WebSocket connection to ... Error during WebSocket handshake: Unexpected response code: 400

[theflofly]

Hello,

I have this error in my chrome console :

WebSocket connection to 'wss://forum.watchtopia.ch/socket.io/?EIO=3&transport=websocket&sid=5clSjZaySD1VdQ1cAATY' failed: Error during WebSocket handshake: Unexpected response code: 400

I don't know exactly why ?

[phit]

post your apache/nginx conf