/* 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. */ import { registerRoute } from 'workbox-routing/registerRoute.js'; import { StaleWhileRevalidate } from 'workbox-strategies/StaleWhileRevalidate.js'; import { CacheFirst } from 'workbox-strategies/CacheFirst.js'; import { CacheableResponsePlugin } from 'workbox-cacheable-response/CacheableResponsePlugin.js'; import { ExpirationPlugin } from 'workbox-expiration/ExpirationPlugin.js'; import './_version.js'; /** * An implementation of the [Google fonts]{@link https://developers.google.com/web/tools/workbox/guides/common-recipes#google_fonts} caching recipe * * @memberof workbox-recipes * * @param {Object} [options] * @param {string} [options.cachePrefix] Cache prefix for caching stylesheets and webfonts. Defaults to google-fonts * @param {number} [options.maxAgeSeconds] Maximum age, in seconds, that font entries will be cached for. Defaults to 1 year * @param {number} [options.maxEntries] Maximum number of fonts that will be cached. Defaults to 30 */ function googleFontsCache(options = {}) { const sheetCacheName = `${options.cachePrefix || 'google-fonts'}-stylesheets`; const fontCacheName = `${options.cachePrefix || 'google-fonts'}-webfonts`; const maxAgeSeconds = options.maxAgeSeconds || 60 * 60 * 24 * 365; const maxEntries = options.maxEntries || 30; // Cache the Google Fonts stylesheets with a stale-while-revalidate strategy. registerRoute(({ url }) => url.origin === 'https://fonts.googleapis.com', new StaleWhileRevalidate({ cacheName: sheetCacheName, })); // Cache the underlying font files with a cache-first strategy for 1 year. registerRoute(({ url }) => url.origin === 'https://fonts.gstatic.com', new CacheFirst({ cacheName: fontCacheName, plugins: [ new CacheableResponsePlugin({ statuses: [0, 200], }), new ExpirationPlugin({ maxAgeSeconds, maxEntries, }), ], })); } export { googleFontsCache };