Using app in landscape on iphone and open the camera using a plugin (cordova-plugin-camera). The camera opens in portrait mode. Dialogs to request permissions are therefore rotated, as is button text.
Replicated with HelloCordova app with addition of cordova-plugin-camera.
Using cordova-plugin-screen-orientation, we can see that an event to change the orientation to portrait-primary is fired when the camera is opened.
Does not affect ipads.