CORS Tester
// send a real request from your browser · inspect CORS headers · debug preflight
REQUEST
GET
POST
PUT
PATCH
DELETE
OPTIONS
HEAD
CUSTOM HEADERS
✕
+ Add header
REQUEST BODY
credentials: include (sends cookies)
Send OPTIONS preflight first
▶ Send Request
CORS ANALYSIS
RESPONSE HEADERS
RESPONSE BODY
📋 Copy body
✕