'compatMode' property should be on Document, not HTMLDocument: - https://dom.spec.whatwg.org/#dom-document-compatmode WebKit had it on both. Firefox and Chrome have it on Document only.
Created attachment 285944 [details] Patch
Comment on attachment 285944 [details] Patch Rejecting attachment 285944 [details] from commit-queue. Failed to run "['/Volumes/Data/EWS/WebKit/Tools/Scripts/webkit-patch', '--status-host=webkit-queues.webkit.org', '--bot-id=webkit-cq-03', 'land-attachment', '--force-clean', '--non-interactive', '--parent-command=commit-queue', 285944, '--port=mac']" exit_code: 2 cwd: /Volumes/Data/EWS/WebKit Last 500 characters of output: -> origin/master Partial-rebuilding .git/svn/refs/remotes/origin/master/.rev_map.268f45cc-cd09-0410-ab3c-d52691b4dbfc ... Currently at 204448 = a3f112c9a0a29bfd4ead244ab8b6b187144ca5da r204449 = c3567caf1cf730e94ab48be897a55d8cf2dc611e r204450 = 8104afab50641d0d30bb419f1d267e318caf205d Done rebuilding .git/svn/refs/remotes/origin/master/.rev_map.268f45cc-cd09-0410-ab3c-d52691b4dbfc First, rewinding head to replay your work on top of it... Fast-forwarded master to refs/remotes/origin/master. Full output: http://webkit-queues.webkit.org/results/1866281
Created attachment 286009 [details] Patch
Comment on attachment 286009 [details] Patch Clearing flags on attachment: 286009 Committed r204451: <http://trac.webkit.org/changeset/204451>
All reviewed patches have been landed. Closing bug.