Traffic to blocked sites that use HTTPS should show "Blocked" page and not "Privacy error"
When you visit http://www.echeat.com and have it set to be blocked, you get the Blocked by GoGuardian page. When you visit the same address with HTTPS you get a "Privacy Error" (Chrome) or similar, depending on the browser. Access to the page is being blocked which is great. But the expected behavior is to get the Blocked page regardless of protocol.
Most sites are auto redirecting from http to https versions of their sites. Our staff is going to be confused when they see a privacy warnings and not a Blcoked notification.
Privacy error makes it appear that something wrong with the site or how it is being accessed rather than the the site was blocked by GoGuardian.