Minor Description
Support for making Livy work behind reverse proxy (e.g.: Kong). The problem is that Livy webui is working on "/" path. The idea is to make it work on for example "/my-livy/" path.
It is not working by default because html/css/js is generating urls using "/". Code is executed in user browser which then make redirection/requests to non-existing sources.
Proposed solution is to add parameter in livy.conf to setup base path on livy startup.