If we have very simple page with a little content on it (like /tests/basic/gallery/html/dialog-box.html) there is a gap between the bottom of the page and the bottom of the browser.
In previous theme versions this could be seen as #2 "White space beneath the appbar on blank page".
This seems to be because of incorrect page zooming. Du e to this we also have incorrect position for the fixed toolbar so we have to add some additional margin to have it positioned correctly.
Some additional info/experiments
To test on WP device or simulator - there is a red color body gap
The gap is not part of the body. This is something special.
page min-height fix as per additional research for #9 Investigate/fix…
… incorrect zooming issue