CORS withCredentials: Can Access-Control-Allow-Origin Have Multiple Domains?

When making a request with withCredentials set to true, the server's Access-Control-Allow-Origin response header can only specify a single origin. This means you cannot set multiple domains for allowed access.

For example, a response like this:

Access-Control-Allow-Origin: https://www.example.com

indicates that only requests originating from https://www.example.com are permitted to perform cross-domain operations. Requests from any other domains will be rejected. This restriction is designed to enhance security by preventing unauthorized access to sensitive data from untrusted sources.