Azure API Management CORS Mistakes and Fixes
CORS in Azure API Management looks easy right up until the browser starts throwing useless errors and your API works fine in Postman. That’s the trap: CORS is a browser enforcement layer, and APIM adds another layer of policy behavior on top of it. If you put the policy in the wrong scope, return the wrong origin, or forget how preflight requests work, you get a mess that’s hard to debug. ...