关于uniapp在APP端websocket发送ArrayBuffer失败

在H5端调试完全没问题，但是在app端就有问题，使用了plus-websocket，也不行

socket.connectSocket({  
                    url: 'wss://cloud.alientek.com/connection/'+this.token+'/org/638?token='+this.randomstr()  
                });  
                socket.onSocketOpen((res)=>{  
                    this.socketopen = true;  
                    console.log('WebSocket连接已打开！');  

                    let byteArray2 = [0x38, 0x31, 0x35, 0x31, 0x31, 0x36, 0x39, 0x39, 0x30, 0x32, 0x35, 0x35, 0x36, 0x32, 0x39, 0x30, 0x31, 0x31, 0x35, 0x32];  
                    let buffer = new ArrayBuffer(21);  
                    let dataView = new DataView(buffer);  
                    let num = 1;  
                    dataView.setInt8(0, 1)  
                    for(let i=0;i<byteArray2.length;i++){  
                        dataView.setInt8(num+i, byteArray2[i]);  
                    }  
                    console.log(dataView, dataView.getInt8(0));  
                    socket.sendSocketMessage({  
                        data:dataView  
                    })  
                });  
                socket.onSocketMessage((res)=> {  
                    //console.log(res);  
                    var uint8_msg = new Uint8Array(res.data);  
                    var decodedString = String.fromCharCode.apply(null, uint8_msg);  
                    console.log(decodedString);   
                    // parse,转成json数据  
                    //    var data = JSON.parse(decodedString);  
                    // console.log(data);  
                });