Capture HTTP 401 with Angular.js interceptor

Question

I\'d like to implement authentication on a single page web app with Angular.js. The official Angular documentation recommends the using of interceptors:

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Answer 1

For AngularJS >1.3 use $httpProvider.interceptors.push('myHttpInterceptor');

.service('authInterceptor', function($q) {
    var service = this;

    service.responseError = function(response) {
        if (response.status == 401){
            window.location = "/login";
        }
        return $q.reject(response);
    };
})
.config(['$httpProvider', function($httpProvider) {
    $httpProvider.interceptors.push('authInterceptor');
}])