Broken cell headers ID reference Accessibility Checkpoint


Each ID in headers must reference a th cell in the same table.


The headers attribute references a non-existent ID, or references an element which isn’t a th element in the same table, or references itself.

Applicable standards

Note: Section 508 Refresh (2017) checkpoints are equivalent to WCAG 2.0 level A and level AA checkpoints.

Change history

  • 6.47 Dec 2022 No longer fires if non-table ARIA role applied to table element.
  • 6.40 Jan 2021 Improved detection.
  • 5.37 May 2020 Aligned with ACT Rules.
  • 5.8 Mar 2015 Added.

This page describes a web site issue detected in HTML documents by SortSite Desktop and OnDemand Suite.

Rule ID: AccWcag2-F90-1