26899 2014-09-24 21:22:33 +0000 [Shadow]: ShadowRoot.getElementById overrides DocumentFragment's getElementById 2014-09-25 03:16:28 +0000 1 1 1 Unclassified WebAppsWG HISTORICAL - Component Model unspecified PC Linux RESOLVED FIXED P2 normal --- 14978 1 bugs hayato adamk annevk hayato mike public-webapps public-webapps-bugzilla oldest_to_newest 112134 0 bugs 2014-09-24 21:22:33 +0000 ... but ShadowRoot.getElementById() returns HTMLElement, not Element like the DocumentFragment's getElementbyId() http://w3c.github.io/webcomponents/spec/shadow/#shadowroot-object https://dom.spec.whatwg.org/#nonelementparentnode 112138 1 annevk 2014-09-24 21:46:22 +0000 Why does it override it to begin with? I think that's a separate bug. 112139 2 bugs 2014-09-24 21:49:39 +0000 perhaps I was unclear. I think ShadowRoot shouldn't have getElementById, since it is there already in DocumentFragment. 112149 3 adamk 2014-09-24 22:31:32 +0000 Looks like the mismatched return type is only a spec bug: Blink's ShadowRoot.idl lists the return time as Element. 112160 4 hayato 2014-09-25 02:28:58 +0000 Nice catch. It seems we can get rid of getElementById from ShadowRoot. Let me update the spec. 112161 5 hayato 2014-09-25 03:16:18 +0000 Fixed: https://github.com/w3c/webcomponents/commit/3d5f147812edaf74cc4f07d294836cafdf48534f