32393 2009-12-10 13:34:42 -0800 Comments and PIs in the internal subset appear as siblings of the doctype 2023-12-30 06:00:13 -0800 1 1 1 Unclassified WebKit XML 528+ (Nightly build) All All NEW InRadar, WPTImpact P3 Normal --- 1 zcorpan webkit-unassigned ahmad.saleem792 ap bfulgham cdumez mike rniwa webkit-bug-importer oldest_to_newest 170507 0 zcorpan 2009-12-10 13:34:42 -0800 Comments and PIs that appear in the internal subset are inserted to the DOM as children of the document, after the doctype node. This is bogus. In the Infoset, they'd be children of the doctype. In the DOM, they'd be dropped on the floor, basically. This makes a difference for xml-stylesheet PIs. Opera and Mozilla don't insert comments and PIs in the internal subset as children of the document. http://canvex.lazyilluminati.com/misc/dom-viewer/x.html?<!DOCTYPE%20x[<%3Fpi%3F>]><x/> 170623 1 ap 2009-12-10 19:50:14 -0800 What is the use case for putting xml-stylesheet PI into the internal subset? 170658 2 zcorpan 2009-12-11 01:57:46 -0800 No use case; that's why WebKit shouldn't allow it. 1502962 3 lforschler 2019-02-06 09:03:24 -0800 Mass moving XML DOM bugs to the "DOM" Component. 1503701 4 zcorpan 2019-02-07 04:18:44 -0800 New URL to reproduce: http://software.hixie.ch/utilities/js/live-dom-viewer/saved/6580 says [object ProcessingInstruction] should say [object DocumentType]. <!DOCTYPE html> ...<iframe src="data:text/xml,<!DOCTYPE html [<?x?>]><html xmlns='http://www.w3.org/1999/xhtml'><script>alert(document.documentElement.previousSibling)</script></html>"> or: http://software.hixie.ch/utilities/js/live-dom-viewer/saved/6581 The xml-stylesheet should not apply but is applied. <!DOCTYPE html> ...<iframe src="data:text/xml,<!DOCTYPE html [<?xml-stylesheet href='data:text/css,*{background:red}'?>]><html xmlns='http://www.w3.org/1999/xhtml'>There should be no red.</html>"> 1890252 5 ahmad.saleem792 2022-08-10 04:19:39 -0700 I am able to reproduce this based on Test cases from Comment 04: Test Case 1 - http://software.hixie.ch/utilities/js/live-dom-viewer/?saved=6580 *** Safari 15.6 on macOS 12.5 *** [object ProcessingInstruction] & DOM View: DOCTYPE: html *** Chrome Canary 106 *** [object ProcessingInstruction] & DOM View: DOCTYPE: html HTML HEAD BODY #text: ... IFRAME src="data:text/xml,<!DOCTYPE html [<?x?>]><html xmlns='http://www.w3.org/1999/xhtml'><script>alert(document.documentElement.previousSibling)</script></html>" *** Firefox Nightly 106 *** [object DocumentType] & DOM View: DOCTYPE: html HTML HEAD BODY #text: ... IFRAME src="data:text/xml,<!DOCTYPE html [<?x?>]><html xmlns='http://www.w3.org/1999/xhtml'><script>alert(document.documentElement.previousSibling)</script></html>" ___________ Test Case 2 - http://software.hixie.ch/utilities/js/live-dom-viewer/?saved=6581 *** Safari 15.6 on macOS 12.5 *** Show Red background in iframe *** Chrome Canary 106 *** Show Red background in iframe *** Firefox Nightly 106 *** Does not show "Red" background in iframe _________ Just wanted to share updated test results. Thanks! 1890341 6 webkit-bug-importer 2022-08-10 10:52:07 -0700 <rdar://problem/98459822> 1928684 7 zcorpan 2023-01-26 12:57:37 -0800 Tests: https://github.com/web-platform-tests/wpt/pull/38136 2002299 8 ahmad.saleem792 2023-12-30 06:00:13 -0800 WPT Test Case: https://wpt.fyi/results/dom/nodes/ProcessingInstruction-in-doctype.xhtml?label=master&label=experimental&aligned= https://wpt.fyi/results/dom/nodes/Comment-in-doctype.xhtml?label=master&label=experimental&aligned= https://wpt.fyi/results/css/cssom/xml-stylesheet-pi-in-doctype.xhtml?label=master&label=experimental&aligned=