72 lines
2.8 KiB
JavaScript
72 lines
2.8 KiB
JavaScript
/* eslint-disable no-restricted-globals */
|
|
|
|
// This service worker can be customized!
|
|
// See https://developers.google.com/web/tools/workbox/modules
|
|
// for the list of available Workbox modules, or add any other
|
|
// code you'd like.
|
|
// You can also remove this file if you'd prefer not to use a
|
|
// service worker, and the Workbox build step will be skipped.
|
|
|
|
import { clientsClaim } from 'workbox-core';
|
|
import { ExpirationPlugin } from 'workbox-expiration';
|
|
import { precacheAndRoute, createHandlerBoundToURL } from 'workbox-precaching';
|
|
import { registerRoute } from 'workbox-routing';
|
|
import { StaleWhileRevalidate } from 'workbox-strategies';
|
|
|
|
clientsClaim();
|
|
|
|
// Precache all of the assets generated by your build process.
|
|
// Their URLs are injected into the manifest variable below.
|
|
// This variable must be present somewhere in your service worker file,
|
|
// even if you decide not to use precaching. See https://cra.link/PWA
|
|
precacheAndRoute(self.__WB_MANIFEST);
|
|
|
|
// Set up App Shell-style routing, so that all navigation requests
|
|
// are fulfilled with your index.html shell. Learn more at
|
|
// https://developers.google.com/web/fundamentals/architecture/app-shell
|
|
const fileExtensionRegexp = new RegExp('/[^/?]+\\.[^/]+$');
|
|
registerRoute(
|
|
// Return false to exempt requests from being fulfilled by index.html.
|
|
({ request, url }) => {
|
|
// If this isn't a navigation, skip.
|
|
if (request.mode !== 'navigate') {
|
|
return false;
|
|
} // If this is a URL that starts with /_, skip.
|
|
|
|
if (url.pathname.startsWith('/_')) {
|
|
return false;
|
|
} // If this looks like a URL for a resource, because it contains // a file extension, skip.
|
|
|
|
if (url.pathname.match(fileExtensionRegexp)) {
|
|
return false;
|
|
} // Return true to signal that we want to use the handler.
|
|
|
|
return true;
|
|
},
|
|
createHandlerBoundToURL(process.env.PUBLIC_URL + '/index.html')
|
|
);
|
|
|
|
// An example runtime caching route for requests that aren't handled by the
|
|
// precache, in this case same-origin .png requests like those from in public/
|
|
registerRoute(
|
|
// Add in any other file extensions or routing criteria as needed.
|
|
({ url }) => url.origin === self.location.origin && url.pathname.endsWith('.png'), // Customize this strategy as needed, e.g., by changing to CacheFirst.
|
|
new StaleWhileRevalidate({
|
|
cacheName: 'images',
|
|
plugins: [
|
|
// Ensure that once this runtime cache reaches a maximum size the
|
|
// least-recently used images are removed.
|
|
new ExpirationPlugin({ maxEntries: 50 }),
|
|
],
|
|
})
|
|
);
|
|
|
|
// This allows the web app to trigger skipWaiting via
|
|
// registration.waiting.postMessage({type: 'SKIP_WAITING'})
|
|
self.addEventListener('message', (event) => {
|
|
if (event.data && event.data.type === 'SKIP_WAITING') {
|
|
self.skipWaiting();
|
|
}
|
|
});
|
|
|
|
// Any other custom service worker logic can go here.
|