Hi, I am trying to implement custom authenticator for Squid by having something like auth_param basic program my_authenticator.sh in the /etc/squid3/squid.conf file. It all works fine, but I want to make an improvement. What I want to do is to explain users why they have been denied the service. According to Squid documentation, this is quite possible: > "ERR" responses may optionally be followed by a error description available as %m in the returned error page. So in my authenticator I tried to output ERR You have been browsing too much, come back in 24 hours instead of just ERR but the browser pop up did not have this text. Can anyone explain what does %m stand for or point to any example how to use this? Thanks in advance. Regards, Mindaugas