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sw.js
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sw.js
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var version = 'v1.2';
const staticCacheName = 'critter-tracker-' + version;
const assets = [
'/critter-tracker/',
'/critter-tracker/index.html',
'/critter-tracker/style.css',
'/critter-tracker/script.js',
'/critter-tracker/critters.js',
'/critter-tracker/manifest.json',
'/critter-tracker/images/favicon.png',
'/critter-tracker/images/icon-512.png',
'/critter-tracker/images/sprites/fish.png',
'/critter-tracker/images/sprites/bugs.png',
'/critter-tracker/images/sprites/creatures.png',
];
// install event
self.addEventListener('install', evt => {
evt.waitUntil(
caches.open(staticCacheName).then((cache) => {
console.log('caching assets');
cache.addAll(assets);
})
);
});
//activate event
self.addEventListener('activate', evt => {
evt.waitUntil(
caches.keys().then(keys => {
return Promise.all(keys
.filter(key => key !== staticCacheName)
.map(key => caches.delete(key))
);
})
);
});
//fetch event
self.addEventListener('fetch', evt => {
evt.respondWith(
caches.match(evt.request).then(cacheRes => {
return cacheRes || fetch(evt.request);
})
);
});