Dragged element doesn't move in IE9 and older

I am making drag/move specs with Syn. Everything works great with modern browsers but this does not work in IE9 and older: http://jsfiddle.net/7K3PR/
Tried same thing with jQuery and same result: http://jsfiddle.net/L35CN/

I can see the Syn red dot moving, having the correct starting point and trajectory, but the element does not move.

Any pointers on what can change to get this working?

Thank you!

Start by reproducing the behavior in the linked Syn and jQuery jsfiddle examples under IE9 or older Internet Explorer, then compare the moving red dot with the dragged element. The issue is done when the element follows the simulated drag trajectory in those browsers.

Written by the indexing model from the issue text.