本地win10调试一直报错，Bad request for Register service

    websocket = new WebSocket("ws://127.0.0.1:1238");

    // 连接成功建立时触发
    websocket.onopen = function () {
    };

    // 接收到服务器消息时触发
    websocket.onmessage = function (event) {

    };

    // 连接关闭时触发
    websocket.onclose = function (event) {
        console.log("onclose",event)
    };

    // 发生错误时触发
    websocket.onerror = function (error) {
        console.log("onerror",error)
    };