Vue.js version

2.0.0-beta.6

Reproduction Link

Vue 1.0: https://jsfiddle.net/crswll/dxuoayey/
Vue 2.0 (broken): https://jsfiddle.net/b5kvqpqn/
Vue 2.0 (working): https://jsfiddle.net/crswll/dxuoayey/2/

What is Expected?

Passing a string directly into a binded style should render properly, as in 1.0

What is actually happening?

The style doesn't exist in the DOM when running under 2.0.

There's no documented changes for this that I could see, so I'm assuming this is a bug. Thanks to @crswll for the V1/2 jsfiddles and finding the solution