Javascript 无法与FireFox中的socket.io建立连接（xhr轮询错误）

我正在使用socket.io1.4.8和firefox48。我有一个在chrome中运行良好的示例代码：

// Server
var express = require('express');
var app = express(); var fs = require('fs');
var option = {
    key: fs.readFileSync('key.pem'),
    cert: fs.readFileSync('cert.pem')
};
var https = require('https').createServer(options, app).listen(process.env.PORT || 3000);
var io = require('socket.io')(https);

io.on('connection', function(socket) {
    socket.on('login', function(username) {
        console.log('[login]', username);
    };
}

// Client
var socket = io('https://127.0.0.1:3000');
var username = 'test';
socket.emit('login', username);

但当我在firefox中运行时，出现了一个

错误：xhr poll错误。

以下是来自客户端的日志：

socket.io-client:url "parse https://127.0.0.1:3000" +0ms
socket.io-client "new io instance for https://127.0.0.1:3000" +3ms
socket.io-client:manager readyState closed +3ms
socket.io-client:manager "opening https://127.0.0.1:3000" +1ms
engine.io-client:socket creating transport "polling" +1ms
engine.io-client:polling polling +1ms
engine.io-client:polling-xhr xhr poll +2ms
engine.io-client:polling-xhr "xhr open GET: https://127.0.0.1:3000/socket.io/?EIO=3&transport=polling&t=LTvQYL3" +1ms
engine.io-client:polling-xhr xhr data null +1ms
engine.io-client:socket setting transport polling +2ms
socket.io-client:manager connect attempt will timeout after 8000 +1ms
socket.io-client:manager readyState opening +3ms
engine.io-client:socket socket error {"type":"TransportError","description":0} +74ms
socket.io-client:manager connect_error +1ms
socket.io-client:manager cleanup +0ms

---

如何修复此错误？谢谢。

对我来说，原因是Firefox不信任站点的自签名证书。转到套接字url，您将看到一个对话框，可以将不受信任的站点添加到异常中。

这并不能回答此问题。一旦你有足够的信息，你就可以在任何帖子上发表[评论]（）；相反