64 lines
1.6 KiB
JavaScript
64 lines
1.6 KiB
JavaScript
const CACHE_NAME = 'ko-talk-shell-v3';
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const SHELL = [
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'/manifest.webmanifest',
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'/icon.svg',
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'/icon-192.png',
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'/icon-512.png',
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'/apple-touch-icon.png',
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'/favicon.ico',
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];
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self.addEventListener('install', (event) => {
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event.waitUntil(caches.open(CACHE_NAME).then((cache) => cache.addAll(SHELL)));
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self.skipWaiting();
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});
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self.addEventListener('activate', (event) => {
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event.waitUntil(
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caches.keys().then((keys) =>
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Promise.all(keys.filter((key) => key !== CACHE_NAME).map((key) => caches.delete(key))),
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),
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);
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self.clients.claim();
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});
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self.addEventListener('fetch', (event) => {
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if (event.request.method !== 'GET') {
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return;
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}
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const url = new URL(event.request.url);
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if (url.origin !== self.location.origin || url.pathname.startsWith('/v1/')) {
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return;
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}
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if (event.request.mode === 'navigate') {
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event.respondWith(
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fetch(event.request)
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.then(async (response) => {
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const cache = await caches.open(CACHE_NAME);
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cache.put('/index.html', response.clone());
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return response;
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})
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.catch(async () => {
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const cache = await caches.open(CACHE_NAME);
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return (await cache.match('/index.html')) ?? Response.error();
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}),
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);
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return;
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}
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event.respondWith(
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caches.match(event.request).then((cached) => {
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if (cached) {
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return cached;
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}
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return fetch(event.request).then((response) => {
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const cloned = response.clone();
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caches.open(CACHE_NAME).then((cache) => cache.put(event.request, cloned));
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return response;
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});
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}),
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);
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});
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