In short
Using HTTP cache headers, service workers, or in-app caching to avoid redundant network requests and speed up repeat visits.
How to learn this
- 1Set proper `Cache-Control` headers on static assets in a project.
- 2Learn the difference between `no-cache`, `no-store` and `max-age`.
- 3Explore how a service worker can cache assets for offline or fast repeat loads.
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