【报Bug】支付宝云的Unicloud 中使用websocket一直报异常"java.nio.channels.ClosedChannelException"

示例代码：

module.exports = {  
    _before: function() { // 通用预处理器  

    },  
    _onWebsocketConnection: async function(event) {  
        console.log("onWebsocketConnection", event)  
    },  
    _onWebsocketMessage: async function(event) {  
        console.log("onWebsocketMessage", event)  
        const connectionId = event.connectionId;  
        const ws = uniCloud.webSocketServer()  
        await ws.close(connectionId)  
    },  
    _onWebsocketDisConnection: async function(event) {  
        console.log("onWebsocketDisConnection", event)  

    },  
    _onWebsocketError: async function(event) {  
        console.log("onWebsocketError", event)   
    },  
    getWsURL: async function() { // 获取websocket连接地址  
        console.log("getWsURL被调用")  
        const wsRequestParamsObj = {  
            hostIP: "192.1.1.1",  
            command: "1"  
        }  
        const ws = uniCloud.webSocketServer()  
        const hostURL = await ws.signedURL("web-socket-co", wsRequestParamsObj)  
        return hostURL  
    },  

}

操作步骤：

1. 上传云对象
2. 用apifox请求URL化的云对象的getWsURL获得ws的连接地址
3. 用连接地址连接
4. 发送一条消息

预期结果：

没有进入到_onWebsocketError事件中

实际结果：

进入到了_onWebsocketError事件中,并且报错:"java.nio.channels.ClosedChannelException"