The authorization header must be base64 encoded. For example, if the credential
uses Aladdin as the username and OpenSesame as the password, then the field’s
value is the base64-encoding of Aladdin:OpenSesame, or QWxhZGRpbjpPcGVuU2VzYW1l.
Then the Authorization (or Proxy-Authorization) header must appear as:
Authorization: Basic QWxhZGRpbjpPcGVuU2VzYW1l
To verify our new Consumer has access, make a request with the header: