Sockets crashes with incomprehensible error message

[jestorocompany]

Hi,

we implemented a chat based on ws. I worked for quite a while without problems - but recently the socket seems to crash every 20 minutes or so with the error message:

RangeError: Invalid WebSocket frame: invalid status code 22373

We have no clue what exactly this message means and what to do about it.

Maybe, someone has a hint for us.

Thanks in advance
Michael

[lpinca]

It means a peer is receiving a close frame with an invalid status code:

const WebSocket = require('ws');

const wss = new WebSocket.Server({ port: 0 }, function () {
  const ws = new WebSocket(`ws://localhost:${wss.address().port}`);

  ws.on('open', function () {
    ws._socket.write(Buffer.from('8882000000005765', 'hex'));
  });
});

wss.on('connection', function (ws) {
  ws.on('error', console.error);
});

Add a listener for the 'error' event.

[lpinca]

I'm closing this as answered. Discussion can continue if needed.