Which mechanism triggered the most recent navigation. Consumers (Outlet's
scroll behavior, DevTools) use this to distinguish user actions from
browser back/forward so they don't fight the browser's native scroll
restoration.
null on initial construction — no navigation has happened yet.
Which mechanism triggered the most recent navigation. Consumers (Outlet's scroll behavior, DevTools) use this to distinguish user actions from browser back/forward so they don't fight the browser's native scroll restoration.
nullon initial construction — no navigation has happened yet.