【报Bug】mui.ajax 增加 dataType="json"后，报406错误

环境：锤子T1 4G版

代码：

复制代码            mui.ajax(url, {  
                data: regInfo,  
//              dataType: "json",  
                type:"POST",  
                timeout: 20000,  
                success: function(data) {  
                    console.log(data);  
                },  
                error: function(xhr, type, errorThrown) {  
                    console.log(xhr.responseText);  
                    alert(xhr.responseText);  
                }  
            });

输出：
HTTP Status 406 he resource identified by this request is only capable of generating responses with characteristics not acceptable according to the request "accept" headers.

dataType: "json", 去掉后就没有问题了。