DOMTokenList.value should be a stringifier attribute: - https://dom.spec.whatwg.org/#domtokenlist
Created attachment 286975 [details] Patch
Comment on attachment 286975 [details] Patch Clearing flags on attachment: 286975 Committed r204970: <http://trac.webkit.org/changeset/204970>
All reviewed patches have been landed. Closing bug.