Cannot see frosted screen

[rohinton-collins]

Should this work on iOS? I am not seeing a frosted screen:

  Widget build(BuildContext context) {
    final routeObserver = ref.read(routeObserverProvider);

    return MaterialApp(
      navigatorKey: rootNavigatorKey,
      navigatorObservers: [routeObserver],
      home: const SecureApplication(
        child: SecureGate(
          child: InitialRoute(),
        ),
      ),
    );
  }
}