Firefox for Web DevelopersHTML might be getting a new type of tag, which… hasn't happened this millennium. Here's the new syntax, and how it works.
And here's the explainer on HTML patching https://github.com/WICG/declarative-partial-updates/blob/main/patching-explainer.md
Oblomov@firefoxwebdevs JFC you folks couldn't be arsed to upgrade your XSLT support to 3.0, or to implent STX, XQuery and XHTML, and now this shit?