Web filters...to scream or not to scream?

After trying for several days to fix some formatting errors in our department blog on Wordpress (including contacting their tech support-which offered no help at all), we finally narrowed down the problem to our web filter, which I am usually very happy with. However, in this instance, any template I use is being blocked which in turn creates havoc with the formatting when someone from the district uses their student or teacher login to Active Directory. Kevin and I tried diligently to figure out what URL was causing the problem, but had no luck. Then I checked my son's blog through the student login and it worked! No formatting issues. I guess Google really is a powerhouse!