UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.95 Safari/537.36

Steps to reproduce the problem:
Codepen: http://codepen.io/justinmc/pen/XpaKJq

1. Create a div with rounded corners (border-radius), overflow: hidden, and an absolutely positioned div inside of it.
2. Add a transition to the nested div.
3. The nested div will overflow the corners during the duration of the transition.

What is the expected behavior?
All overflow should be hidden, even during a transition

What went wrong?
The nested div is visible outside of the parent div's corners during the transition.

Did this work before? N/A 

Does this work in other browsers? Yes

Chrome version: 55.0.2883.95  Channel: stable
OS Version: OS X 10.12.2
Flash Version: Shockwave Flash 24.0 r0

Don't miss my codepen: http://codepen.io/justinmc/pen/XpaKJq