posimai-log/sw.js

45 lines
1.4 KiB
JavaScript

// Posimai Log SW — stale-while-revalidate for static, network-first for posts
const CACHE = 'posimai-log-v1';
const STATIC = ['/', '/index.html', '/manifest.json', '/logo.png'];
self.addEventListener('install', e => {
e.waitUntil(
caches.open(CACHE).then(c => c.addAll(STATIC))
);
});
self.addEventListener('activate', e => {
e.waitUntil(
caches.keys().then(keys =>
Promise.all(keys.filter(k => k !== CACHE).map(k => caches.delete(k)))
).then(() => self.clients.claim())
);
});
self.addEventListener('fetch', e => {
if (e.request.method !== 'GET') return;
const url = e.request.url;
if (!url.startsWith(self.location.origin)) return;
// posts/ → network-first (content changes on every deploy)
if (url.includes('/posts/')) {
e.respondWith(
fetch(e.request).catch(() => caches.match(e.request))
);
return;
}
// static assets → stale-while-revalidate
e.respondWith(
caches.open(CACHE).then(cache =>
cache.match(e.request).then(cached => {
const network = fetch(e.request).then(res => {
if (res.ok && res.type === 'basic') cache.put(e.request, res.clone());
return res;
}).catch(() => cached);
return cached || network;
})
)
);
});