Our app is a single-page app using react. The user will click a button on "app/pathA", then we transition to "app/pathB" and enter fullscreen on a div element in "app/pathB". This works well on Chrome (win and macOS), however doesn't work on macOS Safari. We're able to fullscreen "app/pathA" but not "app/pathB". Can Webkit team add support for this use case?