According to http://msdn.microsoft.com/en-us/library/ms537660%28v=vs.85%29.aspx and other sources, IE9 shipped with support for calc() unprefixed. We should unprefix our support as well.
Created attachment 640959 [details] [diff] [review]
Passed try, Linux debug.
Comment on attachment 640959 [details] [diff] [review]
(and https://developer-new.mozilla.org/en-US/docs/Firefox_16_for_developers )
As there are three independent implementations, I plan to remove the "experimental" banner once the spec goes to CR, even if the feature is marked 'at risk' in it.
(For the moment the changes are only visible in developer-new, until Kuma goes live)