STWebpageController
The controller you use to report web usage and block restricted webpages.
Declaration
class STWebpageControllerOverview
This class provides a convenient way for you to communicate changes in each webpage, such as when the user starts or stops playing media. When a parent or guardian of the user blocks the webpage’s current URL, the webpage controller:
Automatically occludes the web page’s content
Updates a KVO-compliant urlIsBlocked property
For example, you can observe urlIsBlocked and take action when it changes to YES, such as pausing media.