed: "#3498db",
  groupEnd: null
};

var print = function print(method, args) {
  var _console2;

  if (self.__WB_DISABLE_DEV_LOGS) {
    return;
  }

  if (method === 'groupCollapsed') {
    // Safari doesn't print all console.groupCollapsed() arguments:
    // https://bugs.webkit.org/show_bug.cgi?id=182754
    if (/^((?!chrome|android).)*safari/i.test(navigator.userAgent)) {
      var _console;

      (_console = console)[method].apply(_console, args);

      return;
    }
  }

  var styles = ["background: " + methodToColorMap[method], "border-radius: 0.5em", "color: white", "font-weight: bold", "padding: 2px 0.5em"]; // When in a group, the workbox prefix is not displayed.

  var logPrefix = inGroup ? [] : ['%cworkbox', styles.join(';')];

  (_console2 = console)[method].apply(_console2, logPrefix.concat(args));

  if (method === 'groupCollapsed') {
    inGroup = true;
  }

  if (method === 'groupEnd') {
    inGroup = false;
  }
};

var api = {};
var loggerMethods = Object.keys(methodToColorMap);

var _loop = function _loop() {
  var key = _loggerMethods[_i];
  var method = key;

  api[method] = function () {
    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }

    print(method, args);
  };
};

for (var _i = 0, _loggerMethods = loggerMethods; _i < _loggerMethods.length; _i++) {
  _loop();
}

return api;

}();

/*

Copyright 2019 Google LLC

Use of this source code is governed by an MIT-style
license that can be found in the LICENSE file or at
https://opensource.org/licenses/MIT.

*/

/**

* A minimal `EventTarget` shim.
* This is necessary because not all browsers support constructable
* `EventTarget`, so using a real `EventTarget` will error.
* @private
*/

var WorkboxEventTarget = /*#__PURE__*/function () {

function WorkboxEventTarget() {
  this._eventListenerRegistry = new Map();
}
/**
 * @param {string} type
 * @param {Function} listener
 * @private
 */

var _proto = WorkboxEventTarget.prototype;

_proto.addEventListener = function addEventListener(type, listener) {
  var foo = this._getEventListenersByType(type);

  foo.add(listener);
}
/**
 * @param {string} type
 * @param {Function} listener
 * @private
 */
;

_proto.removeEventListener = function removeEventListener(type, listener) {
  this._getEventListenersByType(type).delete(listener);
}
/**
 * @param {Object} event
 * @private
 */
;

_proto.dispatchEvent = function dispatchEvent(event) {
  event.target = this;

  var listeners = this._getEventListenersByType(event.type);

  for (var _iterator = _createForOfIteratorHelperLoose(listeners), _step; !(_step = _iterator()).done;) {
    var listener = _step.value;
    listener(event);
  }
}
/**
 * Returns a Set of listeners associated with the passed event type.
 * If no handlers have been registered, an empty Set is returned.
 *
 * @param {string} type The event type.
 * @return {Set<ListenerCallback>} An array of handler functions.
 * @private
 */
;

_proto._getEventListenersByType = function _getEventListenersByType(type) {
  if (!this._eventListenerRegistry.has(type)) {
    this._eventListenerRegistry.set(type, new Set());
  }

  return this._eventListenerRegistry.get(type);
};

return WorkboxEventTarget;

}();

/*

Copyright 2019 Google LLC

Use of this source code is governed by an MIT-style
license that can be found in the LICENSE file or at
https://opensource.org/licenses/MIT.

*/ /**

* Returns true if two URLs have the same `.href` property. The URLS can be
* relative, and if they are the current location href is used to resolve URLs.
*
* @private
* @param {string} url1
* @param {string} url2
* @return {boolean}
*/

function urlsMatch(url1, url2) {

var _location = location,
    href = _location.href;
return new URL(url1, href).href === new URL(url2, href).href;

}

/*

Copyright 2019 Google LLC

Use of this source code is governed by an MIT-style
license that can be found in the LICENSE file or at
https://opensource.org/licenses/MIT.

*/ /**

* A minimal `Event` subclass shim.
* This doesn't *actually* subclass `Event` because not all browsers support
* constructable `EventTarget`, and using a real `Event` will error.
* @private
*/

var WorkboxEvent = function WorkboxEvent(type, props) {

this.type = type;
Object.assign(this, props);

};

// `skipWaiting()` wasn't called. This 200 amount wasn't scientifically // chosen, but it seems to avoid false positives in my testing.

function _await(value, then, direct) {

if (direct) {
  return then ? then(value) : value;
}

if (!value || !value.then) {
  value = Promise.resolve(value);
}

return then ? value.then(then) : value;

}

var WAITING_TIMEOUT_DURATION = 200; // The amount of time after a registration that we can reasonably conclude // that the registration didn't trigger an update.

function _async(f) {

return function () {
  for (var args = [], i = 0; i < arguments.length; i++) {
    args[i] = arguments[i];
  }

  try {
    return Promise.resolve(f.apply(this, args));
  } catch (e) {
    return Promise.reject(e);
  }
};

}

var REGISTRATION_TIMEOUT_DURATION = 60000; /**

* A class to aid in handling service worker registration, updates, and
* reacting to service worker lifecycle events.
*
* @fires [message]{@link module:workbox-window.Workbox#message}
* @fires [installed]{@link module:workbox-window.Workbox#installed}
* @fires [waiting]{@link module:workbox-window.Workbox#waiting}
* @fires [controlling]{@link module:workbox-window.Workbox#controlling}
* @fires [activated]{@link module:workbox-window.Workbox#activated}
* @fires [redundant]{@link module:workbox-window.Workbox#redundant}
* @fires [externalinstalled]{@link module:workbox-window.Workbox#externalinstalled}
* @fires [externalwaiting]{@link module:workbox-window.Workbox#externalwaiting}
* @fires [externalactivated]{@link module:workbox-window.Workbox#externalactivated}
* @memberof module:workbox-window
*/

function _empty() {}

var Workbox = /*#__PURE__*/function (_WorkboxEventTarget) {

_inheritsLoose(Workbox, _WorkboxEventTarget);

/**
 * Creates a new Workbox instance with a script URL and service worker
 * options. The script URL and options are the same as those used when
 * calling `navigator.serviceWorker.register(scriptURL, options)`. See:
 * https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorkerContainer/register
 *
 * @param {string} scriptURL The service worker script associated with this
 *     instance.
 * @param {Object} [registerOptions] The service worker options associated
 *     with this instance.
 */
function Workbox(scriptURL, registerOptions) {
  var _this;

  if (registerOptions === void 0) {
    registerOptions = {};
  }

  _this = _WorkboxEventTarget.call(this) || this;
  _this._registerOptions = {};
  _this._updateFoundCount = 0; // Deferreds we can resolve later.

  _this._swDeferred = new Deferred();
  _this._activeDeferred = new Deferred();
  _this._controllingDeferred = new Deferred();
  _this._registrationTime = 0;
  _this._ownSWs = new Set();
  /**
   * @private
   */

  _this._onUpdateFound = function () {
    // `this._registration` will never be `undefined` after an update is found.
    var registration = _this._registration;
    var installingSW = registration.installing; // If the script URL passed to `navigator.serviceWorker.register()` is
    // different from the current controlling SW's script URL, we know any
    // successful registration calls will trigger an `updatefound` event.
    // But if the registered script URL is the same as the current controlling
    // SW's script URL, we'll only get an `updatefound` event if the file
    // changed since it was last registered. This can be a problem if the user
    // opens up the same page in a different tab, and that page registers
    // a SW that triggers an update. It's a problem because this page has no
    // good way of knowing whether the `updatefound` event came from the SW
    // script it registered or from a registration attempt made by a newer
    // version of the page running in another tab.
    // To minimize the possibility of a false positive, we use the logic here:

    var updateLikelyTriggeredExternally = // Since we enforce only calling `register()` once, and since we don't
    // add the `updatefound` event listener until the `register()` call, if
    // `_updateFoundCount` is > 0 then it means this method has already
    // been called, thus this SW must be external
    _this._updateFoundCount > 0 || // If the script URL of the installing SW is different from this
    // instance's script URL, we know it's definitely not from our
    // registration.
    !urlsMatch(installingSW.scriptURL, _this._scriptURL) || // If all of the above are false, then we use a time-based heuristic:
    // Any `updatefound` event that occurs long after our registration is
    // assumed to be external.
    performance.now() > _this._registrationTime + REGISTRATION_TIMEOUT_DURATION ? // If any of the above are not true, we assume the update was
    // triggered by this instance.
    true : false;

    if (updateLikelyTriggeredExternally) {
      _this._externalSW = installingSW;
      registration.removeEventListener('updatefound', _this._onUpdateFound);
    } else {
      // If the update was not triggered externally we know the installing
      // SW is the one we registered, so we set it.
      _this._sw = installingSW;

      _this._ownSWs.add(installingSW);

      _this._swDeferred.resolve(installingSW); // The `installing` state isn't something we have a dedicated
      // callback for, but we do log messages for it in development.

      {
        if (navigator.serviceWorker.controller) {
          logger.log('Updated service worker found. Installing now...');
        } else {
          logger.log('Service worker is installing...');
        }
      }
    } // Increment the `updatefound` count, so future invocations of this
    // method can be sure they were triggered externally.

    ++_this._updateFoundCount; // Add a `statechange` listener regardless of whether this update was
    // triggered externally, since we have callbacks for both.

    installingSW.addEventListener('statechange', _this._onStateChange);
  };
  /**
   * @private
   * @param {Event} originalEvent
   */

  _this._onStateChange = function (originalEvent) {
    // `this._registration` will never be `undefined` after an update is found.
    var registration = _this._registration;
    var sw = originalEvent.target;
    var state = sw.state;
    var isExternal = sw === _this._externalSW;
    var eventPrefix = isExternal ? 'external' : '';
    var eventProps = {
      sw: sw,
      originalEvent: originalEvent
    };

    if (!isExternal && _this._isUpdate) {
      eventProps.isUpdate = true;
    }

    _this.dispatchEvent(new WorkboxEvent(eventPrefix + state, eventProps));

    if (state === 'installed') {
      // This timeout is used to ignore cases where the service worker calls
      // `skipWaiting()` in the install event, thus moving it directly in the
      // activating state. (Since all service workers *must* go through the
      // waiting phase, the only way to detect `skipWaiting()` called in the
      // install event is to observe that the time spent in the waiting phase
      // is very short.)
      // NOTE: we don't need separate timeouts for the own and external SWs
      // since they can't go through these phases at the same time.
      _this._waitingTimeout = self.setTimeout(function () {
        // Ensure the SW is still waiting (it may now be redundant).
        if (state === 'installed' && registration.waiting === sw) {
          _this.dispatchEvent(new WorkboxEvent(eventPrefix + 'waiting', eventProps));

          {
            if (isExternal) {
              logger.warn('An external service worker has installed but is ' + 'waiting for this client to close before activating...');
            } else {
              logger.warn('The service worker has installed but is waiting ' + 'for existing clients to close before activating...');
            }
          }
        }
      }, WAITING_TIMEOUT_DURATION);
    } else if (state === 'activating') {
      clearTimeout(_this._waitingTimeout);

      if (!isExternal) {
        _this._activeDeferred.resolve(sw);
      }
    }

    {
      switch (state) {
        case 'installed':
          if (isExternal) {
            logger.warn('An external service worker has installed. ' + 'You may want to suggest users reload this page.');
          } else {
            logger.log('Registered service worker installed.');
          }

          break;

        case 'activated':
          if (isExternal) {
            logger.warn('An external service worker has activated.');
          } else {
            logger.log('Registered service worker activated.');

            if (sw !== navigator.serviceWorker.controller) {
              logger.warn('The registered service worker is active but ' + 'not yet controlling the page. Reload or run ' + '`clients.claim()` in the service worker.');
            }
          }

          break;

        case 'redundant':
          if (sw === _this._compatibleControllingSW) {
            logger.log('Previously controlling service worker now redundant!');
          } else if (!isExternal) {
            logger.log('Registered service worker now redundant!');
          }

          break;
      }
    }
  };
  /**
   * @private
   * @param {Event} originalEvent
   */

  _this._onControllerChange = function (originalEvent) {
    var sw = _this._sw;

    if (sw === navigator.serviceWorker.controller) {
      _this.dispatchEvent(new WorkboxEvent('controlling', {
        sw: sw,
        originalEvent: originalEvent,
        isUpdate: _this._isUpdate
      }));

      {
        logger.log('Registered service worker now controlling this page.');
      }

      _this._controllingDeferred.resolve(sw);
    }
  };
  /**
   * @private
   * @param {Event} originalEvent
   */

  _this._onMessage = _async(function (originalEvent) {
    var data = originalEvent.data,
        source = originalEvent.source; // Wait until there's an "own" service worker. This is used to buffer
    // `message` events that may be received prior to calling `register()`.

    return _await(_this.getSW(), function () {
      if (_this._ownSWs.has(source)) {
        _this.dispatchEvent(new WorkboxEvent('message', {
          data: data,
          sw: source,
          originalEvent: originalEvent
        }));
      }
    }); // If the service worker that sent the message is in the list of own
    // service workers for this instance, dispatch a `message` event.
    // NOTE: we check for all previously owned service workers rather than
    // just the current one because some messages (e.g. cache updates) use
    // a timeout when sent and may be delayed long enough for a service worker
    // update to be found.
  });
  _this._scriptURL = scriptURL;
  _this._registerOptions = registerOptions; // Add a message listener immediately since messages received during
  // page load are buffered only until the DOMContentLoaded event:
  // https://github.com/GoogleChrome/workbox/issues/2202

  navigator.serviceWorker.addEventListener('message', _this._onMessage);
  return _this;
}
/**
 * Registers a service worker for this instances script URL and service
 * worker options. By default this method delays registration until after
 * the window has loaded.
 *
 * @param {Object} [options]
 * @param {Function} [options.immediate=false] Setting this to true will
 *     register the service worker immediately, even if the window has
 *     not loaded (not recommended).
 */

var _proto = Workbox.prototype;

_proto.register = function register(_temp) {
  var _ref = _temp === void 0 ? {} : _temp,
      _ref$immediate = _ref.immediate,
      immediate = _ref$immediate === void 0 ? false : _ref$immediate;

  try {
    var _this3 = this;

    if ("dev" !== 'production') {
      if (_this3._registrationTime) {
        logger.error('Cannot re-register a Workbox instance after it has ' + 'been registered. Create a new instance instead.');
        return;
      }
    }

    return _invoke(function () {
      if (!immediate && document.readyState !== 'complete') {
        return _awaitIgnored(new Promise(function (res) {
          return window.addEventListener('load', res);
        }));
      }
    }, function () {
      // Set this flag to true if any service worker was controlling the page
      // at registration time.
      _this3._isUpdate = Boolean(navigator.serviceWorker.controller); // Before registering, attempt to determine if a SW is already controlling
      // the page, and if that SW script (and version, if specified) matches this
      // instance's script.

      _this3._compatibleControllingSW = _this3._getControllingSWIfCompatible();
      return _await(_this3._registerScript(), function (_this2$_registerScrip) {
        _this3._registration = _this2$_registerScrip;

        // If we have a compatible controller, store the controller as the "own"
        // SW, resolve active/controlling deferreds and add necessary listeners.
        if (_this3._compatibleControllingSW) {
          _this3._sw = _this3._compatibleControllingSW;

          _this3._activeDeferred.resolve(_this3._compatibleControllingSW);

          _this3._controllingDeferred.resolve(_this3._compatibleControllingSW);

          _this3._compatibleControllingSW.addEventListener('statechange', _this3._onStateChange, {
            once: true
          });
        } // If there's a waiting service worker with a matching URL before the
        // `updatefound` event fires, it likely means that this site is open
        // in another tab, or the user refreshed the page (and thus the previous
        // page wasn't fully unloaded before this page started loading).
        // https://developers.google.com/web/fundamentals/primers/service-workers/lifecycle#waiting

        var waitingSW = _this3._registration.waiting;

        if (waitingSW && urlsMatch(waitingSW.scriptURL, _this3._scriptURL)) {
          // Store the waiting SW as the "own" Sw, even if it means overwriting
          // a compatible controller.
          _this3._sw = waitingSW; // Run this in the next microtask, so any code that adds an event
          // listener after awaiting `register()` will get this event.

          dontWaitFor(Promise.resolve().then(function () {
            _this3.dispatchEvent(new WorkboxEvent('waiting', {
              sw: waitingSW,
              wasWaitingBeforeRegister: true
            }));

            if ("dev" !== 'production') {
              logger.warn('A service worker was already waiting to activate ' + 'before this script was registered...');
            }
          }));
        } // If an "own" SW is already set, resolve the deferred.

        if (_this3._sw) {
          _this3._swDeferred.resolve(_this3._sw);

          _this3._ownSWs.add(_this3._sw);
        }

        if ("dev" !== 'production') {
          logger.log('Successfully registered service worker.', _this3._scriptURL);

          if (navigator.serviceWorker.controller) {
            if (_this3._compatibleControllingSW) {
              logger.debug('A service worker with the same script URL ' + 'is already controlling this page.');
            } else {
              logger.debug('A service worker with a different script URL is ' + 'currently controlling the page. The browser is now fetching ' + 'the new script now...');
            }
          }

          var currentPageIsOutOfScope = function currentPageIsOutOfScope() {
            var scopeURL = new URL(_this3._registerOptions.scope || _this3._scriptURL, document.baseURI);
            var scopeURLBasePath = new URL('./', scopeURL.href).pathname;
            return !location.pathname.startsWith(scopeURLBasePath);
          };

          if (currentPageIsOutOfScope()) {
            logger.warn('The current page is not in scope for the registered ' + 'service worker. Was this a mistake?');
          }
        }

        _this3._registration.addEventListener('updatefound', _this3._onUpdateFound);

        navigator.serviceWorker.addEventListener('controllerchange', _this3._onControllerChange, {
          once: true
        });
        return _this3._registration;
      });
    });
  } catch (e) {
    return Promise.reject(e);
  }
}
/**
 * Checks for updates of the registered service worker.
 */
;

_proto.update = function update() {
  try {
    var _this5 = this;

    if (!_this5._registration) {
      if ("dev" !== 'production') {
        logger.error('Cannot update a Workbox instance without ' + 'being registered. Register the Workbox instance first.');
      }

      return;
    } // Try to update registration

    return _awaitIgnored(_this5._registration.update());
  } catch (e) {
    return Promise.reject(e);
  }
}
/**
 * Resolves to the service worker registered by this instance as soon as it
 * is active. If a service worker was already controlling at registration
 * time then it will resolve to that if the script URLs (and optionally
 * script versions) match, otherwise it will wait until an update is found
 * and activates.
 *
 * @return {Promise<ServiceWorker>}
 */
;

/**
 * Resolves with a reference to a service worker that matches the script URL
 * of this instance, as soon as it's available.
 *
 * If, at registration time, there's already an active or waiting service
 * worker with a matching script URL, it will be used (with the waiting
 * service worker taking precedence over the active service worker if both
 * match, since the waiting service worker would have been registered more
 * recently).
 * If there's no matching active or waiting service worker at registration
 * time then the promise will not resolve until an update is found and starts
 * installing, at which point the installing service worker is used.
 *
 * @return {Promise<ServiceWorker>}
 */
_proto.getSW = function getSW() {
  try {
    var _this7 = this;

    // If `this._sw` is set, resolve with that as we want `getSW()` to
    // return the correct (new) service worker if an update is found.
    return _this7._sw !== undefined ? _this7._sw : _this7._swDeferred.promise;
  } catch (e) {
    return Promise.reject(e);
  }
}
/**
 * Sends the passed data object to the service worker registered by this
 * instance (via [`getSW()`]{@link module:workbox-window.Workbox#getSW}) and resolves
 * with a response (if any).
 *
 * A response can be set in a message handler in the service worker by
 * calling `event.ports[0].postMessage(...)`, which will resolve the promise
 * returned by `messageSW()`. If no response is set, the promise will never
 * resolve.
 *
 * @param {Object} data An object to send to the service worker
 * @return {Promise<Object>}
 */
;

_proto.messageSW = function messageSW$1(data) {
  try {
    var _this9 = this;

    return _await(_this9.getSW(), function (sw) {
      return messageSW(sw, data);
    });
  } catch (e) {
    return Promise.reject(e);
  }
}
/**
 * Checks for a service worker already controlling the page and returns
 * it if its script URL matches.
 *
 * @private
 * @return {ServiceWorker|undefined}
 */
;

_proto._getControllingSWIfCompatible = function _getControllingSWIfCompatible() {
  var controller = navigator.serviceWorker.controller;

  if (controller && urlsMatch(controller.scriptURL, this._scriptURL)) {
    return controller;
  } else {
    return undefined;
  }
}
/**
 * Registers a service worker for this instances script URL and register
 * options and tracks the time registration was complete.
 *
 * @private
 */
;

_proto._registerScript = function _registerScript() {
  try {
    var _this11 = this;

    return _catch(function () {
      return _await(navigator.serviceWorker.register(_this11._scriptURL, _this11._registerOptions), function (reg) {
        // Keep track of when registration happened, so it can be used in the
        // `this._onUpdateFound` heuristic. Also use the presence of this
        // property as a way to see if `.register()` has been called.
        _this11._registrationTime = performance.now();
        return reg;
      });
    }, function (error) {
      if ("dev" !== 'production') {
        logger.error(error);
      } // Re-throw the error.

      throw error;
    });
  } catch (e) {
    return Promise.reject(e);
  }
};

_createClass(Workbox, [{
  key: "active",
  get: function get() {
    return this._activeDeferred.promise;
  }
  /**
   * Resolves to the service worker registered by this instance as soon as it
   * is controlling the page. If a service worker was already controlling at
   * registration time then it will resolve to that if the script URLs (and
   * optionally script versions) match, otherwise it will wait until an update
   * is found and starts controlling the page.
   * Note: the first time a service worker is installed it will active but
   * not start controlling the page unless `clients.claim()` is called in the
   * service worker.
   *
   * @return {Promise<ServiceWorker>}
   */

}, {
  key: "controlling",
  get: function get() {
    return this._controllingDeferred.promise;
  }
}]);

return Workbox;

}(WorkboxEventTarget);

function _awaitIgnored(value, direct) {

if (!direct) {
  return value && value.then ? value.then(_empty) : Promise.resolve();
}

} // The jsdoc comments below outline the events this instance may dispatch: // ———————————————————————–

/**

* The `message` event is dispatched any time a `postMessage` is received.
*
* @event module:workbox-window.Workbox#message
* @type {WorkboxEvent}
* @property {*} data The `data` property from the original `message` event.
* @property {Event} originalEvent The original [`message`]{@link https://developer.mozilla.org/en-US/docs/Web/API/MessageEvent}
*     event.
* @property {string} type `message`.
* @property {Workbox} target The `Workbox` instance.
*/

/**

* The `installed` event is dispatched if the state of a
* [`Workbox`]{@link module:workbox-window.Workbox} instance's
* [registered service worker]{@link https://developers.google.com/web/tools/workbox/modules/workbox-precaching#def-registered-sw}
* changes to `installed`.
*
* Then can happen either the very first time a service worker is installed,
* or after an update to the current service worker is found. In the case
* of an update being found, the event's `isUpdate` property will be `true`.
*
* @event module:workbox-window.Workbox#installed
* @type {WorkboxEvent}
* @property {ServiceWorker} sw The service worker instance.
* @property {Event} originalEvent The original [`statechange`]{@link https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorker/onstatechange}
*     event.
* @property {boolean|undefined} isUpdate True if a service worker was already
*     controlling when this `Workbox` instance called `register()`.
* @property {string} type `installed`.
* @property {Workbox} target The `Workbox` instance.
*/

/**

* The `waiting` event is dispatched if the state of a
* [`Workbox`]{@link module:workbox-window.Workbox} instance's
* [registered service worker]{@link https://developers.google.com/web/tools/workbox/modules/workbox-precaching#def-registered-sw}
* changes to `installed` and then doesn't immediately change to `activating`.
* It may also be dispatched if a service worker with the same
* [`scriptURL`]{@link https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorker/scriptURL}
* was already waiting when the [`register()`]{@link module:workbox-window.Workbox#register}
* method was called.
*
* @event module:workbox-window.Workbox#waiting
* @type {WorkboxEvent}
* @property {ServiceWorker} sw The service worker instance.
* @property {Event|undefined} originalEvent The original
*    [`statechange`]{@link https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorker/onstatechange}
*     event, or `undefined` in the case where the service worker was waiting
*     to before `.register()` was called.
* @property {boolean|undefined} isUpdate True if a service worker was already
*     controlling when this `Workbox` instance called `register()`.
* @property {boolean|undefined} wasWaitingBeforeRegister True if a service worker with
*     a matching `scriptURL` was already waiting when this `Workbox`
*     instance called `register()`.
* @property {string} type `waiting`.
* @property {Workbox} target The `Workbox` instance.
*/

/**

* The `controlling` event is dispatched if a
* [`controllerchange`]{@link https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorkerContainer/oncontrollerchange}
* fires on the service worker [container]{@link https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorkerContainer}
* and the [`scriptURL`]{@link https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorker/scriptURL}
* of the new [controller]{@link https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorkerContainer/controller}
* matches the `scriptURL` of the `Workbox` instance's
* [registered service worker]{@link https://developers.google.com/web/tools/workbox/modules/workbox-precaching#def-registered-sw}.
*
* @event module:workbox-window.Workbox#controlling
* @type {WorkboxEvent}
* @property {ServiceWorker} sw The service worker instance.
* @property {Event} originalEvent The original [`controllerchange`]{@link https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorkerContainer/oncontrollerchange}
*     event.
* @property {boolean|undefined} isUpdate True if a service worker was already
*     controlling when this service worker was registered.
* @property {string} type `controlling`.
* @property {Workbox} target The `Workbox` instance.
*/

/**

* The `activated` event is dispatched if the state of a
* [`Workbox`]{@link module:workbox-window.Workbox} instance's
* [registered service worker]{@link https://developers.google.com/web/tools/workbox/modules/workbox-precaching#def-registered-sw}
* changes to `activated`.
*
* @event module:workbox-window.Workbox#activated
* @type {WorkboxEvent}
* @property {ServiceWorker} sw The service worker instance.
* @property {Event} originalEvent The original [`statechange`]{@link https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorker/onstatechange}
*     event.
* @property {boolean|undefined} isUpdate True if a service worker was already
*     controlling when this `Workbox` instance called `register()`.
* @property {string} type `activated`.
* @property {Workbox} target The `Workbox` instance.
*/

/**

* The `redundant` event is dispatched if the state of a
* [`Workbox`]{@link module:workbox-window.Workbox} instance's
* [registered service worker]{@link https://developers.google.com/web/tools/workbox/modules/workbox-precaching#def-registered-sw}
* changes to `redundant`.
*
* @event module:workbox-window.Workbox#redundant
* @type {WorkboxEvent}
* @property {ServiceWorker} sw The service worker instance.
* @property {Event} originalEvent The original [`statechange`]{@link https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorker/onstatechange}
*     event.
* @property {boolean|undefined} isUpdate True if a service worker was already
*     controlling when this `Workbox` instance called `register()`.
* @property {string} type `redundant`.
* @property {Workbox} target The `Workbox` instance.
*/

/**

* The `externalinstalled` event is dispatched if the state of an
* [external service worker]{@link https://developers.google.com/web/tools/workbox/modules/workbox-window#when_an_unexpected_version_of_the_service_worker_is_found}
* changes to `installed`.
*
* @event module:workbox-window.Workbox#externalinstalled
* @type {WorkboxEvent}
* @property {ServiceWorker} sw The service worker instance.
* @property {Event} originalEvent The original [`statechange`]{@link https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorker/onstatechange}
*     event.
* @property {string} type `externalinstalled`.
* @property {Workbox} target The `Workbox` instance.
*/

/**

* The `externalwaiting` event is dispatched if the state of an
* [external service worker]{@link https://developers.google.com/web/tools/workbox/modules/workbox-window#when_an_unexpected_version_of_the_service_worker_is_found}
* changes to `waiting`.
*
* @event module:workbox-window.Workbox#externalwaiting
* @type {WorkboxEvent}
* @property {ServiceWorker} sw The service worker instance.
* @property {Event} originalEvent The original [`statechange`]{@link https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorker/onstatechange}
*     event.
* @property {string} type `externalwaiting`.
* @property {Workbox} target The `Workbox` instance.
*/

/**

* The `externalactivated` event is dispatched if the state of an
* [external service worker]{@link https://developers.google.com/web/tools/workbox/modules/workbox-window#when_an_unexpected_version_of_the_service_worker_is_found}
* changes to `activated`.
*
* @event module:workbox-window.Workbox#externalactivated
* @type {WorkboxEvent}
* @property {ServiceWorker} sw The service worker instance.
* @property {Event} originalEvent The original [`statechange`]{@link https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorker/onstatechange}
*     event.
* @property {string} type `externalactivated`.
* @property {Workbox} target The `Workbox` instance.
*/

function _invoke(body, then) {

var result = body();

if (result && result.then) {
  return result.then(then);
}

return then(result);

}

function _catch(body, recover) {

try {
  var result = body();
} catch (e) {
  return recover(e);
}

if (result && result.then) {
  return result.then(void 0, recover);
}

return result;

}

export { Workbox, messageSW }; //# sourceMappingURL=workbox-window.dev.es5.mjs.map