I've been using the gp under User Config > Windows Settings > Internet Explorer Maintenance > Connection > Proxy Settings in the User policy Package for a while now to prevent students from getting to https sites.

There are some sites though that we had to the Exception list which has worked fine until I added a new one which is: https://secure.ontariocolleges.ca/sso/auth

When this one is added it seems the gp doesn't work at all, ie students can go to any https site they want, when I remove this exception they're blocked again.

Someone else told me there was a character limit to the exception list so I tried removing all other exceptions except the one above and it still doesn't work.

I am unable to find any other info on this. Does anyone have any ideas?