sw.js

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`52d68b59` 2026-10-24 Pavel Safronov	1	/**
	2	* The service worker that makes the game installable and playable offline (user request,
	3	* 2026-10-23). Network first: online, every request goes to the network as usual (so a new
	4	* deploy is picked up at once) and a copy is kept; offline, the copy is used. Only this site's
	5	* own GET requests are touched. Registered by main.ts in the built game only.
	6	*/
	7	const CACHE = 'explodorama'
	8
	9	self.addEventListener('install', () => self.skipWaiting())
	10	self.addEventListener('activate', (e) => e.waitUntil(self.clients.claim()))
	11
	12	self.addEventListener('fetch', (e) => {
	13	const request = e.request
	14	if (request.method !== 'GET' \|\| new URL(request.url).origin !== self.location.origin) return
	15	e.respondWith(
	16	fetch(request)
	17	.then((response) => {
	18	if (response.ok) {
	19	const copy = response.clone()
	20	e.waitUntil(caches.open(CACHE).then((cache) => cache.put(request, copy)))
	21	}
	22	return response
	23	})
	24	.catch(() => caches.match(request).then((cached) => cached ?? Response.error())),
	25	)
	26	})