Remote DB and JWT data

BIZ TMS RemoteDB
3
I made a bit progress but now I am stuck:

I added the parameter
TJwtMiddleware.create(Serversecret,true));
to disallow anonymous access.

Now remoteDB returns "Authentication failes - 401" without token but also if I supply the token. Perhaps the way I am adding the token is wrong?
...
  FDB := TRemoteDBDatabase.Create(nil);
  FDB.OnHttpClientCreate := OnHttpClientCreate;
  FDB.UserName := '';
  FDB.PassWord := '';
  FDB.ServerUri := Uri;
  FDB.Compress := True;
...

procedure TDB.OnHttpClientCreate(Sender: TObject; Client: THTTPClient);
begin
  // Allow self signed certificate (as we only use it for encryption)
  TWinHttpEngine(Client.Engine).BeforeWinHttpSendRequest := 
      procedure(Handle: HINTERNET)
    var
      dwFlags: DWORD;
    begin
      dwFlags := SECURITY_FLAG_IGNORE_UNKNOWN_CA or
        SECURITY_FLAG_IGNORE_CERT_WRONG_USAGE or
        SECURITY_FLAG_IGNORE_CERT_CN_INVALID or
        SECURITY_FLAG_IGNORE_CERT_DATE_INVALID;
      WinHttpCheck(WinHttpSetOption(Handle, WINHTTP_OPTION_SECURITY_FLAGS, @dwFlags, SizeOf(dwFlags)));
    end;
  // set the authentication JsonWebToken
  Client.OnSendingRequest :=
      procedure(Req: THttpRequest)
    begin
      Req.Headers.SetValue('Authorization', 'Bearer ' + FJWT);
    end;
end;