Hello, i'm having an issue with a POST request, to generate a "request token".

xhr.open('POST', 'https://api.themoviedb.org/4/auth/request_token ');
xhr.setRequestHeader('Authorization', 'Bearer TOKEN');
xhr.setRequestHeader('content-type', 'application/json;charset=utf-8')

Doing so, i get the following message:

Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at ‘https://api.themoviedb.org/4/auth/request_token’. (Reason: Credential is not supported if the CORS header ‘Access-Control-Allow-Origin’ is ‘*’).

Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://api.themoviedb.org/4/auth/request_token. (Reason: CORS request did not succeed).

Thank you for your time :)