Why might setting Cache-Control: public, max-age=86400 on a Remix loader response cause stale data issues?

hard📝 Conceptual Q10 of 15

Remix - Performance

Why might setting Cache-Control: public, max-age=86400 on a Remix loader response cause stale data issues?

ABecause max-age=86400 disables caching

BBecause public caching allows proxies to cache data which may not update immediately

CBecause public means only the browser caches data

DBecause max-age=86400 means cache expires immediately

Step-by-Step Solution

Solution:

Step 1: Understand public directive
public allows shared caches like proxies to store the response.
Step 2: Understand max-age=86400
max-age=86400 caches data for 24 hours, so proxies may serve stale data during this time.
Step 3: Identify stale data risk
Proxies caching for long time can cause users to see outdated data until cache expires.
Final Answer:
Because public caching allows proxies to cache data which may not update immediately -> Option B
Quick Check:
Public + long max-age risks stale proxy cache [OK]

Quick Trick: Public cache can cause stale proxy data if max-age is long [OK]

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