Wysiwyg HTML tags to allow

TOPIC: what should wysiwyg allow?

I am increasingly getting warnings that wysiwyg is "temporarily" allowing certain tags, and this of course worries me that at some point these will get locked out.

One option is that this is made extensible/editable in an official, documented manner (that isn't overwritten by releases), the other option is to have a discussion and get these lists extended?

missing tags - these seem harmless why aren't they in?

blockquote / q for quotes
abbr / cite for references (semantic/machine readable/accessibility)
code / pre for unformatted
details / summary for a hide/show mechanism in the browser
dl dd dt
figcaption for figure (accessibility)
picture (for responsive)
del / s / ins for text removed/ added that needs to remain visible as such (legal requirements in some parts)
mark (for highlighter)
small, sub, sup
thead / caption for table (they improve accessibility!)
data - for structured data/search engine enhancements
col colgroup section article aside - document structure

svg - ok that's probably more complicated

should be allowed in every tag:

aria tags - some of us try to keep things accessible

making sense in static wysiwyg

role
aria-colcount
aria-colindex
aria-rowcount
aria-rowindex
aria-colspan
aria-rowspan
aria-details
aria-expanded
aria-flowto
aria-hidden
aria-label
aria-level
aria-roledescription

specific combinations

The issue names no files, tests, or entry points. First trace how WYSIWYG HTML and ARIA allowlists are configured and preserved across releases, then determine whether the request needs documented extensibility or a defined tag-list expansion. Done means the scope is agreed and the resulting behavior is covered by implementation and documentation.