in packages/react/react-portal/src/router.tsx [6:17]
function Routes(props: BrowserRouterProps) {
const history = useHistory();
const { isFirstEnter, needSync, renderFromParent } = useSyncHistory(history);
if (isFirstEnter && needSync && renderFromParent) return null;
return (
<>
{props.children}
</>
);
}