53 lines
1.7 KiB
JavaScript
53 lines
1.7 KiB
JavaScript
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let CACHE_NAME = 'workavdenture-cache-v1';
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let urlsToCache = [
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'/'
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];
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self.addEventListener('install', function(event) {
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// Perform install steps
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event.waitUntil(
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caches.open(CACHE_NAME)
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.then(function(cache) {
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console.log('Opened cache');
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return cache.addAll(urlsToCache);
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})
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);
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});
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self.addEventListener('fetch', function(event) {
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event.respondWith(
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caches.match(event.request)
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.then(function(response) {
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// Cache hit - return response
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if (response) {
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return response;
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}
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return fetch(event.request).then(
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function(response) {
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// Check if we received a valid response
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if(!response || response.status !== 200 || response.type !== 'basic') {
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return response;
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}
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// IMPORTANT: Clone the response. A response is a stream
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// and because we want the browser to consume the response
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// as well as the cache consuming the response, we need
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// to clone it so we have two streams.
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var responseToCache = response.clone();
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caches.open(CACHE_NAME)
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.then(function(cache) {
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cache.put(event.request, responseToCache);
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});
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return response;
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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('activate', function(event) {
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//TODO activate service worker
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});
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