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service-worker.js
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service-worker.js
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let PRECACHE = 'moneycounter-horornis-v3_0_2';
let RUNTIME = 'runtime';
let version = '3.0.153';
// A list of local resources we always want to be cached.
let PRECACHE_URLS = [
'index.html',
'js/Sortable.min.js',
'style/main.css',
'images/apple-touch-icon.png',
'images/chrome-touch-icon-192x192.png',
'images/icon-128x128.png',
'images/icon-192x192.png',
'images/icon-512x512.png',
'images/ms-touch-icon-144x144-precomposed.png',
'images/logo.png',
'images/moneycounter-logo.png',
'images/site-logo.png',
'images/coin-1.png',
'images/coin-5.png',
'images/coin-10.png',
'images/coin-50.png',
'images/coin-100.png',
'images/coin-500.png',
'images/coin-1000.png',
'images/coin-2000.png',
'images/coin-5000.png',
'images/coin-10000.png',
];
// The install handler takes care of precaching the resources we always need.
self.addEventListener('install', event => {
event.waitUntil(
caches.open(PRECACHE)
.then(cache => cache.addAll(PRECACHE_URLS))
.then(self.skipWaiting())
);
});
// The activate handler takes care of cleaning up old caches.
self.addEventListener('activate', event => {
const currentCaches = [PRECACHE, RUNTIME];
event.waitUntil(
caches.keys().then(cacheNames => {
return cacheNames.filter(cacheName => !currentCaches.includes(cacheName));
}).then(cachesToDelete => {
return Promise.all(cachesToDelete.map(cacheToDelete => {
return caches.delete(cacheToDelete);
}));
}).then(() => self.clients.claim())
);
});
// The fetch handler serves responses for same-origin resources from a cache.
// If no response is found, it populates the runtime cache with the response
// from the network before returning it to the page.
self.addEventListener('fetch', event => {
// Skip cross-origin requests, like those for Google Analytics.
if (event.request.url.startsWith(self.location.origin)) {
event.respondWith(
caches.match(event.request).then(cachedResponse => {
if (cachedResponse) {
return cachedResponse;
}
return caches.open(RUNTIME).then(cache => {
return fetch(event.request).then(response => {
// Put a copy of the response in the runtime cache.
return cache.put(event.request, response.clone()).then(() => {
return response;
});
});
});
})
);
}
});