Symptom

You removed a website from the Allowed list in the Web Site Exceptions list, but you can still access that page.

Solution

If you remove a site from the Allowed list in the Web Site Exceptions section, the page can still be accessed as long as it is in the browser cache. You will need to delete your browser cache and restart your browser.

Internet Explorer – Follow this article from Microsoft’s site for instructions on how to clear the cache in Internet Explorer.
Mozilla Firefox - Follow this article from Mozilla’s site for instructions on how to clear the cache in Mozilla Firefox.
Google Chrome - Follow this article from Google’s site for instructions on how to clear the cache in Google Chrome.