drag&drop from itunes to safari on mac fails

drag drop from itunes to safari isn't working, reproducible on demo page (http://blueimp.github.com/jQuery-File-Upload/) using safari 6.0.3 (8536.28.10) and itunes 11.0.2(25) and seems to affect several other safari versions too.. it's working in this drag drop demo though: http://www.html5rocks.com/en/tutorials/file/dndfiles/#toc-selecting-files-dnd

i tried to trace the problem, looks like dataTransfer.items on drop event always undefined and dataTransfer.files at some point become empty array..