We get a lot of these in our squid log: x.x.x.x - - [14/Jun/2013:11:20:01 +0200] "NONE error:invalid-request HTTP/0.0" 400 4026 NONE:NONE We tracked it to Spotify clients. We don't want to block Spotify but we want to avoid filling the log with these pointless lines. We run a non-transparent Squid 3.1.20 in FreeBSD. I will upgrade to Squid 3.2 this weekend, but I suspect that these lines will still be logged in 3.2. I tried this log_access, but it didn't work: acl spotify_invalid urlpath_regex invalid-request log_access deny spotify_invalid log_access allow all Anyone know how we can exclude these lines from the log? Thanks! Peter Olsson