service-worker.js

const CACHE_NAME = 'pawmatch-v1';

self.addEventListener('install', (event) => {
    event.waitUntil(
        caches.open(CACHE_NAME).then((cache) => {
            return cache.addAll([
                './',
                './manifest.json',
                './assets/icon-192.png',
                './assets/icon-512.png'
            ]);
        })
    );
});

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