Allowing downloads from certain sites

[Chaitanya Shastri <chait.shastri@xxxxxxxxx>]

Hi list,

   Is it possible to allow downloads from certain trusted sites?  I
tried using the url_regex acl to list certain trusted sites from which
our users can download any file.

   Ex. acl allow_downloads url_regex -i ^http:\/\/example\.com
         http_reply_access allow allow_downloads localnet  # where
localnet is my LAN range

   But its not working. Any ideas on how to get it work?

Thanks.