sw.js

const CACHE_NAME = 'smart-notes-v1';
const ASSETS_TO_CACHE = [
  '/',
  '/index.html',
  '/styles.css',
  '/app.js',
  'https://cdn.quilljs.com/1.3.6/quill.snow.css',
  'https://cdn.quilljs.com/1.3.6/quill.js',
  'https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0-beta3/css/all.min.css'
];

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

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

self.addEventListener('activate', event => {
  const cacheWhitelist = [CACHE_NAME];
  event.waitUntil(
    caches.keys().then(cacheNames => {
      return Promise.all(
        cacheNames.map(cacheName => {
          if (cacheWhitelist.indexOf(cacheName) === -1) {
            return caches.delete(cacheName);
          }
        })
      );
    })
  );
});