Radio Button Has Invalid Aria Attribute

[JamieCleare2525]

We have recently had our Accessibility Audit and it has been raise that when using a radio button with conditional content (https://govuk-form-builder.netlify.app/form-elements/radios/#radios-fieldset-with-conditional-content-and-a-divider), it created an ARIA attribute which is not allowed.
ARIA attribute is not allowed aria-expanded=true.

Is there a way of resolving this issue?

[peteryates]

The string expanded doesn't appear in this library, it must be coming from elsewhere - probably here:

https://github.com/alphagov/govuk-frontend/blob/main/packages/govuk-frontend/src/govuk/components/radios/radios.mjs#L106

I'd probably trust the upstream GOV.UK frontend team more than the accessibility auditors, but might be worth reporting regardless.