PWA

No questions match those filters.

1. 1 What is a Service Worker and how does its lifecycle (install, activate, fetch) work? Medium
2. 2 Explain the Cache API and how a Service Worker implements offline-first caching strategies (cache-first, network-first, stale-while-revalidate). Hard
3. 3 How does a Service Worker enable Push Notifications and Background Sync? Hard
4. 4 Explain the scope of a Service Worker and common pitfalls when updating a deployed Service Worker. Hard
5. 5 Write a basic Service Worker `fetch` handler implementing a stale-while-revalidate strategy. Hard