← CORS Explained: The Complete Guide (with Cheat Sheet)Quiz
CORS: test yourself
Eight questions on the same-origin policy, simple vs. preflighted requests, credentials, and the header combinations that actually work.
questions8
pass mark70%
resultsat the end
No account needed. Answer all 8 questions, then see your score with every answer explained and a reference to the spec or MDN — pass and you can claim a certificate.