myapp.js

angular.module('myApp', ['ui.bootstrap', 'ui.router'])
.config(function($locationProvider, $stateProvider, $urlRouterProvider,  $httpProvider){
    $locationProvider.html5Mode({
        enabled: true,
        requireBase: false
    })
    $urlRouterProvider.otherwise('/login')
    $httpProvider.defaults.headers.common['X-Requested-With'] = 'XMLHttpRequest'

    $httpProvider.interceptors.push(function($q, $location) { 
        return { 
            response: function(response) {  
                return response 
            }, 
            responseError: function(response) { 
                if (response.status === 401) $location.url('/login') 
                    return $q.reject(response); 
            } 
        }; 
    })

})