Response interceptor for handling 401s

gistfile1.js

.config(function ($httpProvider) {
    var logsOutUserOn401 = ['$q', '$location', function ($q, $location) {
      var success = function (response) {
        return response;
      };

      var error = function (response) {
        if (response.status === 401) {
          //redirect them back to login page
          $location.path('/s/login');

          return $q.reject(response);
        } 
        else {
          return $q.reject(response);
        }
      };

      return function (promise) {
        return promise.then(success, error);
      };
    }];

    $httpProvider.responseInterceptors.push(logsOutUserOn401);
  })