I limit the maximum file size an employee can download to our network using reply_body_max_size 100 MB proxy_user1. If this limit is hit, Squid returns a 403. My problem is that I would like to differentiate between the status code 403 that comes from a target website that does not allow access at all to download a specific file and to the intentional 403 that is generated from Squid because the file size exceeds the limit we set. The reason is that I want to display the user a message like "The target website does not allow access" and "You have requested a file to download that is too large. Please contact the IT department". I was thinking that the 413 is useful for that. Is there a way to change the status code/message when a user hits the reply_body_max_size and differentiate that case? Is there any other workaround? Thanks a lot for your help.
