Fyrd/caniuse — pull request #529 by tancrede (2014-05-05 09:47:21+00:00)
Title: Update calc.json

Blink is now ok for mixing vh and calc (https://code.google.com/p/chromium/issues/detail?id=168840)
Webkit still can't (https://bugs.webkit.org/show_bug.cgi?id=94158)