Strange results on re-orientation

[bknill]

In Chrome on Android 4.4.2 when you rotate the phone from portrait to landscape, after the browser has resized the scene is tilted on a 45degree angle.

In Chrome on iOS 8 after the re-orientation from portrait to landscape, the x and y seem to have swapped (or not updated) and the view is titled to the original angle from portrait.

This might not be a great explanation.. but is there any tips for handling re-orientation?