Why it matters
Keyboard users can focus something that screen readers claim does not exist.
How to fix it
Make the content inert (inert attribute) or remove aria-hidden.
References
More accessibility rules
void a11y reports 48 rules in this category. WCAG 2.2 AA through axe-core, plus checks axe can't do alone: visible keyboard focus, 24/44px target size on mobile, 320px reflow and disabled zoom.
aria-required-parentARIA role is missing its required parentaria-rolesInvalid ARIA rolearia-valid-attrInvalid ARIA attribute namearia-valid-attr-valueInvalid ARIA attribute valuearia-hidden-bodyaria-hidden on <body>aria-command-nameARIA button/link/menuitem has no accessible namearia-input-field-nameARIA input field has no accessible namearia-toggle-field-nameARIA toggle has no accessible name