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sw.js
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sw.js
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const CACHE_NAME = "offline";
const urlsToCache = [
'index.html',
'app.js',
'style.css',
'Bender.woff',
'Bender-Bold.woff',
'favicon.ico'
];
self.addEventListener('install', event => {
event.waitUntil(
caches.open(CACHE_NAME)
.then(cache => cache.addAll(urlsToCache))
);
});
/* delete other caches */
self.addEventListener('activate', event => {
console.log('got activated');
event.waitUntil(
caches.keys().then(cacheNames => {
return Promise.all(
cacheNames.map(cacheName => {
if (cacheName !== CACHE_NAME) {
return caches.delete(cacheName);
}
})
);
})
);
});
self.addEventListener('fetch', event => {
if (event.request.method !== 'GET') {
return;
}
let response = fetch(event.request)
.then(response => {
// only cache the response if it's valid, 200,
// and basic (it's from the same origin,
// so we don't cache requests to third party origins
if (response && response.ok && response.type == 'basic') {
let responseClone = response.clone();
caches.open(CACHE_NAME).then(cache => cache.put(event.request, responseClone));
return response;
}
})
.catch(response => {
// console.log("fetch failed: ", response);
return caches.match(event.request);
});
// console.log("fetch event for : ", event.request);
// console.log("responding with: ", response);
event.respondWith(response);
});