Update accessibility guidelines for tab and tabpanel#2690
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PR to add duplication of requirements between tab and tabpanel - see #2500 (comment) note i also duplicated the author should requirement for programmatically associating the tab with the tabpanel, since that seems important to call out these options re: validator/validator#1817
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Pull request overview
This PR duplicates accessibility requirements between the tab and tabpanel role definitions to ensure consistency in documentation. The changes align with W3C ARIA issue #2500 and validator issue #1817, ensuring that both roles document the MUST requirement for rendering active tabs/panels and the SHOULD requirement for programmatic association.
- Adds the active tab/tabpanel rendering requirement to both role definitions
- Documents association methods using
aria-controlsandaria-labelledbyin both sections - Adds HTML comments to mark synchronized content blocks
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jnurthen
approved these changes
Dec 9, 2025
adampage
approved these changes
Dec 9, 2025
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🔄 this PR updates the following sspecs:
PR to add duplication of requirements between tab and tabpanel - see #2500 (comment)
note i also duplicated the author should requirement for programmatically associating the tab with the tabpanel, since that seems important to call out these options re: validator/validator#1817
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