I want to authentificate a user using an embedded browser with javafx. I can get the PIN (String) that twitter gives me but when I try to create the AccesToken it does not create it correctly. (I can't get my token or tokenSecret, both null).

I use other browser such as djnativeswing ,it can get AccesToken,but javafx can't.what's the problem?Is it javafx can't support it ? If you know about it ,please tell me,
thank you very much!