iOS: Setting header to not visible in screen doesn't hide it

[ccdwyer]

Added:
static navigationOptions = { header: { visible: false, }, };

to a component which is called by my main StackNavigator. In Android, the navbar is not visible; In iOS (iPhone and iPad), the navbar is still visible. Is this the intended functionality?

Using react-navigation version 1.0.0-beta.5.

[grabbou]

Duplicate of #53. Change headerMode to screen otherwise to get it work as of now :) PRs welcome, I still have that on my list.