OpenShift: Cannot Connect to WebSocket with Alias (bug) - websocket

Question

I have a Java Spring Web application which uses WebSockets. An HTML file connects to the WebSocket using the uri:
var wsUri = "wss://" + document.location.hostname + ":8443" + "/serverendpoint";
Here is my serverendpoint.java code that creates the WebSocket:
package com.myapp.spring.web.controller;
import java.io.IOException;
import javax.websocket.OnClose;
import javax.websocket.OnError;
import javax.websocket.OnMessage;
import javax.websocket.OnOpen;
import javax.websocket.Session;
import javax.websocket.server.ServerEndpoint;
import org.springframework.web.socket.server.standard.SpringConfigurator;
#ServerEndpoint(value="/serverendpoint", configurator = SpringConfigurator.class)
public class serverendpoint {
#OnOpen
public void handleOpen () {
System.out.println("JAVA: Client is now connected...");
}
#OnMessage
public String handleMessage (Session session, String message) throws IOException {
if (message.equals("ping")) {
// return "pong"
session.getBasicRemote().sendText("pong");
}
else if (message.equals("close")) {
handleClose();
return null;
}
System.out.println("JAVA: Received from client: "+ message);
MyClass mc = new MyClass(message);
String res = mc.action();
session.getBasicRemote().sendText(res);
return res;
}
#OnClose
public void handleClose() {
System.out.println("JAVA: Client is now disconnected...");
}
#OnError
public void handleError (Throwable t) {
t.printStackTrace();
}
}
When I connect to the websocket using the http://myapp-myproject.rhcloud.com/mt URL, the WebSocket connects. However, when I set up an alias to the http://myapp-myproject.rhcloud.com, which is called https://someurl.com/mt, the websocket doesn't connect. Why is this? I get the following error message in Google Chrome:
Furthermore, the websocket uses a wss connection at port 8443. This is a secure request equivalent to https. Therefore, how can it work with the http://myapp-myproject.rhcloud.com/mt URL which is an http URL, and why is it not connecting with the alias?
Thank you so much for your help!