Rule: Values must be valid

Rule ID Widget 4
Conformance Required
Definition ARIA property and state values must be valid types.
  • ARIA attributes must be a valid type to accurately describe web content to users of assistive technologies, especially screen reader users.
Conformance Required
WCAG Success Criteria

Success Criterion 4.1.2 Name, Role, Value

Rule Category ARIA Widgets
Rule Scope Element
  • Use valid values for ARIA attributes.
  • Check W3C WAI Accessible Rich Internet Applications specification for allowed values for ARIA attributes.
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