Client network socket disconnected before secure TLS connection was established #20

I don't understand, I get a error like this : Error: Client network socket disconnected before secure TLS connection was established. What does that mean ? My code is like this :

var proxy = require('socket.io-proxy');
proxy.init('http://192.168.1.1:8080');
var socket = proxy.connect('https://website.com');

Does it come from socket.io-proxy ?