uni.request 中data设置为arraybuffer，返回数据为空，APP版本为3.8.12

{  
            url,  
            method: 'POST',  
            data: arrayBufferBody, //arrayBuffer类型数据  
            headers: {  
                accept: "application/x-protobuf",  
                "content-type": "application/x-protobuf",  
            },  
            dataType: "arraybuffer",  
            responseType: 'arraybuffer'  
}  

请求返回的数据  
{  
 "data": {},  
  "statusCode": 200，  
  "status": 200,  
  "statusText": "request:ok",  
 "errMsg": "request:ok",  
   ....  
}