Just checking in to see if there’s any movement on this.
This would still be extremely helpful for any Discourse site that uses math, especially for educational, academic, or scientific communities.
Currently, [details="..."] titles strip or ignore all BBCode and KaTeX/MathJax, even with the official plugins installed and working in the body.
Example broken cases:
[details="Color: [color=blue]important[/color]"]→ renders as plain[color=blue]important[/color][details="$\vec{v}$-based solution"]→ renders as plain$...$text
There’s no workaround as far as I can tell. Even using raw HTML <details><summary> doesn’t help, and attempts to apply raw="true" fail due to summary tags being sanitized early.
Would love to see this supported — even conditionally when the relevant plugin is active.
Happy to test or help spec this if needed.