javascript - AngularJS: Promise in app.run() stuck in loop forever

I'm using app.run() in my AngularJS app to check whether a user is logged in before displaying the site to block access to various sites for non-registered users. I tried doing it with a promise because before, whenever I reloaded the page the isLoggedIn function would return false the getStatus hasn't returned the answer from the server yet.

Now using the promise, the site just calls itself in a loop forever, I guess because the process just repeats itself when the promise is resolved. Where am I going wrong and how could I fix this? Thanks in advance, help is much appreciated!

This is my code in app.js:

app.run(function($rootScope, $state, authService){
    $rootScope.$on('$stateChangeStart', function(event, next, nextParams, from, fromParams){
      event.preventDefault();
      authService.getUserStatus().then(function(){
        console.log(authService.isLoggedIn());
        if(next.access.restricted && !authService.isLoggedIn()){
          $state.go('index', {}, { reload: true });

        } else {
          $state.go(next, {}, { reload: true });
        }
      });
    });
  });

Here's the service authService.js:

(function(){
  var app = angular.module('labelcms');
  app.factory('authService', ['$q', '$timeout', '$http', function($q, $timeout, $http){

    var user = null;

    var isLoggedIn = function(){
      if(user){
        return true;
      } else {

        return false;
      }
    };

    var getUserStatus = function(){
      var deferred = $q.defer();

      $http.get('/api/user/status')
        .success(function(data){
          if(data.status){

            user = data.status;
            deferred.resolve();
          } else {
            user = false;
            deferred.resolve();
          }
        })
        .error(function(data){
          console.log('Error: ' + data);
          user = false;

          deferred.resolve();
        });

      return deferred.promise;
    };

    return ({
      isLoggedIn: isLoggedIn,
      getUserStatus: getUserStatus,
      login: login,

      logout: logout,
      signup: signup
    });

  }]);
})();