uniappx的websocket不能传纯的二进制流？

分类：uni-app x

WEBSOCKET

怎么一发送就报错"io.dcloud.uts.ArrayBuffer cannot be cast to java.lang.String" ，发文本没问题。代码如下：
const Buf = new ArrayBuffer(24);
this.socketTask?.send({
data: Buf,
success: (res : any) => {
console.log(res)
},
fail: (err : any) => {
console.log(err)
},
} as SendSocketMessageOptions)