DataTransfer.setDragImage takes a non nullable Element parameter [1]. [1] https://html.spec.whatwg.org/multipage/dnd.html#dom-datatransfer-setdragimage
Created attachment 410440 [details] Patch
Test?
Created attachment 410459 [details] Patch
(In reply to Alex Christensen from comment #2) > Test? Fair enough, added.
Created attachment 410465 [details] Patch
Created attachment 410477 [details] Patch
Committed r267956: <https://trac.webkit.org/changeset/267956> All reviewed patches have been landed. Closing bug and clearing flags on attachment 410477 [details].
<rdar://problem/69942942>