Background color less high then the device screen when little content on one page

Background color less high then the device screen when little content on one page

Having upgraded to Alpha 3, the grey background that used to cover the entire screen (also when there was only 1 word in the entire page) now only covers the top part.

Of course, when there's a more content than fits the screen this problem does not exist.


I see this on iPad and Chrome, not under Android (lower resolution)

Am I missing something or is this a new, obvious bug gone unnoticed?