Droppable: drop triggered for hidden droppables

[paul.uithol]

See ​http://jsfiddle.net/pauluithol/NVE85/.

Drag the grey rectangle to 0,0 and watch the console for the triggered drop event (on a hidden element that's positioned at 200,200). This happens when the parent of a "droppable" element has been hidden.

[tj.vantoll]

I deleted the duplicate #9821, no worries.

This is a bit odd and I can see why you might want to hide the parent of a droppable. I reduced the test case a little: ​http://jsfiddle.net/tj_vantoll/vM67X/.

[vladjq]

I got a similar bug when I had a dropable which was being cropped by it's parent with overflow: hidden, but the event was still being fired: ​http://jsfiddle.net/UzbLS/1/ If you drop the yellow square outside of the red box, you still get an alert fired by the drop event.