[💡 FEATURE REQUEST]: Add support for X_FOREARDED headers in access log

[speller]

Plugin

None

I have an idea!

When RR is behind a load balancer, it logs the load balancer's IP address in the access log, which is useless. It would be nice if RR will be able to log the real client IP address from the X_FORWARDED_FOR header, as well as other info from other standard X_FORWARDED_XXX headers.