self.addEventListener('install', e => {
    e.waitUntil(
        caches.open('resendit-v1').then(cache => {
            return cache.addAll(['/', '/index.html', '/login.html', '/logo.png']);
        })
    );
});

self.addEventListener('fetch', e => {
    e.respondWith(
        caches.match(e.request).then(response => response || fetch(e.request))
    );
});