Unable to run WebSocket and HTTP Server on same port
I've the following code:

```php
use Ratchet\Http\HttpServer;
use Ratchet\WebSocket\WsServer;

$loop = \React\EventLoop\Factory::create();

$socketServer = new \React\Socket\Server('127.0.0.1:8080', $loop);

$httpServer = new \React\Http\Server(function(\Psr\Http\Message\ServerRequestInterface $request) {
  return new \React\Http\Response(200, [
      'Content-Type' => 'text/plain'
    ],
    'Hello, World'
  );
});

$httpServer->listen($socketServer);

$rrServer = new RRServer(); // Implements MessageComponentInterface

$webSocketServer = new IoServer(
  new HttpServer(
    new WsServer(
      $rrServer
    )
  ),
  $socketServer,
  $loop
);

$webSocketServer->run();
```
The code works, but I'm only able to access it using http://localhost:8080, and when I try to connect using WebSocket, the connection is opened, and then it immediately closes. Also, When I create a new socket with different port then I'm able to access both using http:// and ws://

Is it possible to run HTTP Server and WebSockets on the same port, and if yes, how to implement it?

Thanks.