CORS 허용 설정

 const config = require('./config/config')
 
 const app = require('express')();
+const cors = require('cors')
+app.use(cors()) //express 기본 응답에 대한 cors
 const http = require('http').Server(app);
-const io = require('socket.io')(http);
+const io = require('socket.io')(http, {
+  cors:{
+    origin: "*",
+  }
+});
 const papago = require('./openAPIs/papago_api');
 
 const tmi = require('tmi.js');