FB.getLoginStatus returns status unknown

Question

When calling FB.getLoginStatus using a valid Facebook App the response status is always unknown. Exact response is {authResponse: undefined, status: \"unknown\"}.

Answer 1

When I checked, the status is showing "not_authorized" and that's fine, since I've not authorized the app yet.

To complete the flow, you should add the FB.login whenever user id is not authorized or not logged-in to facebook:

window.fbAsyncInit = function(){
    FB.init({ appId:'{APP-ID}', status:true,  cookie:true, xfbml:true});
    FB.getLoginStatus(function(response){
        if (response.status === 'connected') {
           //proceed
        } else if (response.status === 'not_authorized') {
           login();
        } else {
          login();
        }
    });
};

function login(){
   FB.login(function(response) {
      if (response.authResponse) {
         // proceed
      } else {
         // not auth / cancelled the login!
      }
   });
}