Re: [WICG/webcomponents] Creating non-ugraded defined custom element : `createElement(tagname, {upgrade:false})` (Issue #1097) from Anne van Kesteren on 2025-02-18 (public-webapps-github@w3.org from February 2025)

From: Anne van Kesteren <notifications@github.com>
Date: Tue, 18 Feb 2025 00:36:31 -0800
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annevk left a comment (WICG/webcomponents#1097)

That's because you're creating an element in the null namespace rather than the HTML namespace. Use `const a = d.createElementNS("http://www.w3.org/1999/xhtml", "a-a");` and it'll work.

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Received on Tuesday, 18 February 2025 08:36:35 UTC