Solution:Step 1: Understand must-revalidate effectmust-revalidate forces clients to check with server after max-age expires before using cache.Step 2: Analyze client behaviorClient using cached data after 2 hours (beyond max-age) without revalidation means it ignores must-revalidate.Final Answer:Cli

[Solved] A server sends:Cache-Control: max-age=3600, must-revalidateBut the client ignores must-revalidate and uses cached data after 2 hours. What is the issue? | Rest API

Rest API - Request and Response Format

A server sends:

Cache-Control: max-age=3600, must-revalidate

But the client ignores must-revalidate and uses cached data after 2 hours. What is the issue?

Amax-age overrides must-revalidate after expiration

BETag header is missing, so caching fails

CServer header syntax is incorrect

DClient is not respecting must-revalidate directive

Step-by-Step Solution

Solution:

Step 1: Understand must-revalidate effect
must-revalidate forces clients to check with server after max-age expires before using cache.
Step 2: Analyze client behavior
Client using cached data after 2 hours (beyond max-age) without revalidation means it ignores must-revalidate.
Final Answer:
Client is not respecting must-revalidate directive -> Option D
Quick Check:
Ignoring must-revalidate = client error [OK]

Quick Trick: must-revalidate requires client to check after expiry [OK]

Common Mistakes:

Thinking max-age overrides must-revalidate
Blaming server syntax for client caching
Assuming ETag is required for must-revalidate

Master "Request and Response Format" in Rest API

9 interactive learning modes - each teaches the same concept differently

Learn Why Deep Visual Try Challenge Project Recall Time

More Rest API Quizzes

A server sends:

Step 1: Understand must-revalidate effect

Step 2: Analyze client behavior

Final Answer:

Quick Check:

Want More Practice?