When developing web applications, you may sometimes see the following content in your browser's developer tools or error logs. "Blocked by CORS policy" "Access ...

This website has an insecure CORS configuration in that it trusts all subdomains regardless of the protocol. To solve the lab, craft some JavaScript that uses CORS to retrieve the administrator's API ...

This website has an insecure CORS configuration in that it trusts the "null" origin. To solve the lab, craft some JavaScript that uses CORS to retrieve the administrator's API key and upload the code ...