so it doesn't work out of the box with `Bearer` type access tokens. I've tried that on 3 different, stock versions of Apache and `mod_php`. I've noticed that you had a fix involving `apache_request_headers` here: https://github.com/bshaffer/oauth2-server-php/blob/develop/src/OAuth2/Request.php#L148-L157, would that be the way to go?