87611 2012-05-27 19:29:03 -0700 [FileAPI] FileList.item should return null when the index is negative. 2012-05-29 20:31:34 -0700 1 1 1 Unclassified WebKit WebCore Misc. 528+ (Nightly build) All All RESOLVED DUPLICATE 77899 P2 Normal --- 0 li.yin webkit-unassigned abarth ap haraken jianli oldest_to_newest 634849 0 li.yin 2012-05-27 19:29:03 -0700 From Spec: http://www.w3.org/TR/FileAPI/#dfn-item If there is no indexth File object in the FileList, then this method must return null. Currently, if index is largger than length, webkit returns null, it makes sense. But it throws expection "INDEX_SIZE_ERR" when the index is negative. Maybe it isn't friendly. And both of Firefox and IE will return null, if index is negative or largger that length. Although the spec have no obvious language to support negative index, I think if we support largger index, then we should support negative index as well. 636778 1 li.yin 2012-05-29 20:31:34 -0700 *** This bug has been marked as a duplicate of bug 77899 ***