* 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.

* This acts as a drop-in replacement for * [`cache.match()`](https://developer.mozilla.org/en-US/docs/Web/API/Cache/match) * with the fo

* Unregister event listener * @param {string} event - Event name * @param {Function} callback - Callback function

* This method will add entries to the precache list and add a route to * respond to fetch events. * * This is a convenience method that

* Reset tutorial progress

* @return {Map<string, Array<workbox-routing.Route>>} routes A `Map` of HTTP * method name ('GET', etc.) to an array of all the corresponding `

* * @param {workbox-routing-handlerCallback} handler A callback * function that returns a Promise resolving to a Response

* If a Route throws an error while handling a request, this `handler` * will be called and given a chance to provide a response. *

* Define a default `handler` that's called when no routes explicitly * match the incoming request. * * Each HTTP method ('GET', '

* @type {workbox-precaching.PrecacheStrategy} The strategy created by this controller and * used to cache assets and respond to fetch events.

* Unregisters a route with the router. * * @param {workbox-routing.Route} route The route to unregister.