not able to focus on current facebook login windows popup

[tikattan]

currently there is no way to focus on the facebook popup.

if I call fb.login twice, it will open 2 popup. when I click login button, I would like to focus on the login popup instead if the login popup exists.

onLogin()  {
   fb.login()
      .then((response: LoginResponse) => {
      })
      .catch((error: any) => {
      });
}