In Chrome :
Access to fetch at 'https://api-worldcheck.refinitiv.com/v2/groups' from origin 'XXX-XXX' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. If an opaque response serves your needs, set the request's mode to 'no-cors' to fetch the resource with CORS disabled.
In Firefox :
Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://api-worldcheck.refinitiv.com/v2/groups. (Reason: CORS header ‘Access-Control-Allow-Origin’ missing).