49 lines
1.2 KiB
JavaScript
49 lines
1.2 KiB
JavaScript
/// <reference types="@sveltejs/kit" />
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import { build, files, version } from "$service-worker";
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const cacheName = `ob-${version}`;
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const assets = [...build, ...files, "/service-worker.js"];
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self.addEventListener("install", (event) => {
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async function addToCache() {
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const cache = await caches.open(cacheName);
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await cache.addAll(assets);
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}
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event.waitUntil(addToCache());
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});
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self.addEventListener("activate", (event) => {
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async function deleteOldCache() {
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for (const key of await caches.keys()) {
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if (key !== cacheName) {
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await caches.delete(key);
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}
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}
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}
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event.waitUntil(deleteOldCache());
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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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async function respond() {
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const cacheRes = await caches.match(event.request, { ignoreSearch: true });
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if (cacheRes) {
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return cacheRes;
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}
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try {
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return await fetch(event.request);
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} catch (err) {
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return { error: "OFFLINE", errorMsg: "You are offline" };
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}
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}
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event.respondWith(respond());
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});
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