【报Bug】nvue页面下mqtt无法使用，显示白屏

示例代码：

// mqtt与服务端连接  
            connect: function() {  
                let hosts = 'wx://' + this.serve.host + ':' + this.serve.wsport + this.serve.path;  
                let that = this;  
                if (client == null || client.connected == false) {  
                    // console.log(hosts, this.options);  
                    client = mqtt.connect(hosts, this.options);  
                    client.on("connect", () => {  
                        console.log('连接成功')  
                        client.subscribe(that.onTopic, {  
                            qos: 0  
                        }, function(res) {  
                            if (!res) {  
                                console.log(res, '订阅成功');  
                                that.onMessage();  
                            }  
                        })  
                    });  
                } else {  
                    console.log('mqtt连接失败');  
                }  
                client.on('reconnect', function(error) {  
                    console.log('正在重连......')  
                }).on('error', function(error) {  
                    console.log('连接失败...', error)  
                    that.connect();  
                }).on('end', function() {  
                    console.log('连接断开')  
                })  
            },

操作步骤：

import mqtt from '../../utils/mqtt.js';  
var client;  
export default {  
    onShow: function() {  
        this.connect();  
    },  
    methods: {  
        // mqtt与服务端连接  
            connect: function() {  
                let hosts = 'wx://' + this.serve.host + ':' + this.serve.wsport + this.serve.path;  
                let that = this;  
                if (client == null || client.connected == false) {  
                    // console.log(hosts, this.options);  
                    client = mqtt.connect(hosts, this.options);  
                    client.on("connect", () => {  
                        console.log('连接成功')  
                        client.subscribe(that.onTopic, {  
                            qos: 0  
                        }, function(res) {  
                            if (!res) {  
                                console.log(res, '订阅成功');  
                                that.onMessage();  
                            }  
                        })  
                    });  
                } else {  
                    console.log('mqtt连接失败');  
                }  
                client.on('reconnect', function(error) {  
                    console.log('正在重连......')  
                }).on('error', function(error) {  
                    console.log('连接失败...', error)  
                    that.connect();  
                }).on('end', function() {  
                    console.log('连接断开')  
                })  
            },  
    }  
}  

预期结果：

正常发消息连接，并且不白屏，一切显示正常。

实际结果：

页面白屏并报错。