posimai-brief/sw.js

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JavaScript
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const CACHE = 'posimai-brief-v1';
const ASSETS = ['/', '/index.html', '/manifest.json'];
const ORIGIN = self.location.origin;
self.addEventListener('install', e => {
e.waitUntil(caches.open(CACHE).then(c => c.addAll(ASSETS)));
self.skipWaiting();
});
self.addEventListener('activate', e => {
e.waitUntil(
caches.keys().then(keys =>
Promise.all(keys.filter(k => k !== CACHE).map(k => caches.delete(k)))
)
);
self.clients.claim();
});
self.addEventListener('fetch', e => {
// クロスオリジンFeed API・server.js・open-meteo 等)はキャッシュしない
if (!e.request.url.startsWith(ORIGIN)) return;
e.respondWith(
caches.match(e.request).then(cached => cached || fetch(e.request))
);
});