echo-example | echo frame example | Learning library

I'm using PHP 7.3.6 on my laptop that runs on Windows 10 Home Single Language 64-bit operating system.

I've installed the latest version of XAMPP installer on my laptop which has installed the Apache/2.4.39 (Win64) and PHP 7.3.6

Today, I come across following code example from the PHP Manual :

I'm trying to adapt the tutorial available here with the authentication config detailed on official Trafik documentation.

I created a simple service that always respond with 200 OK when receive a GET request on this address: http://172.27.10.56:9999/verify

Then, I changed my traefik.toml, and included this:

Every time my WebSocket sends a message to my client, the client calls the onClose-function for the connection and does not receive the message.

Error is 1006 - Websocket Read EOF

I am aware of this answer getting the reason why websockets closed , so error is locally by browser, but I am using Firefox(newest) and html and javascript code is nothing special.

Until server calls session.getRemote().sendString or sendStringByFuture client seems to be connected. When sendString(message) is called, ws.onclose is triggered always!

The Server side:

My Websocket.war runs on a jetty-server with module deploy, http, jsp, client and websocket and in my opinion connection is successful etablished. (See log)

I took the official jetty-websocket example. I deleted Main.java, because I map the websocket-server using import javax.servlet.annotation.WebServlet;