You added Flask-Compress to your Flask app but notice responses are not compressed. Which of these is the most likely cause?

medium📝 Debug Q14 of 15

Flask - Middleware and Extensions

AYou forgot to call <code>Compress(app)</code> after creating the Flask app

BYou used <code>Compress()</code> without passing the app instance

CThe client does not send <code>Accept-Encoding</code> header

DAll of the above

Step-by-Step Solution

Solution:

Step 1: Check Flask-Compress initialization
If you don't call Compress(app) or call Compress() without app, compression won't activate.
Step 2: Consider client headers
Compression only happens if the client sends Accept-Encoding header indicating support.
Step 3: Combine causes
All these issues can cause no compression, so the correct answer is all of the above.
Final Answer:
All of the above -> Option D
Quick Check:
Initialization and client headers both matter = D [OK]

Quick Trick: Check app init and client headers for compression issues [OK]

Common Mistakes:

MISTAKES

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