@vmassol I did not follow the guide. It might well work – I did not try it. In general, I prefer using AJP whenever using the combination of Apache HTTPd and Apache Tomcat, because with AJP one does not have to worry about stuff like the “X-Forward” headers. Tomcat’s AJP connector automatically gets the correct information about the original request, and to the web application, it looks just like the request was directly made to Tomcat – Apache HTTPd acting as a reverse proxy is completely transparent.
The only downside is that AJP does not support WebSocket requests as even the newest version of the protocol (1.3) is about 20 years old. That is why the approach of using the HTTP connector for WebSocket requests, that I outlined earlier, is needed.