When using postman to fire post request I get this message. Does anyone has idea how to disable it? In this case it is post to register user so no authentification is required.
If you are using Drupal 8 to create a POST rest api with oauth2, and postman to test it, you can, in postman, create a new tab using GET, and point to the url:
Then send the request and copy the response token to the POST tab in postman, under the Headers: