Last I checked that without JavaScript details / summary has accessibility issues. That is, you need JS to add aria-open or similar.

It’s odd and frustrating that such an essential tag is not defined to be accessible, afaik.

Why would you need aria attributes if it's summary tag?

	▲	chiefalchemist 2 hours ago \| parent [-]
		I presume it has to do with AT and how it typically interprets the tag. TBH IDK other than I’ve seen it come up in accessibility discussions / groups.