:preserve_host should default to true
:preserve_host should default to true

TLmaK0/rack-reverse-proxy,jaswope/rack-reverse-proxy,monkseal/rack-reverse-proxy,hubertlepicki/rack-reverse-proxy,sportngin/rack-reverse-proxy,htle2101/rack-reverse-proxy,pigoz/rack-reverse-proxy,waterlink/rack-reverse-proxy,nazarhussain/rack-reverse-proxy,waterlink/rack-reverse-proxy-fork,rentalutions/rack-reverse-proxy