Design a Service Worker caching strategy for a news app
TESTS: Matching resources to caching patterns and justifying speed vs freshness. OUTLINE: Cache First for the app shell, Stale-While-Revalidate for static assets, and Network First for article APIs. RED FLAG: One strategy everywhere or ignoring cache quotas.
WHAT IT TESTS: Your ability to match resource characteristics to Service Worker caching patterns and explain speed versus freshness trade-offs. ANSWER OUTLINE: The app shell uses Cache First for instant offline rendering; CSS and JS use Stale-While-Revalidate for fast loads with background updates; article APIs use Network First with a short fallback cache so offline readers see recent content, not stale headlines. RED FLAG: Recommending one pattern for everything or ignoring cache eviction and storage quotas.
Read the original → web.dev
- #service-worker
- #caching
- #pwa
- #performance
- #web-apis
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