F91: Failure of Success Criterion 1.3.1 for not correctly marking up table headers

Corpus WCAG 2.2Applies to WCAG 2.0, 2.1, 2.2Level AAutomatable: yes

Summary: Failure of Success Criterion 1.3.1 for not correctly marking up table headers

Why it fails: This page reproduces the F91 failure pattern so auditors can verify detection against 1.3.1.

Failure technique

Intentional failure — audit this region

Name	Score
Ada	98

<table class="f91-table">
  <tr><td class="f91-h">Name</td><td class="f91-h">Score</td></tr>
  <tr><td>Ada</td><td>98</td></tr>
</table>

Expected audit result

Manual check: Confirm the specimen demonstrates the documented F91 failure in isolation.