resizable with position: fixed

resizable with position: fixed

I'm trying to use resizable on a fixed-position element. When resizing, the element jumps across the screen.

Here are the specific details:
  1. The element is resizable horizontally, and the position is specified by setting the 'right' css attribute.
  2. When the element is resized, the 'left' css attribute gets set to 0 and the element jumps across the screen.
  3. This occurs in both IE 11 and Chrome 37, but DOES NOT occur in Firefox 32.
  4. A similar problem occurs when the element is resizable vertically, and the position is specified by setting the 'bottom' css attribute.

Here is a minimal example:

http://jsfiddle.net/ukku7feh/

I know that there was a bug previously with resizable on a fixed element, but that seemed to involve the position attribute getting changed from 'fixed' to 'absolute', which doesn't happen here.

Can anyone confirm whether this is a new bug, please?