Grafana with http only - problem?

Hi there, I have spent hours and hours to get Grafana running in a subpath as reverse-proxy in an apache server, but did not succeed - the NGINX examples only did not help me.

So instead, I think about running it just on http only, without SSL/TLS, because the information is not secret and I am not going to login as admin from remote. So do you think I could get other problems?

Or - does somebody have a functioning sample config for apache with ssl and reverse proxy of Grafana in a subpath?