Given this CORS configuration for an S3 bucket, what will happen when a browser sends a PUT request from https://example.com?

medium📝 Predict Output Q4 of 15

AWS - API Gateway

{"CORSRules": [{"AllowedOrigins": ["https://example.com"], "AllowedMethods": ["GET", "POST"]}]}

AThe request will succeed only if the bucket is public

BThe PUT request will succeed

CThe PUT request will be blocked by CORS policy

DThe PUT request will be redirected to GET

Step-by-Step Solution

Solution:

Step 1: Analyze AllowedMethods
The configuration allows only GET and POST methods.
Step 2: Check request method
The browser sends a PUT request, which is not allowed.
Final Answer:
The PUT request will be blocked by CORS policy -> Option C
Quick Check:
AllowedMethods excludes PUT = Request blocked [OK]

Quick Trick: AllowedMethods must include request method to allow it [OK]

Common Mistakes:

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