我对带有HTTP授权标头的CORS请求有疑问：

在我看来，Web浏览器未通过POST请求发送Authorization标头，是否有解决方法？

这是我的Angular代码：

var app = angular.module('app', [])
    .config(['$httpProvider', function($httpProvider) {
        $httpProvider.defaults.useXDomain = true;
        delete $httpProvider.defaults.headers.common['X-Requested-With'];
    }]);

    app.controller('ctrl', function ($scope, $http) {
        $scope.insert = function () {

            $http.post('http://my.api.com/Insert',
                {
                    headers: {
                        'Authorization': 'Basic dGVzdDp0ZXN0',
                        'Content-Type': 'application/x-www-form-urlencoded'
                    },
                    data: {
                        'Code': 'test data'
                    },
                    withCredentials: true
                });
        };
    });

在服务器端，我在web.config中有这个

<httpProtocol >
  <customHeaders>
    <add name="Access-Control-Allow-Origin" value="*" />
    <add name="Access-Control-Allow-Headers" value="Cache-Control, Pragma, Origin, Authorization, Content-Type, X-Requested-With" />
    <add name="Access-Control-Allow-Methods" value="GET,POST,PUT,DELETE,OPTIONS" />
    <add name="Access-Control-Allow-Credentials" value="true" />
  </customHeaders>
</httpProtocol>