Block sleeping tabs on specific sites

Define a list of sites, based on URL patterns, that aren't allowed to be put to sleep by sleeping tabs. Sites in this list are also excluded from other performance optimizations like efficiency mode and tab discard. If the policy 'SleepingTabsEnabled' (Configure sleeping tabs) is disabled, this list isn't used and no sites are put to sleep automatically. If you don't configure this policy, all sites are eligible to be put to sleep unless the user's personal configuration blocks them. Example value: https://www.contoso.com [*.]contoso.edu