intercept error in angular

intercept error in angular.js

  (function(){
  var httpInterceptor = function ($provide, $httpProvider) {
    $provide.factory('httpInterceptor', function ($q) {
      return {
        response: function (response) {
          return response || $q.when(response);
        },
        responseError: function (rejection) {

          if(rejection.status === 401) {
            // you are not autorized
          }
          return $q.reject(rejection);
        }
      };
    });
    $httpProvider.interceptors.push('httpInterceptor');
  };
  angular.module("dashboard").config(httpInterceptor);
}());