Custom position not working in iOS (8.1)

[jproby]

either using:

position: MoPub.AD_POSITION.POS_XY, x:0, y:400

or

MoPub.showBannerAtXY(x, y);

The same code is working correctly in Android.
Here is a full exemple resulting in a banner at the top in iOS:
MoPub.createBanner({
adId: adid.banner,
adSize: MoPub.AD_SIZE.SMART_BANNER,
autoShow: true,
overlap: true,
position: MoPub.AD_POSITION.POS_XY, x:0, y:window.devicePixelRatio*(window.innerHeight - 98)
});

[rafasegat]

Did you get it?