Resolves the active sandboxPath against its mounted <Route> children, first-match-wins in render order, and renders the winner (or fallback). The match scopes a nested context so useRouteParams() / useRoute() inside the rendered route see this match. Use instead of (or nested within) a boot-time routingSpec.

  • Parameters

    • __namedParameters: { children?: ReactNode; fallback?: ReactNode }

    Returns Element