| {"version":3,"file":"workbox-routing.prod.js","sources":["../_version.mjs","../utils/constants.mjs","../utils/normalizeHandler.mjs","../Route.mjs","../NavigationRoute.mjs","../RegExpRoute.mjs","../Router.mjs","../utils/getOrCreateDefaultRouter.mjs","../registerNavigationRoute.mjs","../registerRoute.mjs","../setCatchHandler.mjs","../setDefaultHandler.mjs"],"sourcesContent":["try{self['workbox:routing:4.3.1']&&_()}catch(e){}// eslint-disable-line","/*\n Copyright 2018 Google LLC\n\n Use of this source code is governed by an MIT-style\n license that can be found in the LICENSE file or at\n https://opensource.org/licenses/MIT.\n*/\n\nimport '../_version.mjs';\n\n/**\n * The default HTTP method, 'GET', used when there's no specific method\n * configured for a route.\n *\n * @type {string}\n *\n * @private\n */\nexport const defaultMethod = 'GET';\n\n/**\n * The list of valid HTTP methods associated with requests that could be routed.\n *\n * @type {Array<string>}\n *\n * @private\n */\nexport const validMethods = [\n 'DELETE',\n 'GET',\n 'HEAD',\n 'PATCH',\n 'POST',\n 'PUT',\n];\n","/*\n Copyright 2018 Google LLC\n\n Use of this source code is governed by an MIT-style\n license that can be found in the LICENSE file or at\n https://opensource.org/licenses/MIT.\n*/\n\nimport {assert} from 'workbox-core/_private/assert.mjs';\nimport '../_version.mjs';\n\n/**\n * @param {function()|Object} handler Either a function, or an object with a\n * 'handle' method.\n * @return {Object} An object with a handle method.\n *\n * @private\n */\nexport const normalizeHandler = (handler) => {\n if (handler && typeof handler === 'object') {\n if (process.env.NODE_ENV !== 'production') {\n assert.hasMethod(handler, 'handle', {\n moduleName: 'workbox-routing',\n className: 'Route',\n funcName: 'constructor',\n paramName: 'handler',\n });\n }\n return handler;\n } else {\n if (process.env.NODE_ENV !== 'production') {\n assert.isType(handler, 'function', {\n moduleName: 'workbox-routing',\n className: 'Route',\n funcName: 'constructor',\n paramName: 'handler',\n });\n }\n return {handle: handler};\n }\n};\n","/*\n Copyright 2018 Google LLC\n\n Use of this source code is governed by an MIT-style\n license that can be found in the LICENSE file or at\n https://opensource.org/licenses/MIT.\n*/\n\nimport {assert} from 'workbox-core/_private/assert.mjs';\n\nimport {defaultMethod, validMethods} from './utils/constants.mjs';\nimport {normalizeHandler} from './utils/normalizeHandler.mjs';\nimport './_version.mjs';\n\n/**\n * A `Route` consists of a pair of callback functions, \"match\" and \"handler\".\n * The \"match\" callback determine if a route should be used to \"handle\" a\n * request by returning a non-falsy value if it can. The \"handler\" callback\n * is called when there is a match and should return a Promise that resolves\n * to a `Response`.\n *\n * @memberof workbox.routing\n */\nclass Route {\n /**\n * Constructor for Route class.\n *\n * @param {workbox.routing.Route~matchCallback} match\n * A callback function that determines whether the route matches a given\n * `fetch` event by returning a non-falsy value.\n * @param {workbox.routing.Route~handlerCallback} handler A callback\n * function that returns a Promise resolving to a Response.\n * @param {string} [method='GET'] The HTTP method to match the Route\n * against.\n */\n constructor(match, handler, method) {\n if (process.env.NODE_ENV !== 'production') {\n assert.isType(match, 'function', {\n moduleName: 'workbox-routing',\n className: 'Route',\n funcName: 'constructor',\n paramName: 'match',\n });\n\n if (method) {\n assert.isOneOf(method, validMethods, {paramName: 'method'});\n }\n }\n\n // These values are referenced directly by Router so cannot be\n // altered by minifification.\n this.handler = normalizeHandler(handler);\n this.match = match;\n this.method = method || defaultMethod;\n }\n}\n\nexport {Route};\n","/*\n Copyright 2018 Google LLC\n\n Use of this source code is governed by an MIT-style\n license that can be found in the LICENSE file or at\n https://opensource.org/licenses/MIT.\n*/\n\nimport {assert} from 'workbox-core/_private/assert.mjs';\nimport {logger} from 'workbox-core/_private/logger.mjs';\nimport {Route} from './Route.mjs';\nimport './_version.mjs';\n\n/**\n * NavigationRoute makes it easy to create a [Route]{@link\n * workbox.routing.Route} that matches for browser\n * [navigation requests]{@link https://developers.google.com/web/fundamentals/primers/service-workers/high-performance-loading#first_what_are_navigation_requests}.\n *\n * It will only match incoming Requests whose\n * [`mode`]{@link https://fetch.spec.whatwg.org/#concept-request-mode}\n * is set to `navigate`.\n *\n * You can optionally only apply this route to a subset of navigation requests\n * by using one or both of the `blacklist` and `whitelist` parameters.\n *\n * @memberof workbox.routing\n * @extends workbox.routing.Route\n */\nclass NavigationRoute extends Route {\n /**\n * If both `blacklist` and `whiltelist` are provided, the `blacklist` will\n * take precedence and the request will not match this route.\n *\n * The regular expressions in `whitelist` and `blacklist`\n * are matched against the concatenated\n * [`pathname`]{@link https://developer.mozilla.org/en-US/docs/Web/API/HTMLHyperlinkElementUtils/pathname}\n * and [`search`]{@link https://developer.mozilla.org/en-US/docs/Web/API/HTMLHyperlinkElementUtils/search}\n * portions of the requested URL.\n *\n * @param {workbox.routing.Route~handlerCallback} handler A callback\n * function that returns a Promise resulting in a Response.\n * @param {Object} options\n * @param {Array<RegExp>} [options.blacklist] If any of these patterns match,\n * the route will not handle the request (even if a whitelist RegExp matches).\n * @param {Array<RegExp>} [options.whitelist=[/./]] If any of these patterns\n * match the URL's pathname and search parameter, the route will handle the\n * request (assuming the blacklist doesn't match).\n */\n constructor(handler, {whitelist = [/./], blacklist = []} = {}) {\n if (process.env.NODE_ENV !== 'production') {\n assert.isArrayOfClass(whitelist, RegExp, {\n moduleName: 'workbox-routing',\n className: 'NavigationRoute',\n funcName: 'constructor',\n paramName: 'options.whitelist',\n });\n assert.isArrayOfClass(blacklist, RegExp, {\n moduleName: 'workbox-routing',\n className: 'NavigationRoute',\n funcName: 'constructor',\n paramName: 'options.blacklist',\n });\n }\n\n super((options) => this._match(options), handler);\n\n this._whitelist = whitelist;\n this._blacklist = blacklist;\n }\n\n /**\n * Routes match handler.\n *\n * @param {Object} options\n * @param {URL} options.url\n * @param {Request} options.request\n * @return {boolean}\n *\n * @private\n */\n _match({url, request}) {\n if (request.mode !== 'navigate') {\n return false;\n }\n\n const pathnameAndSearch = url.pathname + url.search;\n\n for (const regExp of this._blacklist) {\n if (regExp.test(pathnameAndSearch)) {\n if (process.env.NODE_ENV !== 'production') {\n logger.log(`The navigation route is not being used, since the ` +\n `URL matches this blacklist pattern: ${regExp}`);\n }\n return false;\n }\n }\n\n if (this._whitelist.some((regExp) => regExp.test(pathnameAndSearch))) {\n if (process.env.NODE_ENV !== 'production') {\n logger.debug(`The navigation route is being used.`);\n }\n return true;\n }\n\n if (process.env.NODE_ENV !== 'production') {\n logger.log(`The navigation route is not being used, since the URL ` +\n `being navigated to doesn't match the whitelist.`);\n }\n return false;\n }\n}\n\nexport {NavigationRoute};\n","/*\n Copyright 2018 Google LLC\n\n Use of this source code is governed by an MIT-style\n license that can be found in the LICENSE file or at\n https://opensource.org/licenses/MIT.\n*/\n\nimport {assert} from 'workbox-core/_private/assert.mjs';\nimport {logger} from 'workbox-core/_private/logger.mjs';\nimport {Route} from './Route.mjs';\nimport './_version.mjs';\n\n/**\n * RegExpRoute makes it easy to create a regular expression based\n * [Route]{@link workbox.routing.Route}.\n *\n * For same-origin requests the RegExp only needs to match part of the URL. For\n * requests against third-party servers, you must define a RegExp that matches\n * the start of the URL.\n *\n * [See the module docs for info.]{@link https://developers.google.com/web/tools/workbox/modules/workbox-routing}\n *\n * @memberof workbox.routing\n * @extends workbox.routing.Route\n */\nclass RegExpRoute extends Route {\n /**\n * If the regulard expression contains\n * [capture groups]{@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp#grouping-back-references},\n * th ecaptured values will be passed to the\n * [handler's]{@link workbox.routing.Route~handlerCallback} `params`\n * argument.\n *\n * @param {RegExp} regExp The regular expression to match against URLs.\n * @param {workbox.routing.Route~handlerCallback} handler A callback\n * function that returns a Promise resulting in a Response.\n * @param {string} [method='GET'] The HTTP method to match the Route\n * against.\n */\n constructor(regExp, handler, method) {\n if (process.env.NODE_ENV !== 'production') {\n assert.isInstance(regExp, RegExp, {\n moduleName: 'workbox-routing',\n className: 'RegExpRoute',\n funcName: 'constructor',\n paramName: 'pattern',\n });\n }\n\n const match = ({url}) => {\n const result = regExp.exec(url.href);\n\n // Return null immediately if there's no match.\n if (!result) {\n return null;\n }\n\n // Require that the match start at the first character in the URL string\n // if it's a cross-origin request.\n // See https://github.com/GoogleChrome/workbox/issues/281 for the context\n // behind this behavior.\n if ((url.origin !== location.origin) && (result.index !== 0)) {\n if (process.env.NODE_ENV !== 'production') {\n logger.debug(\n `The regular expression '${regExp}' only partially matched ` +\n `against the cross-origin URL '${url}'. RegExpRoute's will only ` +\n `handle cross-origin requests if they match the entire URL.`\n );\n }\n\n return null;\n }\n\n // If the route matches, but there aren't any capture groups defined, then\n // this will return [], which is truthy and therefore sufficient to\n // indicate a match.\n // If there are capture groups, then it will return their values.\n return result.slice(1);\n };\n\n super(match, handler, method);\n }\n}\n\nexport {RegExpRoute};\n","/*\n Copyright 2018 Google LLC\n\n Use of this source code is governed by an MIT-style\n license that can be found in the LICENSE file or at\n https://opensource.org/licenses/MIT.\n*/\n\nimport {assert} from 'workbox-core/_private/assert.mjs';\nimport {logger} from 'workbox-core/_private/logger.mjs';\nimport {WorkboxError} from 'workbox-core/_private/WorkboxError.mjs';\nimport {getFriendlyURL} from 'workbox-core/_private/getFriendlyURL.mjs';\n\nimport {normalizeHandler} from './utils/normalizeHandler.mjs';\nimport './_version.mjs';\n\n/**\n * The Router can be used to process a FetchEvent through one or more\n * [Routes]{@link workbox.routing.Route} responding with a Request if\n * a matching route exists.\n *\n * If no route matches a given a request, the Router will use a \"default\"\n * handler if one is defined.\n *\n * Should the matching Route throw an error, the Router will use a \"catch\"\n * handler if one is defined to gracefully deal with issues and respond with a\n * Request.\n *\n * If a request matches multiple routes, the **earliest** registered route will\n * be used to respond to the request.\n *\n * @memberof workbox.routing\n */\nclass Router {\n /**\n * Initializes a new Router.\n */\n constructor() {\n this._routes = new Map();\n }\n\n /**\n * @return {Map<string, Array<workbox.routing.Route>>} routes A `Map` of HTTP\n * method name ('GET', etc.) to an array of all the corresponding `Route`\n * instances that are registered.\n */\n get routes() {\n return this._routes;\n }\n\n /**\n * Adds a fetch event listener to respond to events when a route matches\n * the event's request.\n */\n addFetchListener() {\n self.addEventListener('fetch', (event) => {\n const {request} = event;\n const responsePromise = this.handleRequest({request, event});\n if (responsePromise) {\n event.respondWith(responsePromise);\n }\n });\n }\n\n /**\n * Adds a message event listener for URLs to cache from the window.\n * This is useful to cache resources loaded on the page prior to when the\n * service worker started controlling it.\n *\n * The format of the message data sent from the window should be as follows.\n * Where the `urlsToCache` array may consist of URL strings or an array of\n * URL string + `requestInit` object (the same as you'd pass to `fetch()`).\n *\n * ```\n * {\n * type: 'CACHE_URLS',\n * payload: {\n * urlsToCache: [\n * './script1.js',\n * './script2.js',\n * ['./script3.js', {mode: 'no-cors'}],\n * ],\n * },\n * }\n * ```\n */\n addCacheListener() {\n self.addEventListener('message', async (event) => {\n if (event.data && event.data.type === 'CACHE_URLS') {\n const {payload} = event.data;\n\n if (process.env.NODE_ENV !== 'production') {\n logger.debug(`Caching URLs from the window`, payload.urlsToCache);\n }\n\n const requestPromises = Promise.all(payload.urlsToCache.map((entry) => {\n if (typeof entry === 'string') {\n entry = [entry];\n }\n\n const request = new Request(...entry);\n return this.handleRequest({request});\n }));\n\n event.waitUntil(requestPromises);\n\n // If a MessageChannel was used, reply to the message on success.\n if (event.ports && event.ports[0]) {\n await requestPromises;\n event.ports[0].postMessage(true);\n }\n }\n });\n }\n\n /**\n * Apply the routing rules to a FetchEvent object to get a Response from an\n * appropriate Route's handler.\n *\n * @param {Object} options\n * @param {Request} options.request The request to handle (this is usually\n * from a fetch event, but it does not have to be).\n * @param {FetchEvent} [options.event] The event that triggered the request,\n * if applicable.\n * @return {Promise<Response>|undefined} A promise is returned if a\n * registered route can handle the request. If there is no matching\n * route and there's no `defaultHandler`, `undefined` is returned.\n */\n handleRequest({request, event}) {\n if (process.env.NODE_ENV !== 'production') {\n assert.isInstance(request, Request, {\n moduleName: 'workbox-routing',\n className: 'Router',\n funcName: 'handleRequest',\n paramName: 'options.request',\n });\n }\n\n const url = new URL(request.url, location);\n if (!url.protocol.startsWith('http')) {\n if (process.env.NODE_ENV !== 'production') {\n logger.debug(\n `Workbox Router only supports URLs that start with 'http'.`);\n }\n return;\n }\n\n let {params, route} = this.findMatchingRoute({url, request, event});\n let handler = route && route.handler;\n\n let debugMessages = [];\n if (process.env.NODE_ENV !== 'production') {\n if (handler) {\n debugMessages.push([\n `Found a route to handle this request:`, route,\n ]);\n\n if (params) {\n debugMessages.push([\n `Passing the following params to the route's handler:`, params,\n ]);\n }\n }\n }\n\n // If we don't have a handler because there was no matching route, then\n // fall back to defaultHandler if that's defined.\n if (!handler && this._defaultHandler) {\n if (process.env.NODE_ENV !== 'production') {\n debugMessages.push(`Failed to find a matching route. Falling ` +\n `back to the default handler.`);\n\n // This is used for debugging in logs in the case of an error.\n route = '[Default Handler]';\n }\n handler = this._defaultHandler;\n }\n\n if (!handler) {\n if (process.env.NODE_ENV !== 'production') {\n // No handler so Workbox will do nothing. If logs is set of debug\n // i.e. verbose, we should print out this information.\n logger.debug(`No route found for: ${getFriendlyURL(url)}`);\n }\n return;\n }\n\n if (process.env.NODE_ENV !== 'production') {\n // We have a handler, meaning Workbox is going to handle the route.\n // print the routing details to the console.\n logger.groupCollapsed(`Router is responding to: ${getFriendlyURL(url)}`);\n debugMessages.forEach((msg) => {\n if (Array.isArray(msg)) {\n logger.log(...msg);\n } else {\n logger.log(msg);\n }\n });\n\n // The Request and Response objects contains a great deal of information,\n // hide it under a group in case developers want to see it.\n logger.groupCollapsed(`View request details here.`);\n logger.log(request);\n logger.groupEnd();\n\n logger.groupEnd();\n }\n\n // Wrap in try and catch in case the handle method throws a synchronous\n // error. It should still callback to the catch handler.\n let responsePromise;\n try {\n responsePromise = handler.handle({url, request, event, params});\n } catch (err) {\n responsePromise = Promise.reject(err);\n }\n\n if (responsePromise && this._catchHandler) {\n responsePromise = responsePromise.catch((err) => {\n if (process.env.NODE_ENV !== 'production') {\n // Still include URL here as it will be async from the console group\n // and may not make sense without the URL\n logger.groupCollapsed(`Error thrown when responding to: ` +\n ` ${getFriendlyURL(url)}. Falling back to Catch Handler.`);\n logger.error(`Error thrown by:`, route);\n logger.error(err);\n logger.groupEnd();\n }\n return this._catchHandler.handle({url, event, err});\n });\n }\n\n return responsePromise;\n }\n\n /**\n * Checks a request and URL (and optionally an event) against the list of\n * registered routes, and if there's a match, returns the corresponding\n * route along with any params generated by the match.\n *\n * @param {Object} options\n * @param {URL} options.url\n * @param {Request} options.request The request to match.\n * @param {FetchEvent} [options.event] The corresponding event (unless N/A).\n * @return {Object} An object with `route` and `params` properties.\n * They are populated if a matching route was found or `undefined`\n * otherwise.\n */\n findMatchingRoute({url, request, event}) {\n if (process.env.NODE_ENV !== 'production') {\n assert.isInstance(url, URL, {\n moduleName: 'workbox-routing',\n className: 'Router',\n funcName: 'findMatchingRoute',\n paramName: 'options.url',\n });\n assert.isInstance(request, Request, {\n moduleName: 'workbox-routing',\n className: 'Router',\n funcName: 'findMatchingRoute',\n paramName: 'options.request',\n });\n }\n\n const routes = this._routes.get(request.method) || [];\n for (const route of routes) {\n let params;\n let matchResult = route.match({url, request, event});\n if (matchResult) {\n if (Array.isArray(matchResult) && matchResult.length > 0) {\n // Instead of passing an empty array in as params, use undefined.\n params = matchResult;\n } else if ((matchResult.constructor === Object &&\n Object.keys(matchResult).length > 0)) {\n // Instead of passing an empty object in as params, use undefined.\n params = matchResult;\n }\n\n // Return early if have a match.\n return {route, params};\n }\n }\n // If no match was found above, return and empty object.\n return {};\n }\n\n /**\n * Define a default `handler` that's called when no routes explicitly\n * match the incoming request.\n *\n * Without a default handler, unmatched requests will go against the\n * network as if there were no service worker present.\n *\n * @param {workbox.routing.Route~handlerCallback} handler A callback\n * function that returns a Promise resulting in a Response.\n */\n setDefaultHandler(handler) {\n this._defaultHandler = normalizeHandler(handler);\n }\n\n /**\n * If a Route throws an error while handling a request, this `handler`\n * will be called and given a chance to provide a response.\n *\n * @param {workbox.routing.Route~handlerCallback} handler A callback\n * function that returns a Promise resulting in a Response.\n */\n setCatchHandler(handler) {\n this._catchHandler = normalizeHandler(handler);\n }\n\n /**\n * Registers a route with the router.\n *\n * @param {workbox.routing.Route} route The route to register.\n */\n registerRoute(route) {\n if (process.env.NODE_ENV !== 'production') {\n assert.isType(route, 'object', {\n moduleName: 'workbox-routing',\n className: 'Router',\n funcName: 'registerRoute',\n paramName: 'route',\n });\n\n assert.hasMethod(route, 'match', {\n moduleName: 'workbox-routing',\n className: 'Router',\n funcName: 'registerRoute',\n paramName: 'route',\n });\n\n assert.isType(route.handler, 'object', {\n moduleName: 'workbox-routing',\n className: 'Router',\n funcName: 'registerRoute',\n paramName: 'route',\n });\n\n assert.hasMethod(route.handler, 'handle', {\n moduleName: 'workbox-routing',\n className: 'Router',\n funcName: 'registerRoute',\n paramName: 'route.handler',\n });\n\n assert.isType(route.method, 'string', {\n moduleName: 'workbox-routing',\n className: 'Router',\n funcName: 'registerRoute',\n paramName: 'route.method',\n });\n }\n\n if (!this._routes.has(route.method)) {\n this._routes.set(route.method, []);\n }\n\n // Give precedence to all of the earlier routes by adding this additional\n // route to the end of the array.\n this._routes.get(route.method).push(route);\n }\n\n /**\n * Unregisters a route with the router.\n *\n * @param {workbox.routing.Route} route The route to unregister.\n */\n unregisterRoute(route) {\n if (!this._routes.has(route.method)) {\n throw new WorkboxError(\n 'unregister-route-but-not-found-with-method', {\n method: route.method,\n }\n );\n }\n\n const routeIndex = this._routes.get(route.method).indexOf(route);\n if (routeIndex > -1) {\n this._routes.get(route.method).splice(routeIndex, 1);\n } else {\n throw new WorkboxError('unregister-route-route-not-registered');\n }\n }\n}\n\nexport {Router};\n","/*\n Copyright 2019 Google LLC\n\n Use of this source code is governed by an MIT-style\n license that can be found in the LICENSE file or at\n https://opensource.org/licenses/MIT.\n*/\n\nimport {Router} from '../Router.mjs';\nimport '../_version.mjs';\n\nlet defaultRouter;\n\n/**\n * Creates a new, singleton Router instance if one does not exist. If one\n * does already exist, that instance is returned.\n *\n * @private\n * @return {Router}\n */\nexport const getOrCreateDefaultRouter = () => {\n if (!defaultRouter) {\n defaultRouter = new Router();\n\n // The helpers that use the default Router assume these listeners exist.\n defaultRouter.addFetchListener();\n defaultRouter.addCacheListener();\n }\n return defaultRouter;\n};\n","/*\n Copyright 2019 Google LLC\n\n Use of this source code is governed by an MIT-style\n license that can be found in the LICENSE file or at\n https://opensource.org/licenses/MIT.\n*/\n\nimport {assert} from 'workbox-core/_private/assert.mjs';\nimport {cacheNames} from 'workbox-core/_private/cacheNames.mjs';\nimport {logger} from 'workbox-core/_private/logger.mjs';\nimport {NavigationRoute} from './NavigationRoute.mjs';\nimport {getOrCreateDefaultRouter} from './utils/getOrCreateDefaultRouter.mjs';\nimport './_version.mjs';\n\n\n/**\n * Registers a route that will return a precached file for a navigation\n * request. This is useful for the\n * [application shell pattern]{@link https://developers.google.com/web/fundamentals/architecture/app-shell}.\n *\n * When determining the URL of the precached HTML document, you will likely need\n * to call `workbox.precaching.getCacheKeyForURL(originalUrl)`, to account for\n * the fact that Workbox's precaching naming conventions often results in URL\n * cache keys that contain extra revisioning info.\n *\n * This method will generate a\n * [NavigationRoute]{@link workbox.routing.NavigationRoute}\n * and call\n * [Router.registerRoute()]{@link workbox.routing.Router#registerRoute} on a\n * singleton Router instance.\n *\n * @param {string} cachedAssetUrl The cache key to use for the HTML file.\n * @param {Object} [options]\n * @param {string} [options.cacheName] Cache name to store and retrieve\n * requests. Defaults to precache cache name provided by\n * [workbox-core.cacheNames]{@link workbox.core.cacheNames}.\n * @param {Array<RegExp>} [options.blacklist=[]] If any of these patterns\n * match, the route will not handle the request (even if a whitelist entry\n * matches).\n * @param {Array<RegExp>} [options.whitelist=[/./]] If any of these patterns\n * match the URL's pathname and search parameter, the route will handle the\n * request (assuming the blacklist doesn't match).\n * @return {workbox.routing.NavigationRoute} Returns the generated\n * Route.\n *\n * @alias workbox.routing.registerNavigationRoute\n */\nexport const registerNavigationRoute = (cachedAssetUrl, options = {}) => {\n if (process.env.NODE_ENV !== 'production') {\n assert.isType(cachedAssetUrl, 'string', {\n moduleName: 'workbox-routing',\n funcName: 'registerNavigationRoute',\n paramName: 'cachedAssetUrl',\n });\n }\n\n const cacheName = cacheNames.getPrecacheName(options.cacheName);\n const handler = async () => {\n try {\n const response = await caches.match(cachedAssetUrl, {cacheName});\n\n if (response) {\n return response;\n }\n\n // This shouldn't normally happen, but there are edge cases:\n // https://github.com/GoogleChrome/workbox/issues/1441\n throw new Error(`The cache ${cacheName} did not have an entry for ` +\n `${cachedAssetUrl}.`);\n } catch (error) {\n // If there's either a cache miss, or the caches.match() call threw\n // an exception, then attempt to fulfill the navigation request with\n // a response from the network rather than leaving the user with a\n // failed navigation.\n if (process.env.NODE_ENV !== 'production') {\n logger.debug(`Unable to respond to navigation request with ` +\n `cached response. Falling back to network.`, error);\n }\n\n // This might still fail if the browser is offline...\n return fetch(cachedAssetUrl);\n }\n };\n\n const route = new NavigationRoute(handler, {\n whitelist: options.whitelist,\n blacklist: options.blacklist,\n });\n\n const defaultRouter = getOrCreateDefaultRouter();\n defaultRouter.registerRoute(route);\n\n return route;\n};\n","/*\n Copyright 2019 Google LLC\n\n Use of this source code is governed by an MIT-style\n license that can be found in the LICENSE file or at\n https://opensource.org/licenses/MIT.\n*/\n\nimport {logger} from 'workbox-core/_private/logger.mjs';\nimport {WorkboxError} from 'workbox-core/_private/WorkboxError.mjs';\nimport {Route} from './Route.mjs';\nimport {RegExpRoute} from './RegExpRoute.mjs';\nimport {getOrCreateDefaultRouter} from './utils/getOrCreateDefaultRouter.mjs';\nimport './_version.mjs';\n\n\n/**\n * Easily register a RegExp, string, or function with a caching\n * strategy to a singleton Router instance.\n *\n * This method will generate a Route for you if needed and\n * call [Router.registerRoute()]{@link\n * workbox.routing.Router#registerRoute}.\n *\n * @param {\n * RegExp|\n * string|\n * workbox.routing.Route~matchCallback|\n * workbox.routing.Route\n * } capture\n * If the capture param is a `Route`, all other arguments will be ignored.\n * @param {workbox.routing.Route~handlerCallback} handler A callback\n * function that returns a Promise resulting in a Response.\n * @param {string} [method='GET'] The HTTP method to match the Route\n * against.\n * @return {workbox.routing.Route} The generated `Route`(Useful for\n * unregistering).\n *\n * @alias workbox.routing.registerRoute\n */\nexport const registerRoute = (capture, handler, method = 'GET') => {\n let route;\n\n if (typeof capture === 'string') {\n const captureUrl = new URL(capture, location);\n\n if (process.env.NODE_ENV !== 'production') {\n if (!(capture.startsWith('/') || capture.startsWith('http'))) {\n throw new WorkboxError('invalid-string', {\n moduleName: 'workbox-routing',\n funcName: 'registerRoute',\n paramName: 'capture',\n });\n }\n\n // We want to check if Express-style wildcards are in the pathname only.\n // TODO: Remove this log message in v4.\n const valueToCheck = capture.startsWith('http') ?\n captureUrl.pathname : capture;\n\n // See https://github.com/pillarjs/path-to-regexp#parameters\n const wildcards = '[*:?+]';\n if (valueToCheck.match(new RegExp(`${wildcards}`))) {\n logger.debug(\n `The '$capture' parameter contains an Express-style wildcard ` +\n `character (${wildcards}). Strings are now always interpreted as ` +\n `exact matches; use a RegExp for partial or wildcard matches.`\n );\n }\n }\n\n const matchCallback = ({url}) => {\n if (process.env.NODE_ENV !== 'production') {\n if ((url.pathname === captureUrl.pathname) &&\n (url.origin !== captureUrl.origin)) {\n logger.debug(\n `${capture} only partially matches the cross-origin URL ` +\n `${url}. This route will only handle cross-origin requests ` +\n `if they match the entire URL.`);\n }\n }\n\n return url.href === captureUrl.href;\n };\n\n route = new Route(matchCallback, handler, method);\n } else if (capture instanceof RegExp) {\n route = new RegExpRoute(capture, handler, method);\n } else if (typeof capture === 'function') {\n route = new Route(capture, handler, method);\n } else if (capture instanceof Route) {\n route = capture;\n } else {\n throw new WorkboxError('unsupported-route-type', {\n moduleName: 'workbox-routing',\n funcName: 'registerRoute',\n paramName: 'capture',\n });\n }\n\n const defaultRouter = getOrCreateDefaultRouter();\n defaultRouter.registerRoute(route);\n\n return route;\n};\n","/*\n Copyright 2019 Google LLC\n\n Use of this source code is governed by an MIT-style\n license that can be found in the LICENSE file or at\n https://opensource.org/licenses/MIT.\n*/\n\nimport {getOrCreateDefaultRouter} from './utils/getOrCreateDefaultRouter.mjs';\n\nimport './_version.mjs';\n\n/**\n * If a Route throws an error while handling a request, this `handler`\n * will be called and given a chance to provide a response.\n *\n * @param {workbox.routing.Route~handlerCallback} handler A callback\n * function that returns a Promise resulting in a Response.\n *\n * @alias workbox.routing.setCatchHandler\n */\nexport const setCatchHandler = (handler) => {\n const defaultRouter = getOrCreateDefaultRouter();\n defaultRouter.setCatchHandler(handler);\n};\n","/*\n Copyright 2019 Google LLC\n\n Use of this source code is governed by an MIT-style\n license that can be found in the LICENSE file or at\n https://opensource.org/licenses/MIT.\n*/\n\nimport {getOrCreateDefaultRouter} from './utils/getOrCreateDefaultRouter.mjs';\n\nimport './_version.mjs';\n\n/**\n * Define a default `handler` that's called when no routes explicitly\n * match the incoming request.\n *\n * Without a default handler, unmatched requests will go against the\n * network as if there were no service worker present.\n *\n * @param {workbox.routing.Route~handlerCallback} handler A callback\n * function that returns a Promise resulting in a Response.\n *\n * @alias workbox.routing.setDefaultHandler\n */\nexport const setDefaultHandler = (handler) => {\n const defaultRouter = getOrCreateDefaultRouter();\n 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