23795 2013-11-11 21:20:51 +0000 Template elements with the same ownerDocument should share a single contents ownerDocument 2013-11-12 22:14:29 +0000 1 1 1 Unclassified WHATWG HTML unspecified PC Linux RESOLVED FIXED P2 normal Unsorted 1 adamk ian ian mike rafaelw wchen contributor oldest_to_newest 96143 0 adamk 2013-11-11 21:20:51 +0000 The algorithm for creating the content DocumentFragment of templates (http://www.whatwg.org/specs/web-apps/current-work/multipage/scripting-1.html#template-contents) says in step 2.1 to always create a new Document. But this is not what Gecko or Blink do. The following code returns true on both those engines: t1 = document.createElement('template'); t2 = document.createElement('template'); t.content.ownerDocument === t2.content.ownerDocument 96145 1 wchen 2013-11-11 21:28:16 +0000 It seems like the concept of "template contents owner" didn't get carried over from the old spec. https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/templates/index.html#definitions 96198 2 rafaelw 2013-11-12 20:26:51 +0000 Yep. I probably missed this when reviewin Hixie's changes from the stand-alone spec. Apologies. Adam is correct: The original spec (plus WebKit/Blink/Gecko) intentionally avoids creating tons of documents to host template contents. The stand-along spec used the term "template contents owner doc": https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/templates/index.html#dfn-template-contents-owner These steps attempt to create the situation where there is at most one owning document per displayed document which contains templates. 96202 3 ian 2013-11-12 21:36:46 +0000 Huh, that totally went over my head. I didn't realise the implications of how that was defined. My bad. Fixed. 96203 4 contributor 2013-11-12 21:36:57 +0000 Checked in as WHATWG revision r8270. Check-in comment: Share the ownerDocument of template contents amongst the templates of a document. http://html5.org/tools/web-apps-tracker?from=8269&to=8270 96212 5 rafaelw 2013-11-12 22:14:29 +0000 lgtm. thanks, hixie.