How to debug WebFilter related issues?

How did you filter by source IP in Invalid trafic / Local ACL log entries ?

EDIT: Well strage but I was unable to scroll LogViewer Windows to reveal IP addresses in Chrome. Firefox - works fine... But still this is not a good tool.

But I still thing webfilter log is a little sparse.... BTW: when will be an update ? ;-)

Well not so obvious on a Mac ;-) When you are working with builtin trackpad only - OS X hides scrollbars and in LogViewer you have no indication of content on the right side. You must know it exists and then it will show up when you will scroll - I discovered additional columns when I was using Windows 10 machine.