const common = require('./webpack.common.js') const WorkboxPlugin = require('workbox-webpack-plugin') module.exports = { ...common, mode: 'production', devtool: 'source-map', plugins: [ ...common.plugins, new WorkboxPlugin.GenerateSW({ clientsClaim: true, skipWaiting: true, swDest: 'sw.js', navigateFallback: '/', navigateFallbackBlacklist: [/.*\?s=.*$/, /^\/stats/], runtimeCaching: [ { urlPattern: new RegExp( 'https://fonts.(?:googleapis|gstatic).com/(.*)|https://cdn.polyfill.io/v2/polyfill.min.js' ), handler: 'cacheFirst', options: { cacheName: 'google-fonts', expiration: { maxEntries: 5 }, cacheableResponse: { statuses: [0, 200] } } } ] }) ] }