stevenhaskell
c16e2f763d
Added a service worker script to cache assets on local storage. In testing on desktop it worked. Need to test further on mobile.
72 lines
1.8 KiB
JavaScript
72 lines
1.8 KiB
JavaScript
const filesToCache = [
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'/',
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'css/appstyling-v2.css',
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'css/main.css',
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'js/Weight Calculation Script-Edited-Jquery-V4.js',
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'images/45lbs-Plate.svg',
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'images/35lbs-Plate.svg',
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'images/25lbs-Plate.svg',
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'images/10lbs-Plate.svg',
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'images/5lbs-Plate.svg',
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'images/2halflbs-Plate.svg',
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'images/favicon-16x16.png',
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'images/favicon-32x32.png',
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'index.html',
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];
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const staticCacheName = 'pages-cache-v1';
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self.addEventListener('install', event => {
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console.log('Attempting to install service worker and cache static assets');
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event.waitUntil(
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caches.open(staticCacheName)
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.then(cache => {
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return cache.addAll(filesToCache);
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})
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);
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});
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self.addEventListener('fetch', event => {
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console.log('Fetch event for ', event.request.url);
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event.respondWith(
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caches.match(event.request)
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.then(response => {
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if (response) {
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console.log('Found ', event.request.url, ' in cache');
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return response;
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}
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console.log('Network request for ', event.request.url);
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return fetch(event.request)
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.then(response => {
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// TODO 5 - Respond with custom 404 page
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return caches.open(staticCacheName).then(cache => {
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cache.put(event.request.url, response.clone());
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return response;
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});
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});
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}).catch(error => {
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// TODO 6 - Respond with custom offline page
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})
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);
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});
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self.addEventListener('activate', event => {
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console.log('Activating new service worker...');
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const cacheWhitelist = [staticCacheName];
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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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}); |