symfony/symfony-standard — pull request #318 by igorw (2012-04-12 14:53:32+00:00)
Title: [2.0] Prevent access to app_dev.php through proxy

Proxies are sometimes on the same machine as the webserver, so they will gain
access to app_dev.php, as they have a localhost IP.

That makes app_dev.php accessible by default in such setups.

This commit disallows access to app_dev.php if proxy headers are present.