About web filter policies
Web filter policies block or allow web content for specific users, for specific content categories, at a specific location and for at specific times. You can specify exceptions and configure a censor policy for content and files posted using web forms.
Whitelist categories contain content that is not subjected to outgoing filtering or dynamic content analysis. You can create a whitelist policy to prevent unintentional blocking of listed websites.
Connect for Chromebooks
Your Smoothwall Filter contains a category named Connect for Chromebooks. This category contains all Google websites necessary for Google user authentication such as single sign-on. These websites must be accessible by all Chromebooks and those serving the SSL / non-SSL login pages with the Google Sign-In button.