Have you encountered Cache API?

Cache API is a modern web API that allows web applications to programmatically manage caching of resources such as files, requests, and responses. It is often used together with Service Worker to create offline capabilities and improve performance.

With Cache API, you can:

• Save responses to network requests for reuse.
• Update cached data as needed.
• Selectively delete outdated resources.

Example of using Cache API:

caches.open('my-cache').then(cache => {
  return cache.addAll([
    '/index.html',
    '/styles.css',
    '/script.js'
  ]);
});

This allows the application to load resources quickly even when offline.