I make a node js app with socket io,

it works in local, I wanted to pass it online via a hosting that uses Cpanel and I have as error in my console: WebSocket connection to 'ws://hsrk2216.odns.fr/socket.io/?EIO=4&transport=websocket&sid=4q2GtDnbRm38sSi2AAAI' failed: One or more reserved bits are on: reserved1 = 0, reserved2 = 1, reserved3 = 1

var socket = io("ws://hsrk2216.odns.fr/");

I would like to know where this error could come from and how to correct it

Thanks