UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.102 Safari/537.36

Example URL:
http://dabblet.com/gist/fd85cd7069d0ad5ed842bee574c40f79

Steps to reproduce the problem:
Visit testcase.

What is the expected behavior?
All three paragraphs should have the same font (Courier)

What went wrong?
Font applied via shorthand does not work. 

Does it occur on multiple sites: N/A

Is it a problem with a plugin? No 

Did this work before? No 

Does this work in other browsers? Yes 

Chrome version: 50.0.2661.102  Channel: n/a
OS Version: OS X 10.11.5
Flash Version: Shockwave Flash 21.0 r0

The declaration is not dropped, instead var() seems to be treated as an unknown font name. Reproducible also on Chrome Win. Also tested on WebKit and Gecko, testcase passes in both.