Session and match_ip ignore proxy

If you don't want me to provide a PR then that's fine but I'm not going to revert my local changes with no explanation when it's doing what I require.

You're modifying framework files, meaning any upgrades in the future will be much harder for you, or you'll be stuck with the current version forever.
There's easier ways to do what you "require", but at the same time it is not by accident that the library doesn't take proxies into account.

You might get better feedback if you explain why you want this.