99247 2012-10-13 01:53:43 -0700 Document::adoptNode shouldn't special-case <iframe> 2012-10-16 14:17:44 -0700 1 1 1 Unclassified WebKit New Bugs 528+ (Nightly build) Unspecified Unspecified RESOLVED FIXED P2 Normal --- 1 abarth abarth dglazkov eric ojan rniwa webkit.review.bot oldest_to_newest 741456 0 abarth 2012-10-13 01:53:43 -0700 Document::adoptNode shouldn't special-case <iframe> 741457 1 168550 abarth 2012-10-13 01:58:28 -0700 Created attachment 168550 Patch 741463 2 168550 buildbot 2012-10-13 04:22:04 -0700 Comment on attachment 168550 Patch Attachment 168550 did not pass mac-ews (mac): Output: http://queues.webkit.org/results/14286187 New failing tests: fast/frames/adopt-iframe-into-itself.html 741465 3 168550 webkit.review.bot 2012-10-13 05:47:53 -0700 Comment on attachment 168550 Patch Attachment 168550 did not pass chromium-ews (chromium-xvfb): Output: http://queues.webkit.org/results/14297210 New failing tests: fast/frames/adopt-iframe-into-itself.html 741486 4 168550 ojan 2012-10-13 09:56:02 -0700 Comment on attachment 168550 Patch It's not clear from the test or the code, what do we actually do in this case now? The adoptNode silently fails? 741490 5 168550 rniwa 2012-10-13 10:07:48 -0700 Comment on attachment 168550 Patch Please fix the test before landing it. 741493 6 abarth 2012-10-13 10:26:38 -0700 > It's not clear from the test or the code, what do we actually do in this case now? The adoptNode silently fails? It succeeds in detaching the iframe from the DOM, but that process tears down the document inside the frame, so nothing very interesting happens. 741522 7 ojan 2012-10-13 13:28:14 -0700 So, we set the m_document of the ancestor iframe to the document in one of its descendant frames. We don't actually teardown the inner document until we destroy the iframe. At a theoretical level, the old code looks correct to me. It seems non-sensical to set a frame's document to one of it's descendant frames' document. For example, now you can appendChild an iframe to one of it's descendant frames. At a practical level, I can't imagine there are sites that depend on this behavior. I would guess that other browsers throw an exception in this case though. FWIW, I tested Firefox and they throw a TypeError in this case. I agree that this code shouldn't special case iframe, but maybe it should be for frames in general (i.e. anything we put in the frame tree). That seems more correct to me. I don't feel strongly about this, so go ahead if you want to with rniwa's R+. This just seems like a step in the (slightly) wrong direction to me. FWIW, I think allowing the adoptNode to succeed may expose a possible, albeit very unlikely, memory leak if you were to append the iframe to the newly adopted document. The new document is now being guardRef'ed by the iframe, and the iframe is being kept alive by virtue of having a parentNode. 743493 8 169012 abarth 2012-10-16 13:39:28 -0700 Created attachment 169012 Patch 743550 9 169012 webkit.review.bot 2012-10-16 14:17:40 -0700 Comment on attachment 169012 Patch Clearing flags on attachment: 169012 Committed r131500: <http://trac.webkit.org/changeset/131500> 743551 10 webkit.review.bot 2012-10-16 14:17:44 -0700 All reviewed patches have been landed. Closing bug. 168550 2012-10-13 01:58:28 -0700 2012-10-16 13:39:26 -0700 Patch bug-99247-20121013015722.patch text/plain 4878 abarth U3VidmVyc2lvbiBSZXZpc2lvbjogMTMxMjU0CmRpZmYgLS1naXQgYS9Tb3VyY2UvV2ViQ29yZS9D aGFuZ2VMb2cgYi9Tb3VyY2UvV2ViQ29yZS9DaGFuZ2VMb2cKaW5kZXggYzQwMjc0MTZkOGM4ZTQ1 NjU0ODkyOTdhNjA3NzgyZjNkZmI4M2YzZS4uZDBkZjUzYTYwZjA3NzRmYjcxZjAxNzYxMjllZmJl ZjJiNmMwNmZiNCAxMDA2NDQKLS0tIGEvU291cmNlL1dlYkNvcmUvQ2hhbmdlTG9nCisrKyBiL1Nv dXJjZS9XZWJDb3JlL0NoYW5nZUxvZwpAQCAtMSwzICsxLDE4IEBACisyMDEyLTEwLTEzICBBZGFt IEJhcnRoICA8YWJhcnRoQHdlYmtpdC5vcmc+CisKKyAgICAgICAgRG9jdW1lbnQ6OmFkb3B0Tm9k ZSBzaG91bGRuJ3Qgc3BlY2lhbC1jYXNlIDxpZnJhbWU+CisgICAgICAgIGh0dHBzOi8vYnVncy53 ZWJraXQub3JnL3Nob3dfYnVnLmNnaT9pZD05OTI0NworCisgICAgICAgIFJldmlld2VkIGJ5IE5P Qk9EWSAoT09QUyEpLgorCisgICAgICAgIFRoZSBzcGVjaWFsIGNhc2Ugd2FzIGFkZGVkIGluIGh0 dHA6Ly90cmFjLndlYmtpdC5vcmcvY2hhbmdlc2V0Lzc1MjkzIHRvCisgICAgICAgIGZpeCBhIGJ1 ZyB3aXRoIG1hZ2ljIGlmcmFtZXMuIE5vdyB0aGF0IHdlIGRvbid0IHN1cHBvcnQgbWFnaWMgaWZy 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