Created by: valerie-makes
Fixes #23681 (closed)
This prevents padding being added to the body when it's not overflowing but has a margin (e.g. the default 8px) by measuring its outer width (i.e. including the margin).
@Johann-S:
if it's isn't possible to test that with Phantomjs a visual test would be a solution
The problem is that this is breaking other existing PhantomJS tests... but as stated before, it works fine when running those same tests in Chrome.