37 lines
910 B
JavaScript
37 lines
910 B
JavaScript
const CACHE_NAME = 'Convert-currency';
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let resourcesToCache = ["./", "./bg.jpg", "./script.js", "./style.css"];
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self.addEventListener("install", e=>{
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e.waitUntil(
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caches.open(CACHE_NAME).then(cache =>{
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return cache.addAll(resourcesToCache);
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})
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);
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});
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// Cache and return requests
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self.addEventListener("fetch", e=>{
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e.respondWith(
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caches.match(e.request).then(response=>{
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return response || fetch(e.request);
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})
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);
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});
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// Update a service worker
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const cacheWhitelist = ['Convert-currency'];
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self.addEventListener('activate', 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.map(cacheName => {
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if (cacheWhitelist.indexOf(cacheName) === -1) {
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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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});
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