PWA quiz

Test your PWA knowledge with a free interactive quiz — 50 questions with answers and explanations. No signup needed to play.

What is `beforeinstallprompt`?

1. What is `beforeinstallprompt`?
2. What does `<link rel="manifest">` do?
3. What does "PWA" stand for?
4. What is the difference between Cache API and IndexedDB?
5. Which manifest field controls how the app appears when launched from the home screen?
6. Which API stores arbitrary key→Response pairs that the SW can use?
7. How can a page check if it is running as an installed PWA?
8. In a SW, what does `self.skipWaiting()` do?
9. What does `start_url` do in the manifest?
10. What does `scope` in the manifest control?
11. What event lets you intercept network requests inside a Service Worker?
12. A SW intercepts a POST request to `/api/save`. What is the right default behaviour?

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