75 lines
2.0 KiB
JavaScript
Executable File
75 lines
2.0 KiB
JavaScript
Executable File
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const blacklist = [
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'jamesbarnsley.co.nz',
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'following/contains',
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'followers/contains',
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'me/tracks',
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'me/albums',
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'me/following',
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'refresh_spotify_token'
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];
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function inBlacklist(url) {
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for (let item of blacklist) {
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if (url.indexOf(item) >= 0){
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return true;
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}
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}
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}
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self.addEventListener('activate', function(event) {
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event.waitUntil(
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caches.keys().then(cacheNames => {
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return Promise.all(
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cacheNames.filter(cacheName => {
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// Return true if you want to remove this cache,
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// but remember that caches are shared across
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// the whole origin
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return true;
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}).map(cacheName => {
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return caches.delete(cacheName);
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})
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);
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})
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);
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});
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self.addEventListener('fetch', event => {
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const { request } = event;
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event.respondWith(
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// Opens Cache objects that start with 'font'.
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caches.open('iris').then(cache => {
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return cache.match(request)
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.then(response => {
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if (response) {
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return response;
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}
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// Not cached, so we make the request, return that and also save response in cache
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return fetch(request)
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.then(liveResponse => {
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const isBlacklisted = inBlacklist(request.url);
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// Only cache successful GET requests
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if (!isBlacklisted &&
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request.method === 'GET' &&
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liveResponse.status >= 200 &&
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liveResponse.status < 400
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) {
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cache.put(request, liveResponse.clone());
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} else {
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console.info(`Not caching ${isBlacklisted ? '(blacklisted) ' : ''}${request.method} ${request.url}`);
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}
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return liveResponse;
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});
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// Exceptions from match() or fetch()
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}).catch(error => {
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throw error;
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});
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})
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);
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}); |