input.formEnctype / formMethod and button.formEnctype / formMethod / type should treat null as "null" String: - https://html.spec.whatwg.org/multipage/forms.html#htmlinputelement - https://html.spec.whatwg.org/multipage/forms.html#htmlbuttonelement In WebKit, we treat null as a null String which ends up removing the corresponding attribute. This does not match the specification. Firefox and Chrome match the specification here.
Created attachment 283960 [details] Patch
Comment on attachment 283960 [details] Patch Attachment 283960 [details] did not pass ios-sim-ews (ios-simulator-wk2): Output: http://webkit-queues.webkit.org/results/1704018 New failing tests: imported/w3c/web-platform-tests/html/dom/reflection-forms.html
Created attachment 283966 [details] Archive of layout-test-results from ews121 for ios-simulator-wk2 The attached test failures were seen while running run-webkit-tests on the ios-sim-ews. Bot: ews121 Port: ios-simulator-wk2 Platform: Mac OS X 10.11.5
Created attachment 283968 [details] Patch
Created attachment 283974 [details] Patch
Comment on attachment 283974 [details] Patch Clearing flags on attachment: 283974 Committed r203394: <http://trac.webkit.org/changeset/203394>
All reviewed patches have been landed. Closing bug.