chrome throw err: Cannot call method 'setData' of undefined,
I find the e is not equal to window.event(it havn't propert dataTransfer);both has very big different

I find both almost equal in the click event.

I used <http://code.jquery.com/jquery-latest.js>.

I don't use drag feature,I just want know why.
it is new feature in html 5,jquery still behind of it ?.
or jquery team don't want support it?? or some other reason