The site now has polygot markup and can handle both XHTML5 and HTML5
parsing rules. My staging site will be XHTML but my main site will be
HTML5, just in case of parse errors.
If other tools (e.g. LightHouse) end up supporting XHTML5, I'll consider
switching the content-type to XHTML.
- Stop using draft WAI-ARIA 1.3 that isn't supported yet
- Make in-page links focusable across shortcodes/partials
- Replace existing in-page heading anchor links with a more accessible
option.
- Make backlinks aria-labelledby instead of giving them an aria-label,
so they can be translated.
