官方DEMO ISV接入方式 jsapi授权出错

  dd.config({
            agentId: '<%= appId%>',
            corpId: '<%= corpId%>',
            timeStamp: <%= timestamp%>,
            nonceStr: '<%= nonceStr%>',
            signature: '<%= signature%>',
            jsApiList: ['runtime.info',
        'biz.contact.choose',
        'device.notification.confirm',
        'device.notification.alert',
        'device.notification.prompt',
        'biz.ding.post']
        });
        dd.ready(function () {
            //dd.runtime.info({
            //    onSuccess: function (info) {
            //        alert('runtime info: ' + JSON.stringify(info));
            //    },
            //    onFail: function (err) {
            //        alert('fail: ' + JSON.stringify(err));
            //    }
            //});
            alert("dd.ready ok");
            //logger.i('dd.ready rocks!');
            dd.runtime.permission.requestAuthCode({
                corpId:  '<%= corpId%>',
                onSuccess: function (info) {
                    alert('authcode: ' + info.code);
                    $.ajax({
                        url: '../../Ajax/DingHandler.ashx?method=getuserinfo&code=' + info.code,
                        type: 'GET',
                        success: function (data, status, xhr) {
                                alert(data);
                        },
                        error: function (xhr, errorType, error) {
                            alert(errorType + ', ' + error);
                        }
                    });
                },
                onFail: function (err) {
                    alert('fail: ' + JSON.stringify(err));
                }
            });
        });


错误：dd error:{"message":"权限校验失败 Code：52019-Message:null","errorCode":3}
求助！！！