Since the deleteFromDocument() method can change the DOM in ways that may impact custom elements, it needs to be annotated with the [CEReactions] attribute. This is part of the larger effort at w3c/webcomponents#186. [CEReactions] is defined in https://html.spec.whatwg.org/multipage/scripting.html#cereactions.
Since the deleteFromDocument() method can change the DOM in ways that may impact custom elements, it needs to be annotated with the [CEReactions] attribute. This is part of the larger effort at w3c/webcomponents#186. [CEReactions] is defined in https://html.spec.whatwg.org/multipage/scripting.html#cereactions.