Does anyone transition Flexbox order yet?

dabblet.css

/* Does anyone transition Flexbox order yet?
   http://dev.w3.org/csswg/css-flexbox/#order-property */

/* ✘ Chrome 28
   ✘ Safari 6.0.3
   ✘ Firefox 20
   ✓ Aurora 22
   ? IE 10
*/

.wrapper {
  display: flex;
  border: 2px solid #def;
  transition: all 0.5s ease-out;
}
.box {
  transition: all 0.5s ease-out;
  width: 33%;
  min-height: 4em;
  padding: 0.75em 0;
  text-align: center;
  border: 2px solid #444;
  background-color: #eee
}
.a {
  order: 1;
  background-color: #ddd;
}
.wrapper:hover .a {
  order: 2;
}
.b {
  order: 2;
  background-color: #eee;
}
.wrapper:hover .b {
  order: 3;
}
.c {
  order: 3;
  background-color: #fff;
}
.wrapper:hover .c {
  order: 1;
}

dabblet.html

<div class="wrapper">
  <div class="box a">a</div>
  <div class="box b">b</div>
  <div class="box c">c</div>
</div>

dabblet.js

// alert('Hello world!');

settings.json

{"view":"split","fontsize":"90","seethrough":"","prefixfree":"1","page":"css"}