Hi @Shin_Jecheol and welcome,
I think with the latest version of socket.io you need to boot the connection like this:
var socket = io.connect('server_url');
Check this forum post for a working version:
Hi @Shin_Jecheol and welcome,
I think with the latest version of socket.io you need to boot the connection like this:
var socket = io.connect('server_url');
Check this forum post for a working version: