chore(deps): update lockfile

Signed-off-by: John Molakvoæ <skjnldsv@protonmail.com>

1 files changed, 3119 insertions, 0 deletions

diff --git a/dist/preview-service-worker.js b/dist/preview-service-worker.js
new file mode 100644
index 00000000000..68fb455a419
--- /dev/null
+++ b/dist/preview-service-worker.js
@@ -0,0 +1,3119 @@
+// @ts-ignore
+try {
+  self['workbox:core:6.5.3'] && _();
+} 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.
+*/
+const logger = (() => {
+  // 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;
+  }
+  let inGroup = false;
+  const methodToColorMap = {
+    debug: `#7f8c8d`,
+    log: `#2ecc71`,
+    warn: `#f39c12`,
+    error: `#c0392b`,
+    groupCollapsed: `#3498db`,
+    groupEnd: null // No colored prefix on groupEnd
+  };
+
+  const print = function (method, args) {
+    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)) {
+        console[method](...args);
+        return;
+      }
+    }
+    const 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.
+    const logPrefix = inGroup ? [] : ['%cworkbox', styles.join(';')];
+    console[method](...logPrefix, ...args);
+    if (method === 'groupCollapsed') {
+      inGroup = true;
+    }
+    if (method === 'groupEnd') {
+      inGroup = false;
+    }
+  };
+  // eslint-disable-next-line @typescript-eslint/ban-types
+  const api = {};
+  const loggerMethods = Object.keys(methodToColorMap);
+  for (const key of loggerMethods) {
+    const method = key;
+    api[method] = (...args) => {
+      print(method, args);
+    };
+  }
+  return api;
+})();
+
+/*
+  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.
+*/
+const messages$1 = {
+  'invalid-value': ({
+    paramName,
+    validValueDescription,
+    value
+  }) => {
+    if (!paramName || !validValueDescription) {
+      throw new Error(`Unexpected input to 'invalid-value' error.`);
+    }
+    return `The '${paramName}' parameter was given a value with an ` + `unexpected value. ${validValueDescription} Received a value of ` + `${JSON.stringify(value)}.`;
+  },
+  'not-an-array': ({
+    moduleName,
+    className,
+    funcName,
+    paramName
+  }) => {
+    if (!moduleName || !className || !funcName || !paramName) {
+      throw new Error(`Unexpected input to 'not-an-array' error.`);
+    }
+    return `The parameter '${paramName}' passed into ` + `'${moduleName}.${className}.${funcName}()' must be an array.`;
+  },
+  'incorrect-type': ({
+    expectedType,
+    paramName,
+    moduleName,
+    className,
+    funcName
+  }) => {
+    if (!expectedType || !paramName || !moduleName || !funcName) {
+      throw new Error(`Unexpected input to 'incorrect-type' error.`);
+    }
+    const classNameStr = className ? `${className}.` : '';
+    return `The parameter '${paramName}' passed into ` + `'${moduleName}.${classNameStr}` + `${funcName}()' must be of type ${expectedType}.`;
+  },
+  'incorrect-class': ({
+    expectedClassName,
+    paramName,
+    moduleName,
+    className,
+    funcName,
+    isReturnValueProblem
+  }) => {
+    if (!expectedClassName || !moduleName || !funcName) {
+      throw new Error(`Unexpected input to 'incorrect-class' error.`);
+    }
+    const classNameStr = className ? `${className}.` : '';
+    if (isReturnValueProblem) {
+      return `The return value from ` + `'${moduleName}.${classNameStr}${funcName}()' ` + `must be an instance of class ${expectedClassName}.`;
+    }
+    return `The parameter '${paramName}' passed into ` + `'${moduleName}.${classNameStr}${funcName}()' ` + `must be an instance of class ${expectedClassName}.`;
+  },
+  'missing-a-method': ({
+    expectedMethod,
+    paramName,
+    moduleName,
+    className,
+    funcName
+  }) => {
+    if (!expectedMethod || !paramName || !moduleName || !className || !funcName) {
+      throw new Error(`Unexpected input to 'missing-a-method' error.`);
+    }
+    return `${moduleName}.${className}.${funcName}() expected the ` + `'${paramName}' parameter to expose a '${expectedMethod}' method.`;
+  },
+  'add-to-cache-list-unexpected-type': ({
+    entry
+  }) => {
+    return `An unexpected entry was passed to ` + `'workbox-precaching.PrecacheController.addToCacheList()' The entry ` + `'${JSON.stringify(entry)}' isn't supported. You must supply an array of ` + `strings with one or more characters, objects with a url property or ` + `Request objects.`;
+  },
+  'add-to-cache-list-conflicting-entries': ({
+    firstEntry,
+    secondEntry
+  }) => {
+    if (!firstEntry || !secondEntry) {
+      throw new Error(`Unexpected input to ` + `'add-to-cache-list-duplicate-entries' error.`);
+    }
+    return `Two of the entries passed to ` + `'workbox-precaching.PrecacheController.addToCacheList()' had the URL ` + `${firstEntry} but different revision details. Workbox is ` + `unable to cache and version the asset correctly. Please remove one ` + `of the entries.`;
+  },
+  'plugin-error-request-will-fetch': ({
+    thrownErrorMessage
+  }) => {
+    if (!thrownErrorMessage) {
+      throw new Error(`Unexpected input to ` + `'plugin-error-request-will-fetch', error.`);
+    }
+    return `An error was thrown by a plugins 'requestWillFetch()' method. ` + `The thrown error message was: '${thrownErrorMessage}'.`;
+  },
+  'invalid-cache-name': ({
+    cacheNameId,
+    value
+  }) => {
+    if (!cacheNameId) {
+      throw new Error(`Expected a 'cacheNameId' for error 'invalid-cache-name'`);
+    }
+    return `You must provide a name containing at least one character for ` + `setCacheDetails({${cacheNameId}: '...'}). Received a value of ` + `'${JSON.stringify(value)}'`;
+  },
+  'unregister-route-but-not-found-with-method': ({
+    method
+  }) => {
+    if (!method) {
+      throw new Error(`Unexpected input to ` + `'unregister-route-but-not-found-with-method' error.`);
+    }
+    return `The route you're trying to unregister was not  previously ` + `registered for the method type '${method}'.`;
+  },
+  'unregister-route-route-not-registered': () => {
+    return `The route you're trying to unregister was not previously ` + `registered.`;
+  },
+  'queue-replay-failed': ({
+    name
+  }) => {
+    return `Replaying the background sync queue '${name}' failed.`;
+  },
+  'duplicate-queue-name': ({
+    name
+  }) => {
+    return `The Queue name '${name}' is already being used. ` + `All instances of backgroundSync.Queue must be given unique names.`;
+  },
+  'expired-test-without-max-age': ({
+    methodName,
+    paramName
+  }) => {
+    return `The '${methodName}()' method can only be used when the ` + `'${paramName}' is used in the constructor.`;
+  },
+  'unsupported-route-type': ({
+    moduleName,
+    className,
+    funcName,
+    paramName
+  }) => {
+    return `The supplied '${paramName}' parameter was an unsupported type. ` + `Please check the docs for ${moduleName}.${className}.${funcName} for ` + `valid input types.`;
+  },
+  'not-array-of-class': ({
+    value,
+    expectedClass,
+    moduleName,
+    className,
+    funcName,
+    paramName
+  }) => {
+    return `The supplied '${paramName}' parameter must be an array of ` + `'${expectedClass}' objects. Received '${JSON.stringify(value)},'. ` + `Please check the call to ${moduleName}.${className}.${funcName}() ` + `to fix the issue.`;
+  },
+  'max-entries-or-age-required': ({
+    moduleName,
+    className,
+    funcName
+  }) => {
+    return `You must define either config.maxEntries or config.maxAgeSeconds` + `in ${moduleName}.${className}.${funcName}`;
+  },
+  'statuses-or-headers-required': ({
+    moduleName,
+    className,
+    funcName
+  }) => {
+    return `You must define either config.statuses or config.headers` + `in ${moduleName}.${className}.${funcName}`;
+  },
+  'invalid-string': ({
+    moduleName,
+    funcName,
+    paramName
+  }) => {
+    if (!paramName || !moduleName || !funcName) {
+      throw new Error(`Unexpected input to 'invalid-string' error.`);
+    }
+    return `When using strings, the '${paramName}' parameter must start with ` + `'http' (for cross-origin matches) or '/' (for same-origin matches). ` + `Please see the docs for ${moduleName}.${funcName}() for ` + `more info.`;
+  },
+  'channel-name-required': () => {
+    return `You must provide a channelName to construct a ` + `BroadcastCacheUpdate instance.`;
+  },
+  'invalid-responses-are-same-args': () => {
+    return `The arguments passed into responsesAreSame() appear to be ` + `invalid. Please ensure valid Responses are used.`;
+  },
+  'expire-custom-caches-only': () => {
+    return `You must provide a 'cacheName' property when using the ` + `expiration plugin with a runtime caching strategy.`;
+  },
+  'unit-must-be-bytes': ({
+    normalizedRangeHeader
+  }) => {
+    if (!normalizedRangeHeader) {
+      throw new Error(`Unexpected input to 'unit-must-be-bytes' error.`);
+    }
+    return `The 'unit' portion of the Range header must be set to 'bytes'. ` + `The Range header provided was "${normalizedRangeHeader}"`;
+  },
+  'single-range-only': ({
+    normalizedRangeHeader
+  }) => {
+    if (!normalizedRangeHeader) {
+      throw new Error(`Unexpected input to 'single-range-only' error.`);
+    }
+    return `Multiple ranges are not supported. Please use a  single start ` + `value, and optional end value. The Range header provided was ` + `"${normalizedRangeHeader}"`;
+  },
+  'invalid-range-values': ({
+    normalizedRangeHeader
+  }) => {
+    if (!normalizedRangeHeader) {
+      throw new Error(`Unexpected input to 'invalid-range-values' error.`);
+    }
+    return `The Range header is missing both start and end values. At least ` + `one of those values is needed. The Range header provided was ` + `"${normalizedRangeHeader}"`;
+  },
+  'no-range-header': () => {
+    return `No Range header was found in the Request provided.`;
+  },
+  'range-not-satisfiable': ({
+    size,
+    start,
+    end
+  }) => {
+    return `The start (${start}) and end (${end}) values in the Range are ` + `not satisfiable by the cached response, which is ${size} bytes.`;
+  },
+  'attempt-to-cache-non-get-request': ({
+    url,
+    method
+  }) => {
+    return `Unable to cache '${url}' because it is a '${method}' request and ` + `only 'GET' requests can be cached.`;
+  },
+  'cache-put-with-no-response': ({
+    url
+  }) => {
+    return `There was an attempt to cache '${url}' but the response was not ` + `defined.`;
+  },
+  'no-response': ({
+    url,
+    error
+  }) => {
+    let message = `The strategy could not generate a response for '${url}'.`;
+    if (error) {
+      message += ` The underlying error is ${error}.`;
+    }
+    return message;
+  },
+  'bad-precaching-response': ({
+    url,
+    status
+  }) => {
+    return `The precaching request for '${url}' failed` + (status ? ` with an HTTP status of ${status}.` : `.`);
+  },
+  'non-precached-url': ({
+    url
+  }) => {
+    return `createHandlerBoundToURL('${url}') was called, but that URL is ` + `not precached. Please pass in a URL that is precached instead.`;
+  },
+  'add-to-cache-list-conflicting-integrities': ({
+    url
+  }) => {
+    return `Two of the entries passed to ` + `'workbox-precaching.PrecacheController.addToCacheList()' had the URL ` + `${url} with different integrity values. Please remove one of them.`;
+  },
+  'missing-precache-entry': ({
+    cacheName,
+    url
+  }) => {
+    return `Unable to find a precached response in ${cacheName} for ${url}.`;
+  },
+  'cross-origin-copy-response': ({
+    origin
+  }) => {
+    return `workbox-core.copyResponse() can only be used with same-origin ` + `responses. It was passed a response with origin ${origin}.`;
+  },
+  'opaque-streams-source': ({
+    type
+  }) => {
+    const message = `One of the workbox-streams sources resulted in an ` + `'${type}' response.`;
+    if (type === 'opaqueredirect') {
+      return `${message} Please do not use a navigation request that results ` + `in a redirect as a source.`;
+    }
+    return `${message} Please ensure your sources are CORS-enabled.`;
+  }
+};
+
+/*
+  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.
+*/
+const generatorFunction = (code, details = {}) => {
+  const message = messages$1[code];
+  if (!message) {
+    throw new Error(`Unable to find message for code '${code}'.`);
+  }
+  return message(details);
+};
+const messageGenerator = generatorFunction;
+
+/*
+  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.
+*/
+/**
+ * Workbox errors should be thrown with this class.
+ * This allows use to ensure the type easily in tests,
+ * helps developers identify errors from workbox
+ * easily and allows use to optimise error
+ * messages correctly.
+ *
+ * @private
+ */
+class WorkboxError extends Error {
+  /**
+   *
+   * @param {string} errorCode The error code that
+   * identifies this particular error.
+   * @param {Object=} details Any relevant arguments
+   * that will help developers identify issues should
+   * be added as a key on the context object.
+   */
+  constructor(errorCode, details) {
+    const message = messageGenerator(errorCode, details);
+    super(message);
+    this.name = errorCode;
+    this.details = details;
+  }
+}
+
+/*
+  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.
+*/
+/*
+ * This method throws if the supplied value is not an array.
+ * The destructed values are required to produce a meaningful error for users.
+ * The destructed and restructured object is so it's clear what is
+ * needed.
+ */
+const isArray = (value, details) => {
+  if (!Array.isArray(value)) {
+    throw new WorkboxError('not-an-array', details);
+  }
+};
+const hasMethod = (object, expectedMethod, details) => {
+  const type = typeof object[expectedMethod];
+  if (type !== 'function') {
+    details['expectedMethod'] = expectedMethod;
+    throw new WorkboxError('missing-a-method', details);
+  }
+};
+const isType = (object, expectedType, details) => {
+  if (typeof object !== expectedType) {
+    details['expectedType'] = expectedType;
+    throw new WorkboxError('incorrect-type', details);
+  }
+};
+const isInstance = (object,
+// Need the general type to do the check later.
+// eslint-disable-next-line @typescript-eslint/ban-types
+expectedClass, details) => {
+  if (!(object instanceof expectedClass)) {
+    details['expectedClassName'] = expectedClass.name;
+    throw new WorkboxError('incorrect-class', details);
+  }
+};
+const isOneOf = (value, validValues, details) => {
+  if (!validValues.includes(value)) {
+    details['validValueDescription'] = `Valid values are ${JSON.stringify(validValues)}.`;
+    throw new WorkboxError('invalid-value', details);
+  }
+};
+const isArrayOfClass = (value,
+// Need general type to do check later.
+expectedClass,
+// eslint-disable-line
+details) => {
+  const error = new WorkboxError('not-array-of-class', details);
+  if (!Array.isArray(value)) {
+    throw error;
+  }
+  for (const item of value) {
+    if (!(item instanceof expectedClass)) {
+      throw error;
+    }
+  }
+};
+const finalAssertExports = {
+  hasMethod,
+  isArray,
+  isInstance,
+  isOneOf,
+  isType,
+  isArrayOfClass
+};
+
+// @ts-ignore
+try {
+  self['workbox:routing:6.5.3'] && _();
+} 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 default HTTP method, 'GET', used when there's no specific method
+ * configured for a route.
+ *
+ * @type {string}
+ *
+ * @private
+ */
+const defaultMethod = 'GET';
+/**
+ * The list of valid HTTP methods associated with requests that could be routed.
+ *
+ * @type {Array<string>}
+ *
+ * @private
+ */
+const validMethods = ['DELETE', 'GET', 'HEAD', 'PATCH', 'POST', 'PUT'];
+
+/*
+  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.
+*/
+/**
+ * @param {function()|Object} handler Either a function, or an object with a
+ * 'handle' method.
+ * @return {Object} An object with a handle method.
+ *
+ * @private
+ */
+const normalizeHandler = handler => {
+  if (handler && typeof handler === 'object') {
+    {
+      finalAssertExports.hasMethod(handler, 'handle', {
+        moduleName: 'workbox-routing',
+        className: 'Route',
+        funcName: 'constructor',
+        paramName: 'handler'
+      });
+    }
+    return handler;
+  } else {
+    {
+      finalAssertExports.isType(handler, 'function', {
+        moduleName: 'workbox-routing',
+        className: 'Route',
+        funcName: 'constructor',
+        paramName: 'handler'
+      });
+    }
+    return {
+      handle: handler
+    };
+  }
+};
+
+/*
+  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.
+*/
+/**
+ * A `Route` consists of a pair of callback functions, "match" and "handler".
+ * The "match" callback determine if a route should be used to "handle" a
+ * request by returning a non-falsy value if it can. The "handler" callback
+ * is called when there is a match and should return a Promise that resolves
+ * to a `Response`.
+ *
+ * @memberof workbox-routing
+ */
+class Route {
+  /**
+   * Constructor for Route class.
+   *
+   * @param {workbox-routing~matchCallback} match
+   * A callback function that determines whether the route matches a given
+   * `fetch` event by returning a non-falsy value.
+   * @param {workbox-routing~handlerCallback} handler A callback
+   * function that returns a Promise resolving to a Response.
+   * @param {string} [method='GET'] The HTTP method to match the Route
+   * against.
+   */
+  constructor(match, handler, method = defaultMethod) {
+    {
+      finalAssertExports.isType(match, 'function', {
+        moduleName: 'workbox-routing',
+        className: 'Route',
+        funcName: 'constructor',
+        paramName: 'match'
+      });
+      if (method) {
+        finalAssertExports.isOneOf(method, validMethods, {
+          paramName: 'method'
+        });
+      }
+    }
+    // These values are referenced directly by Router so cannot be
+    // altered by minificaton.
+    this.handler = normalizeHandler(handler);
+    this.match = match;
+    this.method = method;
+  }
+  /**
+   *
+   * @param {workbox-routing-handlerCallback} handler A callback
+   * function that returns a Promise resolving to a Response
+   */
+  setCatchHandler(handler) {
+    this.catchHandler = normalizeHandler(handler);
+  }
+}
+
+/*
+  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.
+*/
+/**
+ * RegExpRoute makes it easy to create a regular expression based
+ * {@link workbox-routing.Route}.
+ *
+ * For same-origin requests the RegExp only needs to match part of the URL. For
+ * requests against third-party servers, you must define a RegExp that matches
+ * the start of the URL.
+ *
+ * @memberof workbox-routing
+ * @extends workbox-routing.Route
+ */
+class RegExpRoute extends Route {
+  /**
+   * If the regular expression contains
+   * [capture groups]{@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp#grouping-back-references},
+   * the captured values will be passed to the
+   * {@link workbox-routing~handlerCallback} `params`
+   * argument.
+   *
+   * @param {RegExp} regExp The regular expression to match against URLs.
+   * @param {workbox-routing~handlerCallback} handler A callback
+   * function that returns a Promise resulting in a Response.
+   * @param {string} [method='GET'] The HTTP method to match the Route
+   * against.
+   */
+  constructor(regExp, handler, method) {
+    {
+      finalAssertExports.isInstance(regExp, RegExp, {
+        moduleName: 'workbox-routing',
+        className: 'RegExpRoute',
+        funcName: 'constructor',
+        paramName: 'pattern'
+      });
+    }
+    const match = ({
+      url
+    }) => {
+      const result = regExp.exec(url.href);
+      // Return immediately if there's no match.
+      if (!result) {
+        return;
+      }
+      // Require that the match start at the first character in the URL string
+      // if it's a cross-origin request.
+      // See https://github.com/GoogleChrome/workbox/issues/281 for the context
+      // behind this behavior.
+      if (url.origin !== location.origin && result.index !== 0) {
+        {
+          logger.debug(`The regular expression '${regExp.toString()}' only partially matched ` + `against the cross-origin URL '${url.toString()}'. RegExpRoute's will only ` + `handle cross-origin requests if they match the entire URL.`);
+        }
+        return;
+      }
+      // If the route matches, but there aren't any capture groups defined, then
+      // this will return [], which is truthy and therefore sufficient to
+      // indicate a match.
+      // If there are capture groups, then it will return their values.
+      return result.slice(1);
+    };
+    super(match, handler, method);
+  }
+}
+
+/*
+  Copyright 2018 Google LLC
+
+  Use of this source code is governed by an MIT-style
+  license that can be found in the LICENSE file or at
+  https://opensource.org/licenses/MIT.
+*/
+const getFriendlyURL = url => {
+  const urlObj = new URL(String(url), location.href);
+  // See https://github.com/GoogleChrome/workbox/issues/2323
+  // We want to include everything, except for the origin if it's same-origin.
+  return urlObj.href.replace(new RegExp(`^${location.origin}`), '');
+};
+
+/*
+  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 Router can be used to process a `FetchEvent` using one or more
+ * {@link workbox-routing.Route}, responding with a `Response` if
+ * a matching route exists.
+ *
+ * If no route matches a given a request, the Router will use a "default"
+ * handler if one is defined.
+ *
+ * Should the matching Route throw an error, the Router will use a "catch"
+ * handler if one is defined to gracefully deal with issues and respond with a
+ * Request.
+ *
+ * If a request matches multiple routes, the **earliest** registered route will
+ * be used to respond to the request.
+ *
+ * @memberof workbox-routing
+ */
+class Router {
+  /**
+   * Initializes a new Router.
+   */
+  constructor() {
+    this._routes = new Map();
+    this._defaultHandlerMap = new Map();
+  }
+  /**
+   * @return {Map<string, Array<workbox-routing.Route>>} routes A `Map` of HTTP
+   * method name ('GET', etc.) to an array of all the corresponding `Route`
+   * instances that are registered.
+   */
+  get routes() {
+    return this._routes;
+  }
+  /**
+   * Adds a fetch event listener to respond to events when a route matches
+   * the event's request.
+   */
+  addFetchListener() {
+    // See https://github.com/Microsoft/TypeScript/issues/28357#issuecomment-436484705
+    self.addEventListener('fetch', event => {
+      const {
+        request
+      } = event;
+      const responsePromise = this.handleRequest({
+        request,
+        event
+      });
+      if (responsePromise) {
+        event.respondWith(responsePromise);
+      }
+    });
+  }
+  /**
+   * Adds a message event listener for URLs to cache from the window.
+   * This is useful to cache resources loaded on the page prior to when the
+   * service worker started controlling it.
+   *
+   * The format of the message data sent from the window should be as follows.
+   * Where the `urlsToCache` array may consist of URL strings or an array of
+   * URL string + `requestInit` object (the same as you'd pass to `fetch()`).
+   *
+   * ```
+   * {
+   *   type: 'CACHE_URLS',
+   *   payload: {
+   *     urlsToCache: [
+   *       './script1.js',
+   *       './script2.js',
+   *       ['./script3.js', {mode: 'no-cors'}],
+   *     ],
+   *   },
+   * }
+   * ```
+   */
+  addCacheListener() {
+    // See https://github.com/Microsoft/TypeScript/issues/28357#issuecomment-436484705
+    self.addEventListener('message', event => {
+      // event.data is type 'any'
+      // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access
+      if (event.data && event.data.type === 'CACHE_URLS') {
+        // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
+        const {
+          payload
+        } = event.data;
+        {
+          logger.debug(`Caching URLs from the window`, payload.urlsToCache);
+        }
+        const requestPromises = Promise.all(payload.urlsToCache.map(entry => {
+          if (typeof entry === 'string') {
+            entry = [entry];
+          }
+          const request = new Request(...entry);
+          return this.handleRequest({
+            request,
+            event
+          });
+          // TODO(philipwalton): TypeScript errors without this typecast for
+          // some reason (probably a bug). The real type here should work but
+          // doesn't: `Array<Promise<Response> | undefined>`.
+        })); // TypeScript
+        event.waitUntil(requestPromises);
+        // If a MessageChannel was used, reply to the message on success.
+        if (event.ports && event.ports[0]) {
+          void requestPromises.then(() => event.ports[0].postMessage(true));
+        }
+      }
+    });
+  }
+  /**
+   * Apply the routing rules to a FetchEvent object to get a Response from an
+   * appropriate Route's handler.
+   *
+   * @param {Object} options
+   * @param {Request} options.request The request to handle.
+   * @param {ExtendableEvent} options.event The event that triggered the
+   *     request.
+   * @return {Promise<Response>|undefined} A promise is returned if a
+   *     registered route can handle the request. If there is no matching
+   *     route and there's no `defaultHandler`, `undefined` is returned.
+   */
+  handleRequest({
+    request,
+    event
+  }) {
+    {
+      finalAssertExports.isInstance(request, Request, {
+        moduleName: 'workbox-routing',
+        className: 'Router',
+        funcName: 'handleRequest',
+        paramName: 'options.request'
+      });
+    }
+    const url = new URL(request.url, location.href);
+    if (!url.protocol.startsWith('http')) {
+      {
+        logger.debug(`Workbox Router only supports URLs that start with 'http'.`);
+      }
+      return;
+    }
+    const sameOrigin = url.origin === location.origin;
+    const {
+      params,
+      route
+    } = this.findMatchingRoute({
+      event,
+      request,
+      sameOrigin,
+      url
+    });
+    let handler = route && route.handler;
+    const debugMessages = [];
+    {
+      if (handler) {
+        debugMessages.push([`Found a route to handle this request:`, route]);
+        if (params) {
+          debugMessages.push([`Passing the following params to the route's handler:`, params]);
+        }
+      }
+    }
+    // If we don't have a handler because there was no matching route, then
+    // fall back to defaultHandler if that's defined.
+    const method = request.method;
+    if (!handler && this._defaultHandlerMap.has(method)) {
+      {
+        debugMessages.push(`Failed to find a matching route. Falling ` + `back to the default handler for ${method}.`);
+      }
+      handler = this._defaultHandlerMap.get(method);
+    }
+    if (!handler) {
+      {
+        // No handler so Workbox will do nothing. If logs is set of debug
+        // i.e. verbose, we should print out this information.
+        logger.debug(`No route found for: ${getFriendlyURL(url)}`);
+      }
+      return;
+    }
+    {
+      // We have a handler, meaning Workbox is going to handle the route.
+      // print the routing details to the console.
+      logger.groupCollapsed(`Router is responding to: ${getFriendlyURL(url)}`);
+      debugMessages.forEach(msg => {
+        if (Array.isArray(msg)) {
+          logger.log(...msg);
+        } else {
+          logger.log(msg);
+        }
+      });
+      logger.groupEnd();
+    }
+    // Wrap in try and catch in case the handle method throws a synchronous
+    // error. It should still callback to the catch handler.
+    let responsePromise;
+    try {
+      responsePromise = handler.handle({
+        url,
+        request,
+        event,
+        params
+      });
+    } catch (err) {
+      responsePromise = Promise.reject(err);
+    }
+    // Get route's catch handler, if it exists
+    const catchHandler = route && route.catchHandler;
+    if (responsePromise instanceof Promise && (this._catchHandler || catchHandler)) {
+      responsePromise = responsePromise.catch(async err => {
+        // If there's a route catch handler, process that first
+        if (catchHandler) {
+          {
+            // Still include URL here as it will be async from the console group
+            // and may not make sense without the URL
+            logger.groupCollapsed(`Error thrown when responding to: ` + ` ${getFriendlyURL(url)}. Falling back to route's Catch Handler.`);
+            logger.error(`Error thrown by:`, route);
+            logger.error(err);
+            logger.groupEnd();
+          }
+          try {
+            return await catchHandler.handle({
+              url,
+              request,
+              event,
+              params
+            });
+          } catch (catchErr) {
+            if (catchErr instanceof Error) {
+              err = catchErr;
+            }
+          }
+        }
+        if (this._catchHandler) {
+          {
+            // Still include URL here as it will be async from the console group
+            // and may not make sense without the URL
+            logger.groupCollapsed(`Error thrown when responding to: ` + ` ${getFriendlyURL(url)}. Falling back to global Catch Handler.`);
+            logger.error(`Error thrown by:`, route);
+            logger.error(err);
+            logger.groupEnd();
+          }
+          return this._catchHandler.handle({
+            url,
+            request,
+            event
+          });
+        }
+        throw err;
+      });
+    }
+    return responsePromise;
+  }
+  /**
+   * Checks a request and URL (and optionally an event) against the list of
+   * registered routes, and if there's a match, returns the corresponding
+   * route along with any params generated by the match.
+   *
+   * @param {Object} options
+   * @param {URL} options.url
+   * @param {boolean} options.sameOrigin The result of comparing `url.origin`
+   *     against the current origin.
+   * @param {Request} options.request The request to match.
+   * @param {Event} options.event The corresponding event.
+   * @return {Object} An object with `route` and `params` properties.
+   *     They are populated if a matching route was found or `undefined`
+   *     otherwise.
+   */
+  findMatchingRoute({
+    url,
+    sameOrigin,
+    request,
+    event
+  }) {
+    const routes = this._routes.get(request.method) || [];
+    for (const route of routes) {
+      let params;
+      // route.match returns type any, not possible to change right now.
+      // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
+      const matchResult = route.match({
+        url,
+        sameOrigin,
+        request,
+        event
+      });
+      if (matchResult) {
+        {
+          // Warn developers that using an async matchCallback is almost always
+          // not the right thing to do.
+          if (matchResult instanceof Promise) {
+            logger.warn(`While routing ${getFriendlyURL(url)}, an async ` + `matchCallback function was used. Please convert the ` + `following route to use a synchronous matchCallback function:`, route);
+          }
+        }
+        // See https://github.com/GoogleChrome/workbox/issues/2079
+        // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
+        params = matchResult;
+        if (Array.isArray(params) && params.length === 0) {
+          // Instead of passing an empty array in as params, use undefined.
+          params = undefined;
+        } else if (matchResult.constructor === Object &&
+        // eslint-disable-line
+        Object.keys(matchResult).length === 0) {
+          // Instead of passing an empty object in as params, use undefined.
+          params = undefined;
+        } else if (typeof matchResult === 'boolean') {
+          // For the boolean value true (rather than just something truth-y),
+          // don't set params.
+          // See https://github.com/GoogleChrome/workbox/pull/2134#issuecomment-513924353
+          params = undefined;
+        }
+        // Return early if have a match.
+        return {
+          route,
+          params
+        };
+      }
+    }
+    // If no match was found above, return and empty object.
+    return {};
+  }
+  /**
+   * Define a default `handler` that's called when no routes explicitly
+   * match the incoming request.
+   *
+   * Each HTTP method ('GET', 'POST', etc.) gets its own default handler.
+   *
+   * Without a default handler, unmatched requests will go against the
+   * network as if there were no service worker present.
+   *
+   * @param {workbox-routing~handlerCallback} handler A callback
+   * function that returns a Promise resulting in a Response.
+   * @param {string} [method='GET'] The HTTP method to associate with this
+   * default handler. Each method has its own default.
+   */
+  setDefaultHandler(handler, method = defaultMethod) {
+    this._defaultHandlerMap.set(method, normalizeHandler(handler));
+  }
+  /**
+   * If a Route throws an error while handling a request, this `handler`
+   * will be called and given a chance to provide a response.
+   *
+   * @param {workbox-routing~handlerCallback} handler A callback
+   * function that returns a Promise resulting in a Response.
+   */
+  setCatchHandler(handler) {
+    this._catchHandler = normalizeHandler(handler);
+  }
+  /**
+   * Registers a route with the router.
+   *
+   * @param {workbox-routing.Route} route The route to register.
+   */
+  registerRoute(route) {
+    {
+      finalAssertExports.isType(route, 'object', {
+        moduleName: 'workbox-routing',
+        className: 'Router',
+        funcName: 'registerRoute',
+        paramName: 'route'
+      });
+      finalAssertExports.hasMethod(route, 'match', {
+        moduleName: 'workbox-routing',
+        className: 'Router',
+        funcName: 'registerRoute',
+        paramName: 'route'
+      });
+      finalAssertExports.isType(route.handler, 'object', {
+        moduleName: 'workbox-routing',
+        className: 'Router',
+        funcName: 'registerRoute',
+        paramName: 'route'
+      });
+      finalAssertExports.hasMethod(route.handler, 'handle', {
+        moduleName: 'workbox-routing',
+        className: 'Router',
+        funcName: 'registerRoute',
+        paramName: 'route.handler'
+      });
+      finalAssertExports.isType(route.method, 'string', {
+        moduleName: 'workbox-routing',
+        className: 'Router',
+        funcName: 'registerRoute',
+        paramName: 'route.method'
+      });
+    }
+    if (!this._routes.has(route.method)) {
+      this._routes.set(route.method, []);
+    }
+    // Give precedence to all of the earlier routes by adding this additional
+    // route to the end of the array.
+    this._routes.get(route.method).push(route);
+  }
+  /**
+   * Unregisters a route with the router.
+   *
+   * @param {workbox-routing.Route} route The route to unregister.
+   */
+  unregisterRoute(route) {
+    if (!this._routes.has(route.method)) {
+      throw new WorkboxError('unregister-route-but-not-found-with-method', {
+        method: route.method
+      });
+    }
+    const routeIndex = this._routes.get(route.method).indexOf(route);
+    if (routeIndex > -1) {
+      this._routes.get(route.method).splice(routeIndex, 1);
+    } else {
+      throw new WorkboxError('unregister-route-route-not-registered');
+    }
+  }
+}
+
+/*
+  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.
+*/
+let defaultRouter;
+/**
+ * Creates a new, singleton Router instance if one does not exist. If one
+ * does already exist, that instance is returned.
+ *
+ * @private
+ * @return {Router}
+ */
+const getOrCreateDefaultRouter = () => {
+  if (!defaultRouter) {
+    defaultRouter = new Router();
+    // The helpers that use the default Router assume these listeners exist.
+    defaultRouter.addFetchListener();
+    defaultRouter.addCacheListener();
+  }
+  return defaultRouter;
+};
+
+/*
+  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.
+*/
+/**
+ * Easily register a RegExp, string, or function with a caching
+ * strategy to a singleton Router instance.
+ *
+ * This method will generate a Route for you if needed and
+ * call {@link workbox-routing.Router#registerRoute}.
+ *
+ * @param {RegExp|string|workbox-routing.Route~matchCallback|workbox-routing.Route} capture
+ * If the capture param is a `Route`, all other arguments will be ignored.
+ * @param {workbox-routing~handlerCallback} [handler] A callback
+ * function that returns a Promise resulting in a Response. This parameter
+ * is required if `capture` is not a `Route` object.
+ * @param {string} [method='GET'] The HTTP method to match the Route
+ * against.
+ * @return {workbox-routing.Route} The generated `Route`.
+ *
+ * @memberof workbox-routing
+ */
+function registerRoute(capture, handler, method) {
+  let route;
+  if (typeof capture === 'string') {
+    const captureUrl = new URL(capture, location.href);
+    {
+      if (!(capture.startsWith('/') || capture.startsWith('http'))) {
+        throw new WorkboxError('invalid-string', {
+          moduleName: 'workbox-routing',
+          funcName: 'registerRoute',
+          paramName: 'capture'
+        });
+      }
+      // We want to check if Express-style wildcards are in the pathname only.
+      // TODO: Remove this log message in v4.
+      const valueToCheck = capture.startsWith('http') ? captureUrl.pathname : capture;
+      // See https://github.com/pillarjs/path-to-regexp#parameters
+      const wildcards = '[*:?+]';
+      if (new RegExp(`${wildcards}`).exec(valueToCheck)) {
+        logger.debug(`The '$capture' parameter contains an Express-style wildcard ` + `character (${wildcards}). Strings are now always interpreted as ` + `exact matches; use a RegExp for partial or wildcard matches.`);
+      }
+    }
+    const matchCallback = ({
+      url
+    }) => {
+      {
+        if (url.pathname === captureUrl.pathname && url.origin !== captureUrl.origin) {
+          logger.debug(`${capture} only partially matches the cross-origin URL ` + `${url.toString()}. This route will only handle cross-origin requests ` + `if they match the entire URL.`);
+        }
+      }
+      return url.href === captureUrl.href;
+    };
+    // If `capture` is a string then `handler` and `method` must be present.
+    route = new Route(matchCallback, handler, method);
+  } else if (capture instanceof RegExp) {
+    // If `capture` is a `RegExp` then `handler` and `method` must be present.
+    route = new RegExpRoute(capture, handler, method);
+  } else if (typeof capture === 'function') {
+    // If `capture` is a function then `handler` and `method` must be present.
+    route = new Route(capture, handler, method);
+  } else if (capture instanceof Route) {
+    route = capture;
+  } else {
+    throw new WorkboxError('unsupported-route-type', {
+      moduleName: 'workbox-routing',
+      funcName: 'registerRoute',
+      paramName: 'capture'
+    });
+  }
+  const defaultRouter = getOrCreateDefaultRouter();
+  defaultRouter.registerRoute(route);
+  return route;
+}
+
+/*
+  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.
+*/
+const _cacheNameDetails = {
+  googleAnalytics: 'googleAnalytics',
+  precache: 'precache-v2',
+  prefix: 'workbox',
+  runtime: 'runtime',
+  suffix: typeof registration !== 'undefined' ? registration.scope : ''
+};
+const _createCacheName = cacheName => {
+  return [_cacheNameDetails.prefix, cacheName, _cacheNameDetails.suffix].filter(value => value && value.length > 0).join('-');
+};
+const eachCacheNameDetail = fn => {
+  for (const key of Object.keys(_cacheNameDetails)) {
+    fn(key);
+  }
+};
+const cacheNames = {
+  updateDetails: details => {
+    eachCacheNameDetail(key => {
+      if (typeof details[key] === 'string') {
+        _cacheNameDetails[key] = details[key];
+      }
+    });
+  },
+  getGoogleAnalyticsName: userCacheName => {
+    return userCacheName || _createCacheName(_cacheNameDetails.googleAnalytics);
+  },
+  getPrecacheName: userCacheName => {
+    return userCacheName || _createCacheName(_cacheNameDetails.precache);
+  },
+  getPrefix: () => {
+    return _cacheNameDetails.prefix;
+  },
+  getRuntimeName: userCacheName => {
+    return userCacheName || _createCacheName(_cacheNameDetails.runtime);
+  },
+  getSuffix: () => {
+    return _cacheNameDetails.suffix;
+  }
+};
+
+/*
+  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.
+  void promise.then(() => {});
+}
+
+/*
+  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.
+*/
+// Callbacks to be executed whenever there's a quota error.
+// Can't change Function type right now.
+// eslint-disable-next-line @typescript-eslint/ban-types
+const quotaErrorCallbacks = new Set();
+
+/*
+  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.
+*/
+/**
+ * Adds a function to the set of quotaErrorCallbacks that will be executed if
+ * there's a quota error.
+ *
+ * @param {Function} callback
+ * @memberof workbox-core
+ */
+// Can't change Function type
+// eslint-disable-next-line @typescript-eslint/ban-types
+function registerQuotaErrorCallback(callback) {
+  {
+    finalAssertExports.isType(callback, 'function', {
+      moduleName: 'workbox-core',
+      funcName: 'register',
+      paramName: 'callback'
+    });
+  }
+  quotaErrorCallbacks.add(callback);
+  {
+    logger.log('Registered a callback to respond to quota errors.', callback);
+  }
+}
+
+function _extends() {
+  _extends = Object.assign ? Object.assign.bind() : function (target) {
+    for (var i = 1; i < arguments.length; i++) {
+      var source = arguments[i];
+      for (var key in source) {
+        if (Object.prototype.hasOwnProperty.call(source, key)) {
+          target[key] = source[key];
+        }
+      }
+    }
+    return target;
+  };
+  return _extends.apply(this, arguments);
+}
+
+const instanceOfAny = (object, constructors) => constructors.some(c => object instanceof c);
+let idbProxyableTypes;
+let cursorAdvanceMethods;
+// This is a function to prevent it throwing up in node environments.
+function getIdbProxyableTypes() {
+  return idbProxyableTypes || (idbProxyableTypes = [IDBDatabase, IDBObjectStore, IDBIndex, IDBCursor, IDBTransaction]);
+}
+// This is a function to prevent it throwing up in node environments.
+function getCursorAdvanceMethods() {
+  return cursorAdvanceMethods || (cursorAdvanceMethods = [IDBCursor.prototype.advance, IDBCursor.prototype.continue, IDBCursor.prototype.continuePrimaryKey]);
+}
+const cursorRequestMap = new WeakMap();
+const transactionDoneMap = new WeakMap();
+const transactionStoreNamesMap = new WeakMap();
+const transformCache = new WeakMap();
+const reverseTransformCache = new WeakMap();
+function promisifyRequest(request) {
+  const promise = new Promise((resolve, reject) => {
+    const unlisten = () => {
+      request.removeEventListener('success', success);
+      request.removeEventListener('error', error);
+    };
+    const success = () => {
+      resolve(wrap(request.result));
+      unlisten();
+    };
+    const error = () => {
+      reject(request.error);
+      unlisten();
+    };
+    request.addEventListener('success', success);
+    request.addEventListener('error', error);
+  });
+  promise.then(value => {
+    // Since cursoring reuses the IDBRequest (*sigh*), we cache it for later retrieval
+    // (see wrapFunction).
+    if (value instanceof IDBCursor) {
+      cursorRequestMap.set(value, request);
+    }
+    // Catching to avoid "Uncaught Promise exceptions"
+  }).catch(() => {});
+  // This mapping exists in reverseTransformCache but doesn't doesn't exist in transformCache. This
+  // is because we create many promises from a single IDBRequest.
+  reverseTransformCache.set(promise, request);
+  return promise;
+}
+function cacheDonePromiseForTransaction(tx) {
+  // Early bail if we've already created a done promise for this transaction.
+  if (transactionDoneMap.has(tx)) return;
+  const done = new Promise((resolve, reject) => {
+    const unlisten = () => {
+      tx.removeEventListener('complete', complete);
+      tx.removeEventListener('error', error);
+      tx.removeEventListener('abort', error);
+    };
+    const complete = () => {
+      resolve();
+      unlisten();
+    };
+    const error = () => {
+      reject(tx.error || new DOMException('AbortError', 'AbortError'));
+      unlisten();
+    };
+    tx.addEventListener('complete', complete);
+    tx.addEventListener('error', error);
+    tx.addEventListener('abort', error);
+  });
+  // Cache it for later retrieval.
+  transactionDoneMap.set(tx, done);
+}
+let idbProxyTraps = {
+  get(target, prop, receiver) {
+    if (target instanceof IDBTransaction) {
+      // Special handling for transaction.done.
+      if (prop === 'done') return transactionDoneMap.get(target);
+      // Polyfill for objectStoreNames because of Edge.
+      if (prop === 'objectStoreNames') {
+        return target.objectStoreNames || transactionStoreNamesMap.get(target);
+      }
+      // Make tx.store return the only store in the transaction, or undefined if there are many.
+      if (prop === 'store') {
+        return receiver.objectStoreNames[1] ? undefined : receiver.objectStore(receiver.objectStoreNames[0]);
+      }
+    }
+    // Else transform whatever we get back.
+    return wrap(target[prop]);
+  },
+  set(target, prop, value) {
+    target[prop] = value;
+    return true;
+  },
+  has(target, prop) {
+    if (target instanceof IDBTransaction && (prop === 'done' || prop === 'store')) {
+      return true;
+    }
+    return prop in target;
+  }
+};
+function replaceTraps(callback) {
+  idbProxyTraps = callback(idbProxyTraps);
+}
+function wrapFunction(func) {
+  // Due to expected object equality (which is enforced by the caching in `wrap`), we
+  // only create one new func per func.
+  // Edge doesn't support objectStoreNames (booo), so we polyfill it here.
+  if (func === IDBDatabase.prototype.transaction && !('objectStoreNames' in IDBTransaction.prototype)) {
+    return function (storeNames, ...args) {
+      const tx = func.call(unwrap(this), storeNames, ...args);
+      transactionStoreNamesMap.set(tx, storeNames.sort ? storeNames.sort() : [storeNames]);
+      return wrap(tx);
+    };
+  }
+  // Cursor methods are special, as the behaviour is a little more different to standard IDB. In
+  // IDB, you advance the cursor and wait for a new 'success' on the IDBRequest that gave you the
+  // cursor. It's kinda like a promise that can resolve with many values. That doesn't make sense
+  // with real promises, so each advance methods returns a new promise for the cursor object, or
+  // undefined if the end of the cursor has been reached.
+  if (getCursorAdvanceMethods().includes(func)) {
+    return function (...args) {
+      // Calling the original function with the proxy as 'this' causes ILLEGAL INVOCATION, so we use
+      // the original object.
+      func.apply(unwrap(this), args);
+      return wrap(cursorRequestMap.get(this));
+    };
+  }
+  return function (...args) {
+    // Calling the original function with the proxy as 'this' causes ILLEGAL INVOCATION, so we use
+    // the original object.
+    return wrap(func.apply(unwrap(this), args));
+  };
+}
+function transformCachableValue(value) {
+  if (typeof value === 'function') return wrapFunction(value);
+  // This doesn't return, it just creates a 'done' promise for the transaction,
+  // which is later returned for transaction.done (see idbObjectHandler).
+  if (value instanceof IDBTransaction) cacheDonePromiseForTransaction(value);
+  if (instanceOfAny(value, getIdbProxyableTypes())) return new Proxy(value, idbProxyTraps);
+  // Return the same value back if we're not going to transform it.
+  return value;
+}
+function wrap(value) {
+  // We sometimes generate multiple promises from a single IDBRequest (eg when cursoring), because
+  // IDB is weird and a single IDBRequest can yield many responses, so these can't be cached.
+  if (value instanceof IDBRequest) return promisifyRequest(value);
+  // If we've already transformed this value before, reuse the transformed value.
+  // This is faster, but it also provides object equality.
+  if (transformCache.has(value)) return transformCache.get(value);
+  const newValue = transformCachableValue(value);
+  // Not all types are transformed.
+  // These may be primitive types, so they can't be WeakMap keys.
+  if (newValue !== value) {
+    transformCache.set(value, newValue);
+    reverseTransformCache.set(newValue, value);
+  }
+  return newValue;
+}
+const unwrap = value => reverseTransformCache.get(value);
+
+/**
+ * Open a database.
+ *
+ * @param name Name of the database.
+ * @param version Schema version.
+ * @param callbacks Additional callbacks.
+ */
+function openDB(name, version, {
+  blocked,
+  upgrade,
+  blocking,
+  terminated
+} = {}) {
+  const request = indexedDB.open(name, version);
+  const openPromise = wrap(request);
+  if (upgrade) {
+    request.addEventListener('upgradeneeded', event => {
+      upgrade(wrap(request.result), event.oldVersion, event.newVersion, wrap(request.transaction), event);
+    });
+  }
+  if (blocked) {
+    request.addEventListener('blocked', event => blocked(
+    // Casting due to https://github.com/microsoft/TypeScript-DOM-lib-generator/pull/1405
+    event.oldVersion, event.newVersion, event));
+  }
+  openPromise.then(db => {
+    if (terminated) db.addEventListener('close', () => terminated());
+    if (blocking) {
+      db.addEventListener('versionchange', event => blocking(event.oldVersion, event.newVersion, event));
+    }
+  }).catch(() => {});
+  return openPromise;
+}
+/**
+ * Delete a database.
+ *
+ * @param name Name of the database.
+ */
+function deleteDB(name, {
+  blocked
+} = {}) {
+  const request = indexedDB.deleteDatabase(name);
+  if (blocked) {
+    request.addEventListener('blocked', event => blocked(
+    // Casting due to https://github.com/microsoft/TypeScript-DOM-lib-generator/pull/1405
+    event.oldVersion, event));
+  }
+  return wrap(request).then(() => undefined);
+}
+const readMethods = ['get', 'getKey', 'getAll', 'getAllKeys', 'count'];
+const writeMethods = ['put', 'add', 'delete', 'clear'];
+const cachedMethods = new Map();
+function getMethod(target, prop) {
+  if (!(target instanceof IDBDatabase && !(prop in target) && typeof prop === 'string')) {
+    return;
+  }
+  if (cachedMethods.get(prop)) return cachedMethods.get(prop);
+  const targetFuncName = prop.replace(/FromIndex$/, '');
+  const useIndex = prop !== targetFuncName;
+  const isWrite = writeMethods.includes(targetFuncName);
+  if (
+  // Bail if the target doesn't exist on the target. Eg, getAll isn't in Edge.
+  !(targetFuncName in (useIndex ? IDBIndex : IDBObjectStore).prototype) || !(isWrite || readMethods.includes(targetFuncName))) {
+    return;
+  }
+  const method = async function (storeName, ...args) {
+    // isWrite ? 'readwrite' : undefined gzipps better, but fails in Edge :(
+    const tx = this.transaction(storeName, isWrite ? 'readwrite' : 'readonly');
+    let target = tx.store;
+    if (useIndex) target = target.index(args.shift());
+    // Must reject if op rejects.
+    // If it's a write operation, must reject if tx.done rejects.
+    // Must reject with op rejection first.
+    // Must resolve with op value.
+    // Must handle both promises (no unhandled rejections)
+    return (await Promise.all([target[targetFuncName](...args), isWrite && tx.done]))[0];
+  };
+  cachedMethods.set(prop, method);
+  return method;
+}
+replaceTraps(oldTraps => _extends({}, oldTraps, {
+  get: (target, prop, receiver) => getMethod(target, prop) || oldTraps.get(target, prop, receiver),
+  has: (target, prop) => !!getMethod(target, prop) || oldTraps.has(target, prop)
+}));
+
+// @ts-ignore
+try {
+  self['workbox:expiration:6.5.3'] && _();
+} 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.
+*/
+const DB_NAME = 'workbox-expiration';
+const CACHE_OBJECT_STORE = 'cache-entries';
+const normalizeURL = unNormalizedUrl => {
+  const url = new URL(unNormalizedUrl, location.href);
+  url.hash = '';
+  return url.href;
+};
+/**
+ * Returns the timestamp model.
+ *
+ * @private
+ */
+class CacheTimestampsModel {
+  /**
+   *
+   * @param {string} cacheName
+   *
+   * @private
+   */
+  constructor(cacheName) {
+    this._db = null;
+    this._cacheName = cacheName;
+  }
+  /**
+   * Performs an upgrade of indexedDB.
+   *
+   * @param {IDBPDatabase<CacheDbSchema>} db
+   *
+   * @private
+   */
+  _upgradeDb(db) {
+    // TODO(philipwalton): EdgeHTML doesn't support arrays as a keyPath, so we
+    // have to use the `id` keyPath here and create our own values (a
+    // concatenation of `url + cacheName`) instead of simply using
+    // `keyPath: ['url', 'cacheName']`, which is supported in other browsers.
+    const objStore = db.createObjectStore(CACHE_OBJECT_STORE, {
+      keyPath: 'id'
+    });
+    // TODO(philipwalton): once we don't have to support EdgeHTML, we can
+    // create a single index with the keyPath `['cacheName', 'timestamp']`
+    // instead of doing both these indexes.
+    objStore.createIndex('cacheName', 'cacheName', {
+      unique: false
+    });
+    objStore.createIndex('timestamp', 'timestamp', {
+      unique: false
+    });
+  }
+  /**
+   * Performs an upgrade of indexedDB and deletes deprecated DBs.
+   *
+   * @param {IDBPDatabase<CacheDbSchema>} db
+   *
+   * @private
+   */
+  _upgradeDbAndDeleteOldDbs(db) {
+    this._upgradeDb(db);
+    if (this._cacheName) {
+      void deleteDB(this._cacheName);
+    }
+  }
+  /**
+   * @param {string} url
+   * @param {number} timestamp
+   *
+   * @private
+   */
+  async setTimestamp(url, timestamp) {
+    url = normalizeURL(url);
+    const entry = {
+      url,
+      timestamp,
+      cacheName: this._cacheName,
+      // Creating an ID from the URL and cache name won't be necessary once
+      // Edge switches to Chromium and all browsers we support work with
+      // array keyPaths.
+      id: this._getId(url)
+    };
+    const db = await this.getDb();
+    const tx = db.transaction(CACHE_OBJECT_STORE, 'readwrite', {
+      durability: 'relaxed'
+    });
+    await tx.store.put(entry);
+    await tx.done;
+  }
+  /**
+   * Returns the timestamp stored for a given URL.
+   *
+   * @param {string} url
+   * @return {number | undefined}
+   *
+   * @private
+   */
+  async getTimestamp(url) {
+    const db = await this.getDb();
+    const entry = await db.get(CACHE_OBJECT_STORE, this._getId(url));
+    return entry === null || entry === void 0 ? void 0 : entry.timestamp;
+  }
+  /**
+   * Iterates through all the entries in the object store (from newest to
+   * oldest) and removes entries once either `maxCount` is reached or the
+   * entry's timestamp is less than `minTimestamp`.
+   *
+   * @param {number} minTimestamp
+   * @param {number} maxCount
+   * @return {Array<string>}
+   *
+   * @private
+   */
+  async expireEntries(minTimestamp, maxCount) {
+    const db = await this.getDb();
+    let cursor = await db.transaction(CACHE_OBJECT_STORE).store.index('timestamp').openCursor(null, 'prev');
+    const entriesToDelete = [];
+    let entriesNotDeletedCount = 0;
+    while (cursor) {
+      const result = cursor.value;
+      // TODO(philipwalton): once we can use a multi-key index, we
+      // won't have to check `cacheName` here.
+      if (result.cacheName === this._cacheName) {
+        // Delete an entry if it's older than the max age or
+        // if we already have the max number allowed.
+        if (minTimestamp && result.timestamp < minTimestamp || maxCount && entriesNotDeletedCount >= maxCount) {
+          // TODO(philipwalton): we should be able to delete the
+          // entry right here, but doing so causes an iteration
+          // bug in Safari stable (fixed in TP). Instead we can
+          // store the keys of the entries to delete, and then
+          // delete the separate transactions.
+          // https://github.com/GoogleChrome/workbox/issues/1978
+          // cursor.delete();
+          // We only need to return the URL, not the whole entry.
+          entriesToDelete.push(cursor.value);
+        } else {
+          entriesNotDeletedCount++;
+        }
+      }
+      cursor = await cursor.continue();
+    }
+    // TODO(philipwalton): once the Safari bug in the following issue is fixed,
+    // we should be able to remove this loop and do the entry deletion in the
+    // cursor loop above:
+    // https://github.com/GoogleChrome/workbox/issues/1978
+    const urlsDeleted = [];
+    for (const entry of entriesToDelete) {
+      await db.delete(CACHE_OBJECT_STORE, entry.id);
+      urlsDeleted.push(entry.url);
+    }
+    return urlsDeleted;
+  }
+  /**
+   * Takes a URL and returns an ID that will be unique in the object store.
+   *
+   * @param {string} url
+   * @return {string}
+   *
+   * @private
+   */
+  _getId(url) {
+    // Creating an ID from the URL and cache name won't be necessary once
+    // Edge switches to Chromium and all browsers we support work with
+    // array keyPaths.
+    return this._cacheName + '|' + normalizeURL(url);
+  }
+  /**
+   * Returns an open connection to the database.
+   *
+   * @private
+   */
+  async getDb() {
+    if (!this._db) {
+      this._db = await openDB(DB_NAME, 1, {
+        upgrade: this._upgradeDbAndDeleteOldDbs.bind(this)
+      });
+    }
+    return this._db;
+  }
+}
+
+/*
+  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 `CacheExpiration` class allows you define an expiration and / or
+ * limit on the number of responses stored in a
+ * [`Cache`](https://developer.mozilla.org/en-US/docs/Web/API/Cache).
+ *
+ * @memberof workbox-expiration
+ */
+class CacheExpiration {
+  /**
+   * To construct a new CacheExpiration instance you must provide at least
+   * one of the `config` properties.
+   *
+   * @param {string} cacheName Name of the cache to apply restrictions to.
+   * @param {Object} config
+   * @param {number} [config.maxEntries] The maximum number of entries to cache.
+   * Entries used the least will be removed as the maximum is reached.
+   * @param {number} [config.maxAgeSeconds] The maximum age of an entry before
+   * it's treated as stale and removed.
+   * @param {Object} [config.matchOptions] The [`CacheQueryOptions`](https://developer.mozilla.org/en-US/docs/Web/API/Cache/delete#Parameters)
+   * that will be used when calling `delete()` on the cache.
+   */
+  constructor(cacheName, config = {}) {
+    this._isRunning = false;
+    this._rerunRequested = false;
+    {
+      finalAssertExports.isType(cacheName, 'string', {
+        moduleName: 'workbox-expiration',
+        className: 'CacheExpiration',
+        funcName: 'constructor',
+        paramName: 'cacheName'
+      });
+      if (!(config.maxEntries || config.maxAgeSeconds)) {
+        throw new WorkboxError('max-entries-or-age-required', {
+          moduleName: 'workbox-expiration',
+          className: 'CacheExpiration',
+          funcName: 'constructor'
+        });
+      }
+      if (config.maxEntries) {
+        finalAssertExports.isType(config.maxEntries, 'number', {
+          moduleName: 'workbox-expiration',
+          className: 'CacheExpiration',
+          funcName: 'constructor',
+          paramName: 'config.maxEntries'
+        });
+      }
+      if (config.maxAgeSeconds) {
+        finalAssertExports.isType(config.maxAgeSeconds, 'number', {
+          moduleName: 'workbox-expiration',
+          className: 'CacheExpiration',
+          funcName: 'constructor',
+          paramName: 'config.maxAgeSeconds'
+        });
+      }
+    }
+    this._maxEntries = config.maxEntries;
+    this._maxAgeSeconds = config.maxAgeSeconds;
+    this._matchOptions = config.matchOptions;
+    this._cacheName = cacheName;
+    this._timestampModel = new CacheTimestampsModel(cacheName);
+  }
+  /**
+   * Expires entries for the given cache and given criteria.
+   */
+  async expireEntries() {
+    if (this._isRunning) {
+      this._rerunRequested = true;
+      return;
+    }
+    this._isRunning = true;
+    const minTimestamp = this._maxAgeSeconds ? Date.now() - this._maxAgeSeconds * 1000 : 0;
+    const urlsExpired = await this._timestampModel.expireEntries(minTimestamp, this._maxEntries);
+    // Delete URLs from the cache
+    const cache = await self.caches.open(this._cacheName);
+    for (const url of urlsExpired) {
+      await cache.delete(url, this._matchOptions);
+    }
+    {
+      if (urlsExpired.length > 0) {
+        logger.groupCollapsed(`Expired ${urlsExpired.length} ` + `${urlsExpired.length === 1 ? 'entry' : 'entries'} and removed ` + `${urlsExpired.length === 1 ? 'it' : 'them'} from the ` + `'${this._cacheName}' cache.`);
+        logger.log(`Expired the following ${urlsExpired.length === 1 ? 'URL' : 'URLs'}:`);
+        urlsExpired.forEach(url => logger.log(`    ${url}`));
+        logger.groupEnd();
+      } else {
+        logger.debug(`Cache expiration ran and found no entries to remove.`);
+      }
+    }
+    this._isRunning = false;
+    if (this._rerunRequested) {
+      this._rerunRequested = false;
+      dontWaitFor(this.expireEntries());
+    }
+  }
+  /**
+   * Update the timestamp for the given URL. This ensures the when
+   * removing entries based on maximum entries, most recently used
+   * is accurate or when expiring, the timestamp is up-to-date.
+   *
+   * @param {string} url
+   */
+  async updateTimestamp(url) {
+    {
+      finalAssertExports.isType(url, 'string', {
+        moduleName: 'workbox-expiration',
+        className: 'CacheExpiration',
+        funcName: 'updateTimestamp',
+        paramName: 'url'
+      });
+    }
+    await this._timestampModel.setTimestamp(url, Date.now());
+  }
+  /**
+   * Can be used to check if a URL has expired or not before it's used.
+   *
+   * This requires a look up from IndexedDB, so can be slow.
+   *
+   * Note: This method will not remove the cached entry, call
+   * `expireEntries()` to remove indexedDB and Cache entries.
+   *
+   * @param {string} url
+   * @return {boolean}
+   */
+  async isURLExpired(url) {
+    if (!this._maxAgeSeconds) {
+      {
+        throw new WorkboxError(`expired-test-without-max-age`, {
+          methodName: 'isURLExpired',
+          paramName: 'maxAgeSeconds'
+        });
+      }
+    } else {
+      const timestamp = await this._timestampModel.getTimestamp(url);
+      const expireOlderThan = Date.now() - this._maxAgeSeconds * 1000;
+      return timestamp !== undefined ? timestamp < expireOlderThan : true;
+    }
+  }
+  /**
+   * Removes the IndexedDB object store used to keep track of cache expiration
+   * metadata.
+   */
+  async delete() {
+    // Make sure we don't attempt another rerun if we're called in the middle of
+    // a cache expiration.
+    this._rerunRequested = false;
+    await this._timestampModel.expireEntries(Infinity); // Expires all.
+  }
+}
+
+/*
+  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.
+*/
+/**
+ * This plugin can be used in a `workbox-strategy` to regularly enforce a
+ * limit on the age and / or the number of cached requests.
+ *
+ * It can only be used with `workbox-strategy` instances that have a
+ * [custom `cacheName` property set](/web/tools/workbox/guides/configure-workbox#custom_cache_names_in_strategies).
+ * In other words, it can't be used to expire entries in strategy that uses the
+ * default runtime cache name.
+ *
+ * Whenever a cached response is used or updated, this plugin will look
+ * at the associated cache and remove any old or extra responses.
+ *
+ * When using `maxAgeSeconds`, responses may be used *once* after expiring
+ * because the expiration clean up will not have occurred until *after* the
+ * cached response has been used. If the response has a "Date" header, then
+ * a light weight expiration check is performed and the response will not be
+ * used immediately.
+ *
+ * When using `maxEntries`, the entry least-recently requested will be removed
+ * from the cache first.
+ *
+ * @memberof workbox-expiration
+ */
+class ExpirationPlugin {
+  /**
+   * @param {ExpirationPluginOptions} config
+   * @param {number} [config.maxEntries] The maximum number of entries to cache.
+   * Entries used the least will be removed as the maximum is reached.
+   * @param {number} [config.maxAgeSeconds] The maximum age of an entry before
+   * it's treated as stale and removed.
+   * @param {Object} [config.matchOptions] The [`CacheQueryOptions`](https://developer.mozilla.org/en-US/docs/Web/API/Cache/delete#Parameters)
+   * that will be used when calling `delete()` on the cache.
+   * @param {boolean} [config.purgeOnQuotaError] Whether to opt this cache in to
+   * automatic deletion if the available storage quota has been exceeded.
+   */
+  constructor(config = {}) {
+    /**
+     * A "lifecycle" callback that will be triggered automatically by the
+     * `workbox-strategies` handlers when a `Response` is about to be returned
+     * from a [Cache](https://developer.mozilla.org/en-US/docs/Web/API/Cache) to
+     * the handler. It allows the `Response` to be inspected for freshness and
+     * prevents it from being used if the `Response`'s `Date` header value is
+     * older than the configured `maxAgeSeconds`.
+     *
+     * @param {Object} options
+     * @param {string} options.cacheName Name of the cache the response is in.
+     * @param {Response} options.cachedResponse The `Response` object that's been
+     *     read from a cache and whose freshness should be checked.
+     * @return {Response} Either the `cachedResponse`, if it's
+     *     fresh, or `null` if the `Response` is older than `maxAgeSeconds`.
+     *
+     * @private
+     */
+    this.cachedResponseWillBeUsed = async ({
+      event,
+      request,
+      cacheName,
+      cachedResponse
+    }) => {
+      if (!cachedResponse) {
+        return null;
+      }
+      const isFresh = this._isResponseDateFresh(cachedResponse);
+      // Expire entries to ensure that even if the expiration date has
+      // expired, it'll only be used once.
+      const cacheExpiration = this._getCacheExpiration(cacheName);
+      dontWaitFor(cacheExpiration.expireEntries());
+      // Update the metadata for the request URL to the current timestamp,
+      // but don't `await` it as we don't want to block the response.
+      const updateTimestampDone = cacheExpiration.updateTimestamp(request.url);
+      if (event) {
+        try {
+          event.waitUntil(updateTimestampDone);
+        } catch (error) {
+          {
+            // The event may not be a fetch event; only log the URL if it is.
+            if ('request' in event) {
+              logger.warn(`Unable to ensure service worker stays alive when ` + `updating cache entry for ` + `'${getFriendlyURL(event.request.url)}'.`);
+            }
+          }
+        }
+      }
+      return isFresh ? cachedResponse : null;
+    };
+    /**
+     * A "lifecycle" callback that will be triggered automatically by the
+     * `workbox-strategies` handlers when an entry is added to a cache.
+     *
+     * @param {Object} options
+     * @param {string} options.cacheName Name of the cache that was updated.
+     * @param {string} options.request The Request for the cached entry.
+     *
+     * @private
+     */
+    this.cacheDidUpdate = async ({
+      cacheName,
+      request
+    }) => {
+      {
+        finalAssertExports.isType(cacheName, 'string', {
+          moduleName: 'workbox-expiration',
+          className: 'Plugin',
+          funcName: 'cacheDidUpdate',
+          paramName: 'cacheName'
+        });
+        finalAssertExports.isInstance(request, Request, {
+          moduleName: 'workbox-expiration',
+          className: 'Plugin',
+          funcName: 'cacheDidUpdate',
+          paramName: 'request'
+        });
+      }
+      const cacheExpiration = this._getCacheExpiration(cacheName);
+      await cacheExpiration.updateTimestamp(request.url);
+      await cacheExpiration.expireEntries();
+    };
+    {
+      if (!(config.maxEntries || config.maxAgeSeconds)) {
+        throw new WorkboxError('max-entries-or-age-required', {
+          moduleName: 'workbox-expiration',
+          className: 'Plugin',
+          funcName: 'constructor'
+        });
+      }
+      if (config.maxEntries) {
+        finalAssertExports.isType(config.maxEntries, 'number', {
+          moduleName: 'workbox-expiration',
+          className: 'Plugin',
+          funcName: 'constructor',
+          paramName: 'config.maxEntries'
+        });
+      }
+      if (config.maxAgeSeconds) {
+        finalAssertExports.isType(config.maxAgeSeconds, 'number', {
+          moduleName: 'workbox-expiration',
+          className: 'Plugin',
+          funcName: 'constructor',
+          paramName: 'config.maxAgeSeconds'
+        });
+      }
+    }
+    this._config = config;
+    this._maxAgeSeconds = config.maxAgeSeconds;
+    this._cacheExpirations = new Map();
+    if (config.purgeOnQuotaError) {
+      registerQuotaErrorCallback(() => this.deleteCacheAndMetadata());
+    }
+  }
+  /**
+   * A simple helper method to return a CacheExpiration instance for a given
+   * cache name.
+   *
+   * @param {string} cacheName
+   * @return {CacheExpiration}
+   *
+   * @private
+   */
+  _getCacheExpiration(cacheName) {
+    if (cacheName === cacheNames.getRuntimeName()) {
+      throw new WorkboxError('expire-custom-caches-only');
+    }
+    let cacheExpiration = this._cacheExpirations.get(cacheName);
+    if (!cacheExpiration) {
+      cacheExpiration = new CacheExpiration(cacheName, this._config);
+      this._cacheExpirations.set(cacheName, cacheExpiration);
+    }
+    return cacheExpiration;
+  }
+  /**
+   * @param {Response} cachedResponse
+   * @return {boolean}
+   *
+   * @private
+   */
+  _isResponseDateFresh(cachedResponse) {
+    if (!this._maxAgeSeconds) {
+      // We aren't expiring by age, so return true, it's fresh
+      return true;
+    }
+    // Check if the 'date' header will suffice a quick expiration check.
+    // See https://github.com/GoogleChromeLabs/sw-toolbox/issues/164 for
+    // discussion.
+    const dateHeaderTimestamp = this._getDateHeaderTimestamp(cachedResponse);
+    if (dateHeaderTimestamp === null) {
+      // Unable to parse date, so assume it's fresh.
+      return true;
+    }
+    // If we have a valid headerTime, then our response is fresh iff the
+    // headerTime plus maxAgeSeconds is greater than the current time.
+    const now = Date.now();
+    return dateHeaderTimestamp >= now - this._maxAgeSeconds * 1000;
+  }
+  /**
+   * This method will extract the data header and parse it into a useful
+   * value.
+   *
+   * @param {Response} cachedResponse
+   * @return {number|null}
+   *
+   * @private
+   */
+  _getDateHeaderTimestamp(cachedResponse) {
+    if (!cachedResponse.headers.has('date')) {
+      return null;
+    }
+    const dateHeader = cachedResponse.headers.get('date');
+    const parsedDate = new Date(dateHeader);
+    const headerTime = parsedDate.getTime();
+    // If the Date header was invalid for some reason, parsedDate.getTime()
+    // will return NaN.
+    if (isNaN(headerTime)) {
+      return null;
+    }
+    return headerTime;
+  }
+  /**
+   * This is a helper method that performs two operations:
+   *
+   * - Deletes *all* the underlying Cache instances associated with this plugin
+   * instance, by calling caches.delete() on your behalf.
+   * - Deletes the metadata from IndexedDB used to keep track of expiration
+   * details for each Cache instance.
+   *
+   * When using cache expiration, calling this method is preferable to calling
+   * `caches.delete()` directly, since this will ensure that the IndexedDB
+   * metadata is also cleanly removed and open IndexedDB instances are deleted.
+   *
+   * Note that if you're *not* using cache expiration for a given cache, calling
+   * `caches.delete()` and passing in the cache's name should be sufficient.
+   * There is no Workbox-specific method needed for cleanup in that case.
+   */
+  async deleteCacheAndMetadata() {
+    // Do this one at a time instead of all at once via `Promise.all()` to
+    // reduce the chance of inconsistency if a promise rejects.
+    for (const [cacheName, cacheExpiration] of this._cacheExpirations) {
+      await self.caches.delete(cacheName);
+      await cacheExpiration.delete();
+    }
+    // Reset this._cacheExpirations to its initial state.
+    this._cacheExpirations = new Map();
+  }
+}
+
+/*
+  Copyright 2020 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.
+*/
+function stripParams(fullURL, ignoreParams) {
+  const strippedURL = new URL(fullURL);
+  for (const param of ignoreParams) {
+    strippedURL.searchParams.delete(param);
+  }
+  return strippedURL.href;
+}
+/**
+ * Matches an item in the cache, ignoring specific URL params. This is similar
+ * to the `ignoreSearch` option, but it allows you to ignore just specific
+ * params (while continuing to match on the others).
+ *
+ * @private
+ * @param {Cache} cache
+ * @param {Request} request
+ * @param {Object} matchOptions
+ * @param {Array<string>} ignoreParams
+ * @return {Promise<Response|undefined>}
+ */
+async function cacheMatchIgnoreParams(cache, request, ignoreParams, matchOptions) {
+  const strippedRequestURL = stripParams(request.url, ignoreParams);
+  // If the request doesn't include any ignored params, match as normal.
+  if (request.url === strippedRequestURL) {
+    return cache.match(request, matchOptions);
+  }
+  // Otherwise, match by comparing keys
+  const keysOptions = Object.assign(Object.assign({}, matchOptions), {
+    ignoreSearch: true
+  });
+  const cacheKeys = await cache.keys(request, keysOptions);
+  for (const cacheKey of cacheKeys) {
+    const strippedCacheKeyURL = stripParams(cacheKey.url, ignoreParams);
+    if (strippedRequestURL === strippedCacheKeyURL) {
+      return cache.match(cacheKey, matchOptions);
+    }
+  }
+  return;
+}
+
+/*
+  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
+ */
+class Deferred {
+  /**
+   * Creates a promise and exposes its resolve and reject functions as methods.
+   */
+  constructor() {
+    this.promise = new Promise((resolve, reject) => {
+      this.resolve = resolve;
+      this.reject = reject;
+    });
+  }
+}
+
+/*
+  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.
+*/
+/**
+ * Runs all of the callback functions, one at a time sequentially, in the order
+ * in which they were registered.
+ *
+ * @memberof workbox-core
+ * @private
+ */
+async function executeQuotaErrorCallbacks() {
+  {
+    logger.log(`About to run ${quotaErrorCallbacks.size} ` + `callbacks to clean up caches.`);
+  }
+  for (const callback of quotaErrorCallbacks) {
+    await callback();
+    {
+      logger.log(callback, 'is complete.');
+    }
+  }
+  {
+    logger.log('Finished running callbacks.');
+  }
+}
+
+/*
+  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 a promise that resolves and the passed number of milliseconds.
+ * This utility is an async/await-friendly version of `setTimeout`.
+ *
+ * @param {number} ms
+ * @return {Promise}
+ * @private
+ */
+function timeout(ms) {
+  return new Promise(resolve => setTimeout(resolve, ms));
+}
+
+// @ts-ignore
+try {
+  self['workbox:strategies:6.5.3'] && _();
+} catch (e) {}
+
+/*
+  Copyright 2020 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.
+*/
+function toRequest(input) {
+  return typeof input === 'string' ? new Request(input) : input;
+}
+/**
+ * A class created every time a Strategy instance instance calls
+ * {@link workbox-strategies.Strategy~handle} or
+ * {@link workbox-strategies.Strategy~handleAll} that wraps all fetch and
+ * cache actions around plugin callbacks and keeps track of when the strategy
+ * is "done" (i.e. all added `event.waitUntil()` promises have resolved).
+ *
+ * @memberof workbox-strategies
+ */
+class StrategyHandler {
+  /**
+   * Creates a new instance associated with the passed strategy and event
+   * that's handling the request.
+   *
+   * The constructor also initializes the state that will be passed to each of
+   * the plugins handling this request.
+   *
+   * @param {workbox-strategies.Strategy} strategy
+   * @param {Object} options
+   * @param {Request|string} options.request A request to run this strategy for.
+   * @param {ExtendableEvent} options.event The event associated with the
+   *     request.
+   * @param {URL} [options.url]
+   * @param {*} [options.params] The return value from the
+   *     {@link workbox-routing~matchCallback} (if applicable).
+   */
+  constructor(strategy, options) {
+    this._cacheKeys = {};
+    /**
+     * The request the strategy is performing (passed to the strategy's
+     * `handle()` or `handleAll()` method).
+     * @name request
+     * @instance
+     * @type {Request}
+     * @memberof workbox-strategies.StrategyHandler
+     */
+    /**
+     * The event associated with this request.
+     * @name event
+     * @instance
+     * @type {ExtendableEvent}
+     * @memberof workbox-strategies.StrategyHandler
+     */
+    /**
+     * A `URL` instance of `request.url` (if passed to the strategy's
+     * `handle()` or `handleAll()` method).
+     * Note: the `url` param will be present if the strategy was invoked
+     * from a workbox `Route` object.
+     * @name url
+     * @instance
+     * @type {URL|undefined}
+     * @memberof workbox-strategies.StrategyHandler
+     */
+    /**
+     * A `param` value (if passed to the strategy's
+     * `handle()` or `handleAll()` method).
+     * Note: the `param` param will be present if the strategy was invoked
+     * from a workbox `Route` object and the
+     * {@link workbox-routing~matchCallback} returned
+     * a truthy value (it will be that value).
+     * @name params
+     * @instance
+     * @type {*|undefined}
+     * @memberof workbox-strategies.StrategyHandler
+     */
+    {
+      finalAssertExports.isInstance(options.event, ExtendableEvent, {
+        moduleName: 'workbox-strategies',
+        className: 'StrategyHandler',
+        funcName: 'constructor',
+        paramName: 'options.event'
+      });
+    }
+    Object.assign(this, options);
+    this.event = options.event;
+    this._strategy = strategy;
+    this._handlerDeferred = new Deferred();
+    this._extendLifetimePromises = [];
+    // Copy the plugins list (since it's mutable on the strategy),
+    // so any mutations don't affect this handler instance.
+    this._plugins = [...strategy.plugins];
+    this._pluginStateMap = new Map();
+    for (const plugin of this._plugins) {
+      this._pluginStateMap.set(plugin, {});
+    }
+    this.event.waitUntil(this._handlerDeferred.promise);
+  }
+  /**
+   * Fetches a given request (and invokes any applicable plugin callback
+   * methods) using the `fetchOptions` (for non-navigation requests) and
+   * `plugins` defined on the `Strategy` object.
+   *
+   * The following plugin lifecycle methods are invoked when using this method:
+   * - `requestWillFetch()`
+   * - `fetchDidSucceed()`
+   * - `fetchDidFail()`
+   *
+   * @param {Request|string} input The URL or request to fetch.
+   * @return {Promise<Response>}
+   */
+  async fetch(input) {
+    const {
+      event
+    } = this;
+    let request = toRequest(input);
+    if (request.mode === 'navigate' && event instanceof FetchEvent && event.preloadResponse) {
+      const possiblePreloadResponse = await event.preloadResponse;
+      if (possiblePreloadResponse) {
+        {
+          logger.log(`Using a preloaded navigation response for ` + `'${getFriendlyURL(request.url)}'`);
+        }
+        return possiblePreloadResponse;
+      }
+    }
+    // If there is a fetchDidFail plugin, we need to save a clone of the
+    // original request before it's either modified by a requestWillFetch
+    // plugin or before the original request's body is consumed via fetch().
+    const originalRequest = this.hasCallback('fetchDidFail') ? request.clone() : null;
+    try {
+      for (const cb of this.iterateCallbacks('requestWillFetch')) {
+        request = await cb({
+          request: request.clone(),
+          event
+        });
+      }
+    } catch (err) {
+      if (err instanceof Error) {
+        throw new WorkboxError('plugin-error-request-will-fetch', {
+          thrownErrorMessage: err.message
+        });
+      }
+    }
+    // The request can be altered by plugins with `requestWillFetch` making
+    // the original request (most likely from a `fetch` event) different
+    // from the Request we make. Pass both to `fetchDidFail` to aid debugging.
+    const pluginFilteredRequest = request.clone();
+    try {
+      let fetchResponse;
+      // See https://github.com/GoogleChrome/workbox/issues/1796
+      fetchResponse = await fetch(request, request.mode === 'navigate' ? undefined : this._strategy.fetchOptions);
+      if ("development" !== 'production') {
+        logger.debug(`Network request for ` + `'${getFriendlyURL(request.url)}' returned a response with ` + `status '${fetchResponse.status}'.`);
+      }
+      for (const callback of this.iterateCallbacks('fetchDidSucceed')) {
+        fetchResponse = await callback({
+          event,
+          request: pluginFilteredRequest,
+          response: fetchResponse
+        });
+      }
+      return fetchResponse;
+    } catch (error) {
+      {
+        logger.log(`Network request for ` + `'${getFriendlyURL(request.url)}' threw an error.`, error);
+      }
+      // `originalRequest` will only exist if a `fetchDidFail` callback
+      // is being used (see above).
+      if (originalRequest) {
+        await this.runCallbacks('fetchDidFail', {
+          error: error,
+          event,
+          originalRequest: originalRequest.clone(),
+          request: pluginFilteredRequest.clone()
+        });
+      }
+      throw error;
+    }
+  }
+  /**
+   * Calls `this.fetch()` and (in the background) runs `this.cachePut()` on
+   * the response generated by `this.fetch()`.
+   *
+   * The call to `this.cachePut()` automatically invokes `this.waitUntil()`,
+   * so you do not have to manually call `waitUntil()` on the event.
+   *
+   * @param {Request|string} input The request or URL to fetch and cache.
+   * @return {Promise<Response>}
+   */
+  async fetchAndCachePut(input) {
+    const response = await this.fetch(input);
+    const responseClone = response.clone();
+    void this.waitUntil(this.cachePut(input, responseClone));
+    return response;
+  }
+  /**
+   * Matches a request from the cache (and invokes any applicable plugin
+   * callback methods) using the `cacheName`, `matchOptions`, and `plugins`
+   * defined on the strategy object.
+   *
+   * The following plugin lifecycle methods are invoked when using this method:
+   * - cacheKeyWillByUsed()
+   * - cachedResponseWillByUsed()
+   *
+   * @param {Request|string} key The Request or URL to use as the cache key.
+   * @return {Promise<Response|undefined>} A matching response, if found.
+   */
+  async cacheMatch(key) {
+    const request = toRequest(key);
+    let cachedResponse;
+    const {
+      cacheName,
+      matchOptions
+    } = this._strategy;
+    const effectiveRequest = await this.getCacheKey(request, 'read');
+    const multiMatchOptions = Object.assign(Object.assign({}, matchOptions), {
+      cacheName
+    });
+    cachedResponse = await caches.match(effectiveRequest, multiMatchOptions);
+    {
+      if (cachedResponse) {
+        logger.debug(`Found a cached response in '${cacheName}'.`);
+      } else {
+        logger.debug(`No cached response found in '${cacheName}'.`);
+      }
+    }
+    for (const callback of this.iterateCallbacks('cachedResponseWillBeUsed')) {
+      cachedResponse = (await callback({
+        cacheName,
+        matchOptions,
+        cachedResponse,
+        request: effectiveRequest,
+        event: this.event
+      })) || undefined;
+    }
+    return cachedResponse;
+  }
+  /**
+   * Puts a request/response pair in the cache (and invokes any applicable
+   * plugin callback methods) using the `cacheName` and `plugins` defined on
+   * the strategy object.
+   *
+   * The following plugin lifecycle methods are invoked when using this method:
+   * - cacheKeyWillByUsed()
+   * - cacheWillUpdate()
+   * - cacheDidUpdate()
+   *
+   * @param {Request|string} key The request or URL to use as the cache key.
+   * @param {Response} response The response to cache.
+   * @return {Promise<boolean>} `false` if a cacheWillUpdate caused the response
+   * not be cached, and `true` otherwise.
+   */
+  async cachePut(key, response) {
+    const request = toRequest(key);
+    // Run in the next task to avoid blocking other cache reads.
+    // https://github.com/w3c/ServiceWorker/issues/1397
+    await timeout(0);
+    const effectiveRequest = await this.getCacheKey(request, 'write');
+    {
+      if (effectiveRequest.method && effectiveRequest.method !== 'GET') {
+        throw new WorkboxError('attempt-to-cache-non-get-request', {
+          url: getFriendlyURL(effectiveRequest.url),
+          method: effectiveRequest.method
+        });
+      }
+      // See https://github.com/GoogleChrome/workbox/issues/2818
+      const vary = response.headers.get('Vary');
+      if (vary) {
+        logger.debug(`The response for ${getFriendlyURL(effectiveRequest.url)} ` + `has a 'Vary: ${vary}' header. ` + `Consider setting the {ignoreVary: true} option on your strategy ` + `to ensure cache matching and deletion works as expected.`);
+      }
+    }
+    if (!response) {
+      {
+        logger.error(`Cannot cache non-existent response for ` + `'${getFriendlyURL(effectiveRequest.url)}'.`);
+      }
+      throw new WorkboxError('cache-put-with-no-response', {
+        url: getFriendlyURL(effectiveRequest.url)
+      });
+    }
+    const responseToCache = await this._ensureResponseSafeToCache(response);
+    if (!responseToCache) {
+      {
+        logger.debug(`Response '${getFriendlyURL(effectiveRequest.url)}' ` + `will not be cached.`, responseToCache);
+      }
+      return false;
+    }
+    const {
+      cacheName,
+      matchOptions
+    } = this._strategy;
+    const cache = await self.caches.open(cacheName);
+    const hasCacheUpdateCallback = this.hasCallback('cacheDidUpdate');
+    const oldResponse = hasCacheUpdateCallback ? await cacheMatchIgnoreParams(
+    // TODO(philipwalton): the `__WB_REVISION__` param is a precaching
+    // feature. Consider into ways to only add this behavior if using
+    // precaching.
+    cache, effectiveRequest.clone(), ['__WB_REVISION__'], matchOptions) : null;
+    {
+      logger.debug(`Updating the '${cacheName}' cache with a new Response ` + `for ${getFriendlyURL(effectiveRequest.url)}.`);
+    }
+    try {
+      await cache.put(effectiveRequest, hasCacheUpdateCallback ? responseToCache.clone() : responseToCache);
+    } catch (error) {
+      if (error instanceof Error) {
+        // See https://developer.mozilla.org/en-US/docs/Web/API/DOMException#exception-QuotaExceededError
+        if (error.name === 'QuotaExceededError') {
+          await executeQuotaErrorCallbacks();
+        }
+        throw error;
+      }
+    }
+    for (const callback of this.iterateCallbacks('cacheDidUpdate')) {
+      await callback({
+        cacheName,
+        oldResponse,
+        newResponse: responseToCache.clone(),
+        request: effectiveRequest,
+        event: this.event
+      });
+    }
+    return true;
+  }
+  /**
+   * Checks the list of plugins for the `cacheKeyWillBeUsed` callback, and
+   * executes any of those callbacks found in sequence. The final `Request`
+   * object returned by the last plugin is treated as the cache key for cache
+   * reads and/or writes. If no `cacheKeyWillBeUsed` plugin callbacks have
+   * been registered, the passed request is returned unmodified
+   *
+   * @param {Request} request
+   * @param {string} mode
+   * @return {Promise<Request>}
+   */
+  async getCacheKey(request, mode) {
+    const key = `${request.url} | ${mode}`;
+    if (!this._cacheKeys[key]) {
+      let effectiveRequest = request;
+      for (const callback of this.iterateCallbacks('cacheKeyWillBeUsed')) {
+        effectiveRequest = toRequest(await callback({
+          mode,
+          request: effectiveRequest,
+          event: this.event,
+          // params has a type any can't change right now.
+          params: this.params // eslint-disable-line
+        }));
+      }
+
+      this._cacheKeys[key] = effectiveRequest;
+    }
+    return this._cacheKeys[key];
+  }
+  /**
+   * Returns true if the strategy has at least one plugin with the given
+   * callback.
+   *
+   * @param {string} name The name of the callback to check for.
+   * @return {boolean}
+   */
+  hasCallback(name) {
+    for (const plugin of this._strategy.plugins) {
+      if (name in plugin) {
+        return true;
+      }
+    }
+    return false;
+  }
+  /**
+   * Runs all plugin callbacks matching the given name, in order, passing the
+   * given param object (merged ith the current plugin state) as the only
+   * argument.
+   *
+   * Note: since this method runs all plugins, it's not suitable for cases
+   * where the return value of a callback needs to be applied prior to calling
+   * the next callback. See
+   * {@link workbox-strategies.StrategyHandler#iterateCallbacks}
+   * below for how to handle that case.
+   *
+   * @param {string} name The name of the callback to run within each plugin.
+   * @param {Object} param The object to pass as the first (and only) param
+   *     when executing each callback. This object will be merged with the
+   *     current plugin state prior to callback execution.
+   */
+  async runCallbacks(name, param) {
+    for (const callback of this.iterateCallbacks(name)) {
+      // TODO(philipwalton): not sure why `any` is needed. It seems like
+      // this should work with `as WorkboxPluginCallbackParam[C]`.
+      await callback(param);
+    }
+  }
+  /**
+   * Accepts a callback and returns an iterable of matching plugin callbacks,
+   * where each callback is wrapped with the current handler state (i.e. when
+   * you call each callback, whatever object parameter you pass it will
+   * be merged with the plugin's current state).
+   *
+   * @param {string} name The name fo the callback to run
+   * @return {Array<Function>}
+   */
+  *iterateCallbacks(name) {
+    for (const plugin of this._strategy.plugins) {
+      if (typeof plugin[name] === 'function') {
+        const state = this._pluginStateMap.get(plugin);
+        const statefulCallback = param => {
+          const statefulParam = Object.assign(Object.assign({}, param), {
+            state
+          });
+          // TODO(philipwalton): not sure why `any` is needed. It seems like
+          // this should work with `as WorkboxPluginCallbackParam[C]`.
+          return plugin[name](statefulParam);
+        };
+        yield statefulCallback;
+      }
+    }
+  }
+  /**
+   * Adds a promise to the
+   * [extend lifetime promises]{@link https://w3c.github.io/ServiceWorker/#extendableevent-extend-lifetime-promises}
+   * of the event event associated with the request being handled (usually a
+   * `FetchEvent`).
+   *
+   * Note: you can await
+   * {@link workbox-strategies.StrategyHandler~doneWaiting}
+   * to know when all added promises have settled.
+   *
+   * @param {Promise} promise A promise to add to the extend lifetime promises
+   *     of the event that triggered the request.
+   */
+  waitUntil(promise) {
+    this._extendLifetimePromises.push(promise);
+    return promise;
+  }
+  /**
+   * Returns a promise that resolves once all promises passed to
+   * {@link workbox-strategies.StrategyHandler~waitUntil}
+   * have settled.
+   *
+   * Note: any work done after `doneWaiting()` settles should be manually
+   * passed to an event's `waitUntil()` method (not this handler's
+   * `waitUntil()` method), otherwise the service worker thread my be killed
+   * prior to your work completing.
+   */
+  async doneWaiting() {
+    let promise;
+    while (promise = this._extendLifetimePromises.shift()) {
+      await promise;
+    }
+  }
+  /**
+   * Stops running the strategy and immediately resolves any pending
+   * `waitUntil()` promises.
+   */
+  destroy() {
+    this._handlerDeferred.resolve(null);
+  }
+  /**
+   * This method will call cacheWillUpdate on the available plugins (or use
+   * status === 200) to determine if the Response is safe and valid to cache.
+   *
+   * @param {Request} options.request
+   * @param {Response} options.response
+   * @return {Promise<Response|undefined>}
+   *
+   * @private
+   */
+  async _ensureResponseSafeToCache(response) {
+    let responseToCache = response;
+    let pluginsUsed = false;
+    for (const callback of this.iterateCallbacks('cacheWillUpdate')) {
+      responseToCache = (await callback({
+        request: this.request,
+        response: responseToCache,
+        event: this.event
+      })) || undefined;
+      pluginsUsed = true;
+      if (!responseToCache) {
+        break;
+      }
+    }
+    if (!pluginsUsed) {
+      if (responseToCache && responseToCache.status !== 200) {
+        responseToCache = undefined;
+      }
+      {
+        if (responseToCache) {
+          if (responseToCache.status !== 200) {
+            if (responseToCache.status === 0) {
+              logger.warn(`The response for '${this.request.url}' ` + `is an opaque response. The caching strategy that you're ` + `using will not cache opaque responses by default.`);
+            } else {
+              logger.debug(`The response for '${this.request.url}' ` + `returned a status code of '${response.status}' and won't ` + `be cached as a result.`);
+            }
+          }
+        }
+      }
+    }
+    return responseToCache;
+  }
+}
+
+/*
+  Copyright 2020 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.
+*/
+/**
+ * An abstract base class that all other strategy classes must extend from:
+ *
+ * @memberof workbox-strategies
+ */
+class Strategy {
+  /**
+   * Creates a new instance of the strategy and sets all documented option
+   * properties as public instance properties.
+   *
+   * Note: if a custom strategy class extends the base Strategy class and does
+   * not need more than these properties, it does not need to define its own
+   * constructor.
+   *
+   * @param {Object} [options]
+   * @param {string} [options.cacheName] Cache name to store and retrieve
+   * requests. Defaults to the cache names provided by
+   * {@link workbox-core.cacheNames}.
+   * @param {Array<Object>} [options.plugins] [Plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}
+   * to use in conjunction with this caching strategy.
+   * @param {Object} [options.fetchOptions] Values passed along to the
+   * [`init`](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Parameters)
+   * of [non-navigation](https://github.com/GoogleChrome/workbox/issues/1796)
+   * `fetch()` requests made by this strategy.
+   * @param {Object} [options.matchOptions] The
+   * [`CacheQueryOptions`]{@link https://w3c.github.io/ServiceWorker/#dictdef-cachequeryoptions}
+   * for any `cache.match()` or `cache.put()` calls made by this strategy.
+   */
+  constructor(options = {}) {
+    /**
+     * Cache name to store and retrieve
+     * requests. Defaults to the cache names provided by
+     * {@link workbox-core.cacheNames}.
+     *
+     * @type {string}
+     */
+    this.cacheName = cacheNames.getRuntimeName(options.cacheName);
+    /**
+     * The list
+     * [Plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}
+     * used by this strategy.
+     *
+     * @type {Array<Object>}
+     */
+    this.plugins = options.plugins || [];
+    /**
+     * Values passed along to the
+     * [`init`]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Parameters}
+     * of all fetch() requests made by this strategy.
+     *
+     * @type {Object}
+     */
+    this.fetchOptions = options.fetchOptions;
+    /**
+     * The
+     * [`CacheQueryOptions`]{@link https://w3c.github.io/ServiceWorker/#dictdef-cachequeryoptions}
+     * for any `cache.match()` or `cache.put()` calls made by this strategy.
+     *
+     * @type {Object}
+     */
+    this.matchOptions = options.matchOptions;
+  }
+  /**
+   * Perform a request strategy and returns a `Promise` that will resolve with
+   * a `Response`, invoking all relevant plugin callbacks.
+   *
+   * When a strategy instance is registered with a Workbox
+   * {@link workbox-routing.Route}, this method is automatically
+   * called when the route matches.
+   *
+   * Alternatively, this method can be used in a standalone `FetchEvent`
+   * listener by passing it to `event.respondWith()`.
+   *
+   * @param {FetchEvent|Object} options A `FetchEvent` or an object with the
+   *     properties listed below.
+   * @param {Request|string} options.request A request to run this strategy for.
+   * @param {ExtendableEvent} options.event The event associated with the
+   *     request.
+   * @param {URL} [options.url]
+   * @param {*} [options.params]
+   */
+  handle(options) {
+    const [responseDone] = this.handleAll(options);
+    return responseDone;
+  }
+  /**
+   * Similar to {@link workbox-strategies.Strategy~handle}, but
+   * instead of just returning a `Promise` that resolves to a `Response` it
+   * it will return an tuple of `[response, done]` promises, where the former
+   * (`response`) is equivalent to what `handle()` returns, and the latter is a
+   * Promise that will resolve once any promises that were added to
+   * `event.waitUntil()` as part of performing the strategy have completed.
+   *
+   * You can await the `done` promise to ensure any extra work performed by
+   * the strategy (usually caching responses) completes successfully.
+   *
+   * @param {FetchEvent|Object} options A `FetchEvent` or an object with the
+   *     properties listed below.
+   * @param {Request|string} options.request A request to run this strategy for.
+   * @param {ExtendableEvent} options.event The event associated with the
+   *     request.
+   * @param {URL} [options.url]
+   * @param {*} [options.params]
+   * @return {Array<Promise>} A tuple of [response, done]
+   *     promises that can be used to determine when the response resolves as
+   *     well as when the handler has completed all its work.
+   */
+  handleAll(options) {
+    // Allow for flexible options to be passed.
+    if (options instanceof FetchEvent) {
+      options = {
+        event: options,
+        request: options.request
+      };
+    }
+    const event = options.event;
+    const request = typeof options.request === 'string' ? new Request(options.request) : options.request;
+    const params = 'params' in options ? options.params : undefined;
+    const handler = new StrategyHandler(this, {
+      event,
+      request,
+      params
+    });
+    const responseDone = this._getResponse(handler, request, event);
+    const handlerDone = this._awaitComplete(responseDone, handler, request, event);
+    // Return an array of promises, suitable for use with Promise.all().
+    return [responseDone, handlerDone];
+  }
+  async _getResponse(handler, request, event) {
+    await handler.runCallbacks('handlerWillStart', {
+      event,
+      request
+    });
+    let response = undefined;
+    try {
+      response = await this._handle(request, handler);
+      // The "official" Strategy subclasses all throw this error automatically,
+      // but in case a third-party Strategy doesn't, ensure that we have a
+      // consistent failure when there's no response or an error response.
+      if (!response || response.type === 'error') {
+        throw new WorkboxError('no-response', {
+          url: request.url
+        });
+      }
+    } catch (error) {
+      if (error instanceof Error) {
+        for (const callback of handler.iterateCallbacks('handlerDidError')) {
+          response = await callback({
+            error,
+            event,
+            request
+          });
+          if (response) {
+            break;
+          }
+        }
+      }
+      if (!response) {
+        throw error;
+      } else {
+        logger.log(`While responding to '${getFriendlyURL(request.url)}', ` + `an ${error instanceof Error ? error.toString() : ''} error occurred. Using a fallback response provided by ` + `a handlerDidError plugin.`);
+      }
+    }
+    for (const callback of handler.iterateCallbacks('handlerWillRespond')) {
+      response = await callback({
+        event,
+        request,
+        response
+      });
+    }
+    return response;
+  }
+  async _awaitComplete(responseDone, handler, request, event) {
+    let response;
+    let error;
+    try {
+      response = await responseDone;
+    } catch (error) {
+      // Ignore errors, as response errors should be caught via the `response`
+      // promise above. The `done` promise will only throw for errors in
+      // promises passed to `handler.waitUntil()`.
+    }
+    try {
+      await handler.runCallbacks('handlerDidRespond', {
+        event,
+        request,
+        response
+      });
+      await handler.doneWaiting();
+    } catch (waitUntilError) {
+      if (waitUntilError instanceof Error) {
+        error = waitUntilError;
+      }
+    }
+    await handler.runCallbacks('handlerDidComplete', {
+      event,
+      request,
+      response,
+      error: error
+    });
+    handler.destroy();
+    if (error) {
+      throw error;
+    }
+  }
+}
+/**
+ * Classes extending the `Strategy` based class should implement this method,
+ * and leverage the {@link workbox-strategies.StrategyHandler}
+ * arg to perform all fetching and cache logic, which will ensure all relevant
+ * cache, cache options, fetch options and plugins are used (per the current
+ * strategy instance).
+ *
+ * @name _handle
+ * @instance
+ * @abstract
+ * @function
+ * @param {Request} request
+ * @param {workbox-strategies.StrategyHandler} handler
+ * @return {Promise<Response>}
+ *
+ * @memberof workbox-strategies.Strategy
+ */
+
+/*
+  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.
+*/
+const messages = {
+  strategyStart: (strategyName, request) => `Using ${strategyName} to respond to '${getFriendlyURL(request.url)}'`,
+  printFinalResponse: response => {
+    if (response) {
+      logger.groupCollapsed(`View the final response here.`);
+      logger.log(response || '[No response returned]');
+      logger.groupEnd();
+    }
+  }
+};
+
+/*
+  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.
+*/
+/**
+ * An implementation of a [cache-first](https://developer.chrome.com/docs/workbox/caching-strategies-overview/#cache-first-falling-back-to-network)
+ * request strategy.
+ *
+ * A cache first strategy is useful for assets that have been revisioned,
+ * such as URLs like `/styles/example.a8f5f1.css`, since they
+ * can be cached for long periods of time.
+ *
+ * If the network request fails, and there is no cache match, this will throw
+ * a `WorkboxError` exception.
+ *
+ * @extends workbox-strategies.Strategy
+ * @memberof workbox-strategies
+ */
+class CacheFirst extends Strategy {
+  /**
+   * @private
+   * @param {Request|string} request A request to run this strategy for.
+   * @param {workbox-strategies.StrategyHandler} handler The event that
+   *     triggered the request.
+   * @return {Promise<Response>}
+   */
+  async _handle(request, handler) {
+    const logs = [];
+    {
+      finalAssertExports.isInstance(request, Request, {
+        moduleName: 'workbox-strategies',
+        className: this.constructor.name,
+        funcName: 'makeRequest',
+        paramName: 'request'
+      });
+    }
+    let response = await handler.cacheMatch(request);
+    let error = undefined;
+    if (!response) {
+      {
+        logs.push(`No response found in the '${this.cacheName}' cache. ` + `Will respond with a network request.`);
+      }
+      try {
+        response = await handler.fetchAndCachePut(request);
+      } catch (err) {
+        if (err instanceof Error) {
+          error = err;
+        }
+      }
+      {
+        if (response) {
+          logs.push(`Got response from network.`);
+        } else {
+          logs.push(`Unable to get a response from the network.`);
+        }
+      }
+    } else {
+      {
+        logs.push(`Found a cached response in the '${this.cacheName}' cache.`);
+      }
+    }
+    {
+      logger.groupCollapsed(messages.strategyStart(this.constructor.name, request));
+      for (const log of logs) {
+        logger.log(log);
+      }
+      messages.printFinalResponse(response);
+      logger.groupEnd();
+    }
+    if (!response) {
+      throw new WorkboxError('no-response', {
+        url: request.url,
+        error
+      });
+    }
+    return response;
+  }
+}
+
+/*
+  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.
+*/
+/**
+ * Claim any currently available clients once the service worker
+ * becomes active. This is normally used in conjunction with `skipWaiting()`.
+ *
+ * @memberof workbox-core
+ */
+function clientsClaim() {
+  self.addEventListener('activate', () => self.clients.claim());
+}
+
+self.skipWaiting();
+clientsClaim();
+registerRoute(/^.*\/(apps|core)(\/[a-z-_]+)?\/preview.*/i, new CacheFirst({
+  "cacheName": "previews",
+  plugins: [new ExpirationPlugin({
+    maxAgeSeconds: 604800,
+    maxEntries: 10000
+  })]
+}), 'GET');
+self.__WB_DISABLE_DEV_LOGS = true;