78 lines
2.1 KiB
JavaScript
78 lines
2.1 KiB
JavaScript
const CACHE_NAME = "espj-upst-pwa-v1";
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const OFFLINE_URL = "/driver/offline.html";
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const PRECACHE_URLS = [
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"/upst",
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"/upst/kosong",
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"/driver/manifest.json",
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"/driver/favicon.ico",
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"/driver/images/pwa_192.png",
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"/driver/images/pwa_512.png",
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OFFLINE_URL
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];
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self.addEventListener("install", (event) => {
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event.waitUntil(
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caches.open(CACHE_NAME).then((cache) => cache.addAll(PRECACHE_URLS))
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);
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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(
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keys
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.filter((key) => key !== CACHE_NAME)
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.map((key) => caches.delete(key))
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)
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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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const { request } = event;
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const url = new URL(request.url);
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if (request.method !== "GET") {
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return;
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}
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if (request.mode === "navigate") {
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event.respondWith(
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fetch(request)
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.then((response) => {
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const responseClone = response.clone();
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caches.open(CACHE_NAME).then((cache) => cache.put(request, responseClone));
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return response;
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})
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.catch(async () => {
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const cachedPage = await caches.match(request);
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return cachedPage || caches.match(OFFLINE_URL);
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})
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);
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return;
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}
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if (url.origin !== self.location.origin) {
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return;
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}
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event.respondWith(
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caches.match(request).then((cachedResponse) => {
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const networkFetch = fetch(request)
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.then((response) => {
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if (response && response.ok) {
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const responseClone = response.clone();
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caches.open(CACHE_NAME).then((cache) => cache.put(request, responseClone));
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}
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return response;
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})
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.catch(() => cachedResponse);
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return cachedResponse || networkFetch;
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})
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);
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});
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