blockbench/service_worker.js
2020-12-25 12:38:45 +01:00

69 lines
1.5 KiB
JavaScript

const cacheName = 'blockbench_3.8.0';
const staticAssets = [
'./index.html',
'./lang/de.json',
'./lang/en.json',
'./lang/es.json',
'./lang/fr.json',
'./lang/it.json',
'./lang/ja.json',
'./lang/ko.json',
'./lang/nl.json',
'./lang/pl.json',
'./lang/pt.json',
'./lang/ru.json',
'./lang/sv.json',
'./lang/zh.json',
'./assets/armor_stand.png',
'./assets/brush.png',
'./assets/hud.png',
'./assets/inventory_full.png',
'./assets/inventory_nine.png',
'./assets/item_frame.png',
'./assets/logo_cutout.svg',
'./assets/missing.png',
'./assets/north.png',
'./assets/player_skin.png',
'./assets/zombie.png',
'./favicon.png',
'./manifest.json',
];
self.addEventListener('install', async (event) => {
var cache = await caches.open(cacheName);
await cache.addAll(staticAssets);
return self.skipWaiting();
})
self.addEventListener('activate', (event) => {
self.clients.claim();
})
self.addEventListener('fetch', async (event) => {
var req = event.request;
var url = new URL(req.url);
if (url.origin == location.origin) {
event.respondWith(cacheFirst(req));
} else {
event.respondWith(networkAndCache(req));
}
})
async function cacheFirst(req) {
var cache = await caches.open(cacheName);
var cached = await cache.match(req);
return cached || fetch(req);
}
async function networkAndCache(req) {
var cache = await caches.open(cacheName);
try {
var fresh = await fetch(req);
await cache.put(req, fresh.clone());
return fresh;
} catch (err) {
var cached = await cache.match(req);
return cached;
}
}