Screen orientation locked Accessibility Checkpoint

Description

Don’t lock the screen orientation on mobile devices.

Help

Locking screen orientation doesn’t work on devices with a fixed orientation. For example, a phone bolted to the arm of a powered wheelchair.

Applicable standards

• ACT Rules b33eff
• WCAG 2.1 (Success Criteria: 1.3.4 level AA)
• WCAG 2.2 (Success Criteria: 1.3.4 level AA)
• EN 301 549 (Success Criteria: 1.3.4 level AA)

Note: EN 301 549 checkpoints are equivalent to WCAG 2.1 level A and level AA checkpoints.

Change history

• 6.41 Jul 2021 Handle new CSS Transforms Level 2 rotate: property.
• 5.37 May 2020 Detect rotations close to 90 degrees.
• 5.36 Jan 2020 Improved detection.
• 5.30 Jul 2018 Added.

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

Rule ID: AccCssTransformOrientationLock