Web socket issues nodejs standalone app

[link2anjan]

I have a standalone nodeJs app which server html files and js files. Locally everything working fine but not working in render free plan.

here is the sample code:

/**
 * Create HTTPS server.
 */ 
 
var options = {
  key: fs.readFileSync(__dirname+'/private.key'),
  cert: fs.readFileSync(__dirname+'/certificate.pem')
};
var secureServer = https.createServer(options,app);
/**
 * Listen on provided port, on all network interfaces.
 */
secureServer.listen(app.get('secPort'), () => {
   console.log('Server listening on port ',app.get('secPort'));
});
secureServer.on('error', onError);
secureServer.on('listening', onListening);


/**
 * ################# Socket IO implementation ########################
 */
var io = require('socket.io')(secureServer);

app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use('/assets',express.static(__dirname + '/assets'));
app.use("/",router)

<script src="https://webrtc.github.io/adapter/adapter-latest.js"></script>
    <script src="/assets/js/webRtc/webRtc.js"></script>
    <script src="/socket.io/socket.io.js"></script>
    <script src="/assets/js/chat.js"></script>
    <script src="/assets/js/chat-query.js"></script>

const socket = io();

socket.emit("myuser",myUserName);

socket.on('newUserConnected', ( users ) => {
  outputUsers(users);
  selectOnelineButton();
});

Locally everything works fine for below api calls:

the base address of server: https://localhost:7443

Request URL:
https://localhost:7443/socket.io/socket.io.js

Request Method:
GET

Status Code:
200 OK

Request URL:
https://localhost:7443/socket.io/?EIO=3&transport=polling&t=P4G7iEz

Request Method:
GET

Status Code:
200 OK

But only these apis not working in render platform:

Request URL:
https://imeet-don4.onrender.com/socket.io/socket.io.js

Request Method:
GET

Status Code:
404 Not Found

currently application running here: https://imeet-don4.onrender.com/
Please check.

[Keith]

Hi there,

On Render, SSL is terminated in our proxy and requests are forwarded over plain HTTP using our private network to your service. You don’t create HTTPS servers for Render service, just a HTTP one.

Regards,

Keith
Render Support, UTC+10