Add a custom timeout to FB.getLoginStatus()

gistfile1.js

/* Add this somewhere after FB.init() and before any calls to FB.getLoginStatus() */

// Add a timeout to FB.getLoginStatus()
var FB_STATUS_TIMEOUT = 1000 * 30;
var origGetLoginStatus = FB.getLoginStatus;
FB.getLoginStatus = function(callback, force) {
  // Start a timer
  var timedOut = false;
  var timeout = setTimeout(function() {
    timedOut = true;
    if (callback) callback({ error: 'timeout' });
  }, FB_STATUS_TIMEOUT);

  // Call the real FB.getLoginStatus()
  origGetLoginStatus(function(response) {
    if (!timedOut) {
      clearTimeout(timeout);
      if (callback) callback(response);
    }
  }, force);
};