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Mouse event handler without keyboard equivalent Accessibility Checkpoint

Description

For script and applet elements, ensure that event handlers are input device-independent. Do not write event handlers that rely on mouse coordinates since this prevents device-independent input.

Help

Add an equivalent event handler that accepts keyboard input via event.keyCode.

Applicable standards

  • WCAG 2.0 (Success Criteria: 2.1.1 level A, 2.1.3 level A)
  • WCAG 2.1 (Success Criteria: 2.1.1 level A, 2.1.3 level A)
  • WCAG 2.2 (Success Criteria: 2.1.1 level A, 2.1.3 level A)
  • Section 508 (2017) (Success Criteria: 2.1.1 level A, 2.1.3 level A)

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

Change history

  • 6.47 Dec 2022 Removed.
  • 5.38 Jul 2020 Changed rule ID from AccWcag1-6.4.1 to AccScriptMouseEventNoKeyboard.
  • 4.0 Jun 2010 Don’t warn about scripts that use character keyCode alongside mouse dependent co-ordinates.
  • 3.0 Dec 2008 More accurate detection of mouse events.
  • 3.0 Dec 2008 Now triggers WCAG2 issue.
  • 1.0 Feb 2007 Added.

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

Rule ID: AccScriptMouseEventNoKeyboard