https://playwordle.co.uk/wp-content/themes/astra/svelte/dist/sw.js

1//! IF ANYTHING IN THIS FILE IS CHANGED MAKE SURE setVersion.js HAS ALSO BEEN UPDATED
2// Increase the v number when the app is updated
3const version = "1.5.2";
4const cacheName = `-v${version}`;
5
6const assetsToCache = [
7	"./",
8	"./index.html",
9	`./index-${version}.css`,
10	`./index-${version}.js`,
11	"./global.css",
12];
13
14/**
15 * Special log function to clearly distinguish logs from the service worker.
16 * @param {string} text - The text to log
17 */
18function log(text) {
19	console.log("%cService Worker", "color: purple; font-weight: 600; background: white; padding: 0 5px; border-radius: 2px", text);
20}
21
22self.addEventListener("install", e => {
23	log("Installing");
24	e.waitUntil((async () => {
25		const cache = await caches.open(cacheName);
26		await cache.addAll(assetsToCache);
27	})());
28});
29
30self.addEventListener("fetch", e => {
31	log("Fetching definition");
32	e.respondWith((async () => {
33		const r = await caches.match(e.request);
34		if (r) {
35			log("Definition found in cache");
36			return r;
37		};
38		const response = await fetch(e.request);
39		const cache = await caches.open("defs");
40		log("Caching definition");
41		cache.put(e.request, response.clone());
42		return response;
43	})());
44});
45
46// When the name of the cache changes (because the app has been updated) delete the old cache
47self.addEventListener("activate", e => {
48	e.waitUntil(caches.keys().then(keys => {
49		return Promise.all(keys.map((key) => {
50			if (key === cacheName || key === "defs") return;
51			log(`Cache updated to ${cacheName.split("-")[1]}, old cache deleted`);
52			return caches.delete(key);
53		}));
54	}));
55});