With the recent change for servo to automatically pick up the http_proxy environment variable, we currently error on the side of forwarding everything through the proxy.
However, this means that localhost and similar names might not go to the correct place.

Ideally, we need to split the traffic depending if it matches the proxy or no proxy. hyper_util has handling for the matching https://docs.rs/hyper-util/latest/hyper_util/client/proxy/matcher/index.html.