Index: wp-includes/js/plupload/wp-plupload.dev.js
===================================================================
--- wp-includes/js/plupload/wp-plupload.dev.js	(revision 20762)
+++ wp-includes/js/plupload/wp-plupload.dev.js	(working copy)
@@ -121,10 +121,7 @@
 	};
 
 	Uploader.dragdrop = (function() {
-		// Thank you, Modernizr!
-		// http://modernizr.com/
-		var div = document.createElement('div');
-		return ('draggable' in div) || ('ondragstart' in div && 'ondrop' in div);
+		return ( 'draggable' in document.createElement('span') )
 	}());
 
 	$( function() {