80 lines
2.3 KiB
JavaScript
80 lines
2.3 KiB
JavaScript
const CACHE_NAME = 'quartiles-pwa-v1';
|
|
|
|
const STATIC_ASSETS = [
|
|
'/',
|
|
'/index.html',
|
|
'/manifest.webmanifest',
|
|
'/icon.svg'
|
|
];
|
|
|
|
// Install: Cache initial shell assets
|
|
self.addEventListener('install', event => {
|
|
event.waitUntil(
|
|
caches.open(CACHE_NAME).then(cache => {
|
|
return cache.addAll(STATIC_ASSETS);
|
|
}).then(() => self.skipWaiting())
|
|
);
|
|
});
|
|
|
|
// Activate: Clean up old cache versions
|
|
self.addEventListener('activate', event => {
|
|
event.waitUntil(
|
|
caches.keys().then(keys => {
|
|
return Promise.all(
|
|
keys.map(key => {
|
|
if (key !== CACHE_NAME) {
|
|
return caches.delete(key);
|
|
}
|
|
})
|
|
);
|
|
}).then(() => self.clients.claim())
|
|
);
|
|
});
|
|
|
|
// Fetch: Stale-While-Revalidate for local assets, Network-First for HTML navigation
|
|
self.addEventListener('fetch', event => {
|
|
const request = event.request;
|
|
const url = new URL(request.url);
|
|
|
|
// Only handle GET requests
|
|
if (request.method !== 'GET') return;
|
|
|
|
// Version checks must always hit the network (never cached)
|
|
if (url.origin === location.origin && url.pathname === '/version.json') return;
|
|
|
|
// Handle HTML navigation requests (Offline support)
|
|
if (request.mode === 'navigate') {
|
|
event.respondWith(
|
|
fetch(request)
|
|
.then(response => {
|
|
if (response && response.status === 200) {
|
|
const responseClone = response.clone();
|
|
caches.open(CACHE_NAME).then(cache => cache.put(request, responseClone));
|
|
}
|
|
return response;
|
|
})
|
|
.catch(() => caches.match('/index.html') || caches.match('/'))
|
|
);
|
|
return;
|
|
}
|
|
|
|
// Same-origin static assets or Google Fonts: Stale-While-Revalidate
|
|
if (url.origin === location.origin || url.hostname.includes('googleapis.com') || url.hostname.includes('gstatic.com')) {
|
|
event.respondWith(
|
|
caches.match(request).then(cachedResponse => {
|
|
const fetchPromise = fetch(request)
|
|
.then(networkResponse => {
|
|
if (networkResponse && networkResponse.status === 200) {
|
|
const responseClone = networkResponse.clone();
|
|
caches.open(CACHE_NAME).then(cache => cache.put(request, responseClone));
|
|
}
|
|
return networkResponse;
|
|
})
|
|
.catch(() => cachedResponse);
|
|
|
|
return cachedResponse || fetchPromise;
|
|
})
|
|
);
|
|
}
|
|
});
|