The new HIG for iPhone X is available here , specify: "Ensure full-screen mode. Make sure that the backgrounds extend to the edges of the display, and vertically scroll layouts, such as tables and collections, continue to the end."
Now I would like to understand how to do this with Xcode 9 GM, since it seems to me that the only view allowed for distribution to the whole screen is the root view of the UIViewController and that whenever I try to drag the constraints for the top view, t .e. WKWebView in the root view, the restrictions are actually related to the safe area, leaving both the top and bottom areas blank, as shown in the storyboard here:
, , , , WKWebView :
