Page Title: OEM / ODM
August 19, 2021 00:59

ARIA values must be valid

Page 1: OEM / ODM

Actions

Severity Action
no actions

Details

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

4.1.2 Name, Role, Value (Level A, Primary Success Criterion)

Rule Category Widgets/Scripting
Scope Element
Target Resources Elements with aria attributes
  • [aria-atomic]
  • [aria-autocomplete]
  • [aria-busy]
  • [aria-checked]
  • [aria-disabled]
  • [aria-dropeffect]
  • [aria-expanded]
  • [aria-grabbed]
  • [aria-haspopup]
  • [aria-hidden]
  • [aria-invalid]
  • [aria-label]
  • [aria-labelledby]
  • [aria-live]
  • [aria-multiline]
  • [aria-multiselectable]
  • [aria-orientation]
  • [aria-pressed]
  • [aria-readonly]
  • [aria-relevant]
  • [aria-required]
  • [aria-selected]
  • [aria-sort]
Techniques
  • Use valid values for ARIA attributes.
  • Check W3C WAI Accessible Rich Internet Applications specifications for allowed values for ARIA attributes.
Informational Links

Element Results

Element Identifier Result Element Position Message

Column Definitions

Element Identifier
Information about the element associated with the result.
The information typically includes the tag name, accessible name or other information related to the rule requirements.
"Page" means that the result applied to the page. For example, the rule "One main landmark on the page" is a page level rule.
Element Position
The element position is based on the DOM order of elements in the page.
The element position maybe useful in helping to locate a specific element on the page evaluated (e.g smaller numbers are typically toward the beginning of a page and larger numbers typically toward the end of a page).
Element position 1 is the first element.
The highest element position is the last element.
Element position values for most rule/page results will not be consecutive since a rule only applies to a sub set of elements found on a page.