Fix "Uncaught TypeError: Cannot set property 'display' of undefined" error in Chrome caused by iteration via for in loop.
Fix "Uncaught TypeError: Cannot set property 'display' of undefined" error in Chrome caused by iteration via for in loop.

FineUploader/fine-uploader,SimonWaldherr/uploader,FineUploader/fine-uploader,SimonWaldherr/uploader,FineUploader/fine-uploader,SimonWaldherr/uploader,SimonWaldherr/uploader,SimonWaldherr/uploader,SimonWaldherr/uploader,SimonWaldherr/uploader