How to set up on App Platform

I have a Node Js app with a React Frontend deployed as an App. Unfortunately Im having a hard time making work outside of localhost… Im using ${APP_URL}/node as a route for backend and it is running on port 80.

const app = express();
const server = http.createServer(app); 
export const io = new Server(server, {
  cors: {
    origin: allowedOrigins,
    methods: ['GET', 'POST'],
// Listen for when the client connects via
io.on('connection', socket);
const connectServer = async () => {
  app.set("view engine", "ejs");
  app.use( express.urlencoded({limit: '50mb', extended: true }));
  app.use((req, res, next) => {
    if (req.originalUrl === '/stripeHook') {
    } else {
      express.json({ limit: '50mb' })(req, res, next);

  const PORT = process.env.PORT || 80;
  server.listen(PORT, () =>  console.log(`Server is running on port ${PORT}.`));

And on client side Im using a hook

  const BASE_URL = process.env.REACT_APP_SOCKET_URL;
  socket = io(BASE_URL);
  if(userId)socket.emit("live", userId)

Im getting POLLING 200 response in my network tab but the response is ‘You need to enable javascript’.

Can someone help me out! Appreciate any help

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