57 lines
1.8 KiB
JavaScript
57 lines
1.8 KiB
JavaScript
import {manifest, version} from '@parcel/service-worker';
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async function install() {
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console.log("Installing service worker!")
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const cache = await caches.open(version);
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console.log("Manifest file", manifest)
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// await cache.addAll(manifest);
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/* await cache.add({
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cache: "force-cache",
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url: "http://4.bp.blogspot.com/-_vTDmo_fSTw/T3YTV0AfGiI/AAAAAAAAAX4/Zjh2HaoU5Zo/s1600/beautiful%2Bkitten.jpg",
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destination: "image",
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})//*/
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}
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addEventListener('install', e => e.waitUntil(install()));
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async function activate() {
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console.log("Activating service worker")
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/*self.registration.showNotification("SW started", {
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actions: [{
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action: "OK",
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title: "Some action"
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}]
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})*/
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const keys = await caches.keys();
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await Promise.all(
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keys.map(key => key !== version && caches.delete(key))
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);
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}
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addEventListener('activate', e => e.waitUntil(activate()));
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self.addEventListener('fetch', (event) => {
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try {
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if (event.request.url === "http://127.0.0.1:1234/somedata") {
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console.log("Sending hi to 'somedata'")
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event.respondWith(new Response("Service worker is active"))
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return
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}
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const origin = new URL(self.origin)
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const requestUrl = new URL(event.request.url)
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console.log("Testing cache", origin.host, requestUrl.host, origin.host === requestUrl.host)
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if (origin.host !== requestUrl.host) {
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event.respondWith(fetch(event.request));
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return
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}
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event.respondWith(
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caches.match(event.request).then(function (response) {
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return response || fetch(event.request);
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}),
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);
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} catch (e) {
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console.error("CRASH IN SW:", e)
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event.respondWith(fetch(event.request));
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}
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});
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