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Error during WebSocket handshake: Unexpected response code: 400

See original GitHub issue

I’m using npm peer@0.2.10 with socket.io using the Express server.

my package.json dependencies

"dependencies": {
   "express": "^4.17.1",
   "peer": "^0.2.10",
   "socket.io": "^1.4.6"
 }

The error does not happen in peer@0.2.8 and my simple code is as follow.

server.js

const express = require('express');
const PeerServer = require('peer').PeerServer;
const ExpressPeerServer = require('peer').ExpressPeerServer;
const socket_io = require('socket.io');

const app = express()
const port = 3000

app.use(function(req, res, next) {
	res.header("Access-Control-Allow-Origin", "*");
	res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
	next();
});

app.get('/', (req, res) => {
	res.sendFile('/var/www/html/mypeer.html');
})

const server = app.listen(port, () => console.log(`Example app listening on port ${port}!`))

const peerserver = ExpressPeerServer(server, {debug: true} );
app.use('/myapp', peerserver);

peerserver.on('error', (client) => {
	console.log('error');
});

peerserver.on('connection', (client) => {
	console.log(`The client ${client} is connected`);
});


var rec_sockio = socket_io.listen(server);
rec_sockio.sockets.on('connection', function(socket) {
	console.log('socket is connected', socket.id);
});

mypeer.html

<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Peer Test</title>
</head>
<body>

	<script src="https://unpkg.com/peerjs@1.0.2/dist/peerjs.min.js"></script>
	<script type="text/javascript" src="http://192.168.33.10:3000/socket.io/socket.io.js"></script>
	<script>
		const peer = new Peer({host: '192.168.33.10', port: 3000, path: '/myapp'});
		console.log(`peer`, peer);

		peer.on('error', function(err) {
			console.log(`err`, err);
		});

		var sock_client = io.connect('192.168.33.10:3000');
		sock_client.on('connect', function() {
			console.log(`sock_client connect`);
		});
	</script>
</body>
</html>

I got this error

WebSocket connection to 'ws://192.168.33.10:3000/socket.io/EIO=3&transport=websocket&sid=tQ5aa4lRzqMlGmX7AAAB' failed: Error during WebSocket handshake: Unexpected response code: 400

The error seems having problem with the transport websocket but polling seems okay.

Issue Analytics

State:
Created 4 years ago
Comments:20 (6 by maintainers)

Top GitHub Comments

2reactions

mafikescommented, Jun 19, 2020

The same issue. Server “peer”: “^0.5.3” and client 1.2.0. 😕

2reactions

cgfarmer4commented, May 17, 2020

same 1.2 and 0.5.3

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