Animating <polygon> along a path - weird behavior

Hello guys,

So I was trying to animate a <polygon> along a path using <animateMotion>
and got some unpredictable behavior.

Here is a live example: http://jsfiddle.net/SaraSoueidan/qL0hz6kr/6/

The red cross is a <polygon> that I'm trying to animate along path#route.

You can see how it behaves in the live demo.

I then tried to wrap the polygon in a group <g> and animate the group
instead; got the same result.

Upon asking Dirk Schulze about this issue, he requested that I send an
email to your mailing list. Hope this helps debug this behavior somehow.

Thank you!

-- 
Best,
Sara

http://sarasoueidan.com
@SaraSoueidan <http://twitter.com/SaraSoueidan>