const CACHE_NAME = “phase14-cache-v1”;
const URLS_TO_CACHE = [
“/”,
“/index.html”,
“/manifest.json”,
“/service-worker.js”,
“/icon-192.png”,
“/icon-512.png”
];

self.addEventListener(“install”, event => {
event.waitUntil(
caches.open(CACHE_NAME).then(cache => {
return cache.addAll(URLS_TO_CACHE);
})
);
});

self.addEventListener(“fetch”, event => {
event.respondWith(
caches.match(event.request).then(response => {
return response || fetch(event.request);
})
);
});

self.addEventListener(“activate”, event => {
event.waitUntil(
caches.keys().then(cacheNames => {
return Promise.all(
cacheNames.map(cache => {
if (cache !== CACHE_NAME) {
return caches.delete(cache);
}
})
);
})
);
});