HTTP Caching Battlecards
Recall safe HTTP caching choices for common beginner web scenarios.
Scope What is the key difference between a private cache and a shared cache? A private cache is tied to one client; a shared cache can reuse responses for multiple users. Personalized data must not be accidentally reusable by other users. Compare Fingerprinted asset vs account dashboard HTML The URL and audience determine safe reuse. Objection Can we cache every GET response for a week because GET is read-only? The endpoint returns personalized invoice data. Your line Read-only does not mean safe to share. We need to decide who can reuse this response and whether it contains personalized data. Confusing…
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