Error raised by hovering over a SVG element

[asudoh]

The error is: TypeError: Object #<SVGElementInstance> has no method ‘compareDocumentPosition’
Raised in: dpointer/handler/utils.dispatchEnterEvents() and dpointer/handler/utils.dispatchLeaveEvents().

I don’t have a reduced test case, but it can be reproduced by uncommenting ProgressIndicator in liaison/samples/widgetskitchensink.html and hovering over it.