jQuery has dataTransfer in event.originalEvent

[srguiwiz]

At http://api.jquery.com/category/events/event-object/ it reads

Certain events may have properties specific to them. Those can be accessed as properties of the event.originalEvent object.

Using this would be an improvement to this directive.

[srguiwiz]

One result is correct interoperability with other elements which accept a drag type.

E.g. text/plain per https://developer.mozilla.org/en-US/docs/Web/Guide/HTML/Recommended_Drag_Types .