Javascript 如何使用ngResource获取响应头值？

我正在使用客户端的javascript angularJS库和用于后端实现的spring框架（java）开发一个应用程序。 对于其中一个服务，我在响应头中返回一个参数。问题是我无法在服务调用后获取此值

这是工厂：

angular.module('app')
        .factory('financeDocumentService', ['$resource', 'SERVER_FOR_SERVICES',
            function ($resource, SERVER_FOR_SERVICES) {
                var url = SERVER_FOR_SERVICES + '/sapi/finance/document';
                return $resource(url + '/:id', {id: '@id'}, {
                    'get': {method: 'GET'},
                    'isReferencedDocumentIdCompensated':
                            {
                                method: 'GET',
                                isArray: false,
                                url: url + '/is_compensated?referenced_document_id=:id',
                                params: {id: '@id'},
                                headers: {'Access-Control-Expose-Headers': 'IsCompensated'},
                                transformResponse: function (data, headers) {
                                    response = {};
                                    response.data = data;
                                    response.headers = headers();
                                    console.log(headers());
                                    return response;
                                }
                            }
                });
            }]);

这是控制器上的代码：

                            $scope.flightRecords[i].financeDocument =
                                    financeDocumentService
                                    .isReferencedDocumentIdCompensated(
                                        {id: $scope.flightRecords[i].id}).$promise.then(
                                        function(data) {
                                            console.log(data.headers);

                                        }
                                        );

结果是：

对象{cache control:“无缓存，无存储，最大年龄=0，必须…”，pragma:“无缓存”，expires:“0”}

这是标题列表值：

Access-Control-Allow-Origin: http://localhost:8383
Cache-Control: no-cache, no-store, max-age=0, must-revalidate
Content-Length: 0
Date: Thu, 29 Jun 2017 18:19:23 GMT
Expires: 0
Pragma: no-cache
Vary: Origin
X-Application-Context: application:local
X-Frame-Options: DENY
X-XSS-Protection: 1; mode=block
access-control-allow-credentials: true
isCompensated: false
x-content-type-options: nosniff

---

非常感谢

非常感谢@Shantanu！！现在它工作了！！