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

You have to test it from the live domain (which you provided in the app).

I had the same problem when testing locally (using local domain).

Answer 2

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!
      }
   });
}

Answer 3

I had the same issue in IE. Flimzy's answer got me thinking. I tried running IE as administrator and it worked.

Answer 4

This was happening for me in Chrome, and was because Chrome was configured to block third-party cookies and data.

Once I made that configuration change, FaceBook is able to log me into my app without a problem.

• Chrome Settings
• Show advanced settings...
• Privacy
• Content settings...
• uncheck Block third-party cookies and site data

Answer 5

I too faced this problem in Chrome. However, in Firefox it worked as expected with the status returned as connected when the user had logged in previously.

I found a clue about this from an answer to the similar question here.

The root cause of this issue is, on FB.logout(), Chrome is not removing the cookie fblo_<your-app-id> which is somehow affecting FB.getLoginStatus() function to return unknown

Fix: On calling FB.logout(), you may programmatically delete the cookie fblo_<your-app-id>

FB.logout(function(response) {
  deleteCookie("fblo_" + fbAppId); // fblo_yourFBAppId. example: fblo_444499089231295
});

function deleteCookie(name) {
  document.cookie = name +'=; Path=/; Expires=Thu, 01 Jan 1970 00:00:01 GMT;';
}

Answer 6

I had the same problem, I fixed this by clearing all cache and cookies.