coriolis/src/sw.js

import {precacheAndRoute, createHandlerBoundToURL} from 'workbox-precaching';
import {NavigationRoute, registerRoute} from 'workbox-routing';
import {StaleWhileRevalidate, CacheFirst} from 'workbox-strategies';
import {CacheableResponsePlugin} from 'workbox-cacheable-response'
import {ExpirationPlugin} from 'workbox-expiration';

console.log('Hello from sw.js');

// See https://developer.chrome.com/docs/workbox/migration/migrate-from-v4/ for guide to changes made
console.log('Yay! Workbox is loaded 🎉');
precacheAndRoute(self.__WB_MANIFEST || []);

const handler = createHandlerBoundToURL('/index.html');
const navigationRoute = new NavigationRoute(handler
  // , {allowlist: [...], denylist: [...],}
);
registerRoute(navigationRoute);


registerRoute(
  /\.(?:png|jpg|jpeg|svg|gif)$/,
  new CacheFirst({
    plugins: [
      new CacheableResponsePlugin({
        statuses: [0, 200]
      })
    ]
  })
);

registerRoute(
  /\.(?:js|css)$/,
  new StaleWhileRevalidate({
    cacheName: 'static-resources',
  })
);

registerRoute(
  new RegExp('https://fonts.(?:googleapis|gstatic).com/(.*)'),
  new CacheFirst({
    cacheName: 'google-fonts',
    plugins: [
      new ExpirationPlugin({
        maxEntries: 30
      }),
      new CacheableResponsePlugin({
        statuses: [0, 200]
      })
    ]
  })
);

self.addEventListener('message', event => {
  if (!event.data) {
    return;
  }

  switch (event.data) {
    case 'skipWaiting':
      self.skipWaiting();
      break;
    default:
      // NOOP
      break;
  }
});