document.createEvent("eventname") should do a case-insensitive match on the event name: https://dom.spec.whatwg.org/#dom-document-createevent WebKit does a case-sensitive match. Firefox and Chrome match the specification.
rdar://problem/22558709
Created attachment 260495 [details] Patch
Comment on attachment 260495 [details] Patch Clearing flags on attachment: 260495 Committed r189282: <http://trac.webkit.org/changeset/189282>
All reviewed patches have been landed. Closing bug.