Settings in config.xml seem to have no effect

These settings seem to do nothing at all on iOS:

<preference name="StatusBarOverlaysWebView" value="false" />
<preference name="StatusBarBackgroundColor" value="#ffffff" />
<preference name="StatusBarStyle" value="default" />

(the status bar still overlays the app window and colors are not changed)

I need to do this to get the intended effect:

StatusBar.overlaysWebView(false);
StatusBar.backgroundColorByHexString("#ffffff");
StatusBar.styleDefault();

This behavior is not obvious to me from reading the documentation.

As there's a workaround with dynamic settings, it's not a showstopper, but the drawback is that the dynamic setting is not done until Cordova is ready, so there's some "jerkiness" to the UX.

Cheers,

Anders