Google has rolled back an experimental WebContent Occlusion feature that caused major disruption for enterprise users using Chrome in a multi-user terminal server environment. Chrome developer David Bienvenu stated he rolled back the change and disabled the feature. Chrome will detect when a tab is not being used and make its content hidden to reduce resources and cause less battery drain. Enterprise admins are furious that Google has the ability to quietly enable features in their environment without even a heads up and provide no way for admins to block these changes.
Source: https://www.bleepingcomputer.com/news/software/google-fixes-white-screen-problem-in-chrome-admins-furious/