Files
2026-06-07 00:33:58 +09:00

51 lines
1.1 KiB
JavaScript

const CACHE_NAME = 'seoul-shortcuts-v1';
const CORE_ASSETS = [
'./',
'./assets/favicon.svg',
'./assets/icon-32.png',
'./assets/icon-192.png',
'./assets/icon-512.png',
'./assets/apple-touch-icon.png',
'./manifest.webmanifest'
];
self.addEventListener('install', event => {
event.waitUntil(
caches.open(CACHE_NAME)
.then(cache => cache.addAll(CORE_ASSETS))
.catch(() => undefined)
);
self.skipWaiting();
});
self.addEventListener('activate', event => {
event.waitUntil(
caches.keys().then(keys => Promise.all(
keys.filter(key => key !== CACHE_NAME).map(key => caches.delete(key))
))
);
self.clients.claim();
});
self.addEventListener('fetch', event => {
if (event.request.method !== 'GET') {
return;
}
const url = new URL(event.request.url);
if (url.origin !== location.origin) {
return;
}
event.respondWith(
fetch(event.request)
.then(response => {
const copy = response.clone();
caches.open(CACHE_NAME).then(cache => cache.put(event.request, copy));
return response;
})
.catch(() => caches.match(event.request))
);
});