Beginner
Web & Software Development
Q25 / 100
What is CORS (Cross-Origin Resource Sharing)?
Correct! Well done.
Incorrect.
The correct answer is B) A browser security mechanism controlling which origins can access resources on a server, using HTTP headers to allow/deny cross-origin requests
B
Correct Answer
A browser security mechanism controlling which origins can access resources on a server, using HTTP headers to allow/deny cross-origin requests
Explanation
Same-origin policy blocks cross-origin AJAX by default. CORS headers (Access-Control-Allow-Origin) allow the server to whitelist origins. Preflight OPTIONS request checks permissions for non-simple requests.
Progress
25/100