Firefox draggable bug

[mably]

Hi,

We have detected a buggy behavior of draggable.js on our website with Firefox. After digging a bit, we found that it might be related to the "overflow-y: scroll" css property we use on the HTML element to permanently show the vertical scrollbar.

Is it a jqueryui bug or a firefox bug ?

I've put online a modified copy of the draggable sample page to show the buggy behavior :

​http://www.mably.com/dev/draggable.html

Just reduce the size of your Firefox browser window to activate the vertical scrollbar, scroll down a bit and start dragging.

You'll see the draggable objet jump up the page the same amount you've scrolled the page down.

For the moment we have temporarily disabled the overflow-y:scroll css property.

Any help would be greatly appreciated.

François Masurel Bordeaux, FRANCE

[Scott González]

jQuery doesn't support offset calculations when the html or body elements are modified in a way that changes the offset of the document element.

[Scott González]

Milestone TBD deleted