[Webkit-unassigned] [Bug 184307] CustomElements are not always properly upgraded when created via innerHTML

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Fri Aug 3 01:01:56 PDT 2018


--- Comment #7 from Frédéric Wang (:fredw) <fred.wang at free.fr> ---
(In reply to Ryosuke Niwa from comment #6)
> Huh, there is a bunch of bugs here but one of the primary issue here is that
> innerHTML is synchronously constructing custom elements. I don't think we're
> supposed to do that.

I think when setting innerHTML, the HTML fragment parsing algorithm is used so we should create an HTMLElement and enqueue an upgrade for later per https://html.spec.whatwg.org/multipage/parsing.html#create-an-element-for-the-token... This is what the patch on bug 183586 is supposed to do (see also bug 188190 for preliminary work).

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