const CACHE_NAME = ‘govwallet-v1’;
const urlsToCache = [‘/’, ‘/index.html’, ‘/favicon.png’];

self.addEventListener(‘install’, event => {
event.waitUntil(
caches.open(CACHE_NAME).then(cache => cache.addAll(urlsToCache)) );
});

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