Custom elements or dynamic content include appropriate
aria-braillelabel and
aria-brailleroledescription attributes AND
other non-braille alternatives.
Missing aria-braillelabel:
This pi symbol lacks an aria-braillelabel:
π
Note: Hard to auto-test (auto-testing partially possible?). Requires a
human tester/AI to determine if an aria-braillelabel is required or
necessary.