Bugzilla – Bug 19737
Interaction of vw/vh and scrollbars is undefined
Last modified: 2012-10-27 12:04:34 UTC
What happens to vw/vh when the viewport does/doesn't have scrollbars?
Note that since these are resolved at computed time, but the presence of scrollbars isn't determined until layout time, this is a hard problem.
(Obvious solution - force everyone to switch to overlay scrollbars. ^_^)