57 lines
1.3 KiB
JavaScript
57 lines
1.3 KiB
JavaScript
const CACHE_NAME = 'weltzeit-cache-v1';
|
|
const PRECACHE_RESOURCES = [
|
|
'./',
|
|
'./index.html',
|
|
'./styles.css',
|
|
'./app.js',
|
|
'./zones.js',
|
|
'./manifest.webmanifest',
|
|
'./icons/icon-192.png',
|
|
'./icons/icon-512.png'
|
|
];
|
|
|
|
self.addEventListener('install', (event) => {
|
|
event.waitUntil(
|
|
caches.open(CACHE_NAME).then((cache) => cache.addAll(PRECACHE_RESOURCES))
|
|
);
|
|
});
|
|
|
|
self.addEventListener('activate', (event) => {
|
|
event.waitUntil(
|
|
caches.keys().then((cacheNames) =>
|
|
Promise.all(
|
|
cacheNames.map((cacheName) => {
|
|
if (cacheName !== CACHE_NAME) {
|
|
return caches.delete(cacheName);
|
|
}
|
|
return undefined;
|
|
})
|
|
)
|
|
)
|
|
);
|
|
});
|
|
|
|
self.addEventListener('fetch', (event) => {
|
|
if (event.request.method !== 'GET') {
|
|
return;
|
|
}
|
|
|
|
event.respondWith(
|
|
caches.match(event.request).then((cachedResponse) => {
|
|
if (cachedResponse) {
|
|
return cachedResponse;
|
|
}
|
|
|
|
return fetch(event.request)
|
|
.then((response) => {
|
|
const responseClone = response.clone();
|
|
caches.open(CACHE_NAME).then((cache) => {
|
|
cache.put(event.request, responseClone);
|
|
});
|
|
return response;
|
|
})
|
|
.catch(() => caches.match('./index.html'));
|
|
})
|
|
);
|
|
});
|