Option for enabling Flexbox 2009

Created by: oltodo

I'm working on a HbbTV app writing in React and built with Create React App. Many of terminals HbbTV compliant are not totally up to date with the last specifications. I currently use a Samsung TV that I recently bought and I can observe that display: flex property is not interpreted instead of display: -webkit-flex. I could solve this problem by adding this line on styles myself (or by downgrading to 0.9.5) but maybe it could be possible to simply enable Flexbox 2009 by adding an option.

What is your opinion?