AngularJS:在 $http.post 请求之前的 OPTIONS 预检调用

I've eliminated the possibly of a problem with the server, I think, by changing the host to a non-existent server. Still seeing the same behavior.

这里有一些代码:

App.services.factory('AuthService', function ($http, $location, $q) {

    var currentUser;

    return {
        authenticate: function (email, password) {

            //promise to return
            var deferred = $q.defer();

            var authRequest = $http.post('https://this.does.not.exist.com:3001/authenticate', {email: email, password: password});

            authRequest.success(function (data, status, header, config) {
                currentUser = data;
                console.log('currentUser in service set to:');
                console.log(currentUser);
                //resolve promise
                deferred.resolve();
            });

            authRequest.error(function (data, status, header, config) {
                console.log('authentication error');
                console.log(status);
                console.log(data);
                console.log(header);
                console.log(config);

                //reject promise
                deferred.reject('authentication failed..');
            });

            return deferred.promise;
        },
        isAuthenticated: function () {
            return currentUser !== undefined;
        }
    };
});

和 HTTP 配置:

App.config(['$httpProvider', function ($httpProvider) {

    $httpProvider.defaults.useXDomain = true;
    //$httpProvider.defaults.headers.common = {};

    console.log('logging out headers');
    console.log($httpProvider.defaults);
    console.log($httpProvider.defaults.headers.common);
    console.log($httpProvider.defaults.headers.post);
    console.log($httpProvider.defaults.headers.put);
    console.log($httpProvider.defaults.headers.patch);
    console.log('end logging out headers');

    $httpProvider.defaults.headers.common = {Accept: "application/json, text/plain, */*"};
    $httpProvider.defaults.headers.post = {"Content-Type": "application/json;charset=utf-8"};

    console.log('after: logging out headers');
    console.log($httpProvider.defaults.headers.common);
    console.log($httpProvider.defaults.headers.post);
    console.log($httpProvider.defaults.headers.put);
    console.log($httpProvider.defaults.headers.patch);
    console.log('after: end logging out headers');

    $httpProvider.interceptors.push(function ($location, $injector) {
        return {
            'request': function (config) {

                console.log('in request interceptor!');

                var path = $location.path();
                console.log('request: ' + path);

                //injected manually to get around circular dependency problem.
                var AuthService = $injector.get('AuthService');
                console.log(AuthService);
                console.log(config);

                if (!AuthService.isAuthenticated() && $location.path() != '/login') {
                    console.log('user is not logged in.');
                    $location.path('/login');
                }

                //add headers
                console.log(config.headers);
                return config;
            }
        };
    });
}]);

推荐答案

这感觉可能与您在本地主机上访问 https 端点有关.这意味着您可能正在使用某种自签名 SSL 证书，这可能意味着 Chrome 认为它不受信任.