Created attachment 64454 [details] reduced test case This is causing some layout test failures with --html5-treebuilder turned on. I've attached a reduction.
The problem is that Document::adoptNode is calling setRemainsAliveOnRemovalFromTree and confusing the frame. I think we're supposed to construct the fragment completely detached but somehow it's getting attached?
Fragments shouldn't get attached at all. I suspect we have a bug in HTMLConstructionSite.
Created attachment 64465 [details] Patch
Comment on attachment 64465 [details] Patch r=me The test output doesn't really make it obvious that it's a pass. Did you intent to keep the numbered alerts in?
Created attachment 64473 [details] Patch for landing
Comment on attachment 64473 [details] Patch for landing Clearing flags on attachment: 64473 Committed r65396: <http://trac.webkit.org/changeset/65396>
All reviewed patches have been landed. Closing bug.
Comment on attachment 64473 [details] Patch for landing Thanks. I agree the test output is a bit confusing. :) But I've very glad for the bug fix!