Inspired by:
- https://www.youtube.com/watch?v=tsz-assb1X8 Netty 15 min.
- https://www.youtube.com/watch?v=lW1vsKMUaKg NodeJs 5 min.
- https://github.com/matthiasn/sse-chat/ - SSE Chat Application
Also nice:
- http://www.websocket.org/echo.html WebSockets Try-out
- http://oboejs.com/api Partial JSON loading