Chat app with Node.JS in Fedora Linux (in MobaXTerm). Server.js & Client.js are connected but messaging failed

Question

I want to create a terminal chat application in Node.JS. I use MobaXTerm (WSL-Fedora). The problem is that the server and client can connect to each other, but I can't send a message from one side to the other.

Can somebody help me?

Thanks in advance!

//client.js
const net = require('net');
const client = net.createConnection({ port: 8124 }, () => {
  // 'connect' listener.
  console.log('connected to server!');
  client.write('world!\r\n');
});
client.on('end', () => {
  console.log('disconnected from server');
});

process.stdin.setEncoding('utf8');
process.stdin.on('readable',
function() {
var chunk = process.stdin.read();
if (chunk !== null) {
process.stdout.write(chunk);
}
}
);

//server.js
const net = require('net');
const server = net.createServer((c) => {
  // 'connection' listener.
  console.log('client connected');
  c.on('end', () => {
    console.log('client disconnected');
  });
  c.write('hello\r\n');
  c.pipe(c);
});
server.on('error', (err) => {
  throw err;
});
server.listen(8124, () => {
  console.log('server bound');
});


process.stdin.setEncoding('utf8');
process.stdin.on('readable',
function() {
var chunk = process.stdin.read();
if (chunk !== null) {
process.stdout.write(chunk);
}
}
);