A11ying with Sanna - Web Content Accessibility Guidelines a guide to the accessibility requirements
3 Understandable

3.2.5 Change on Request

Conformance level: AAA
Criterion released in WCAG version: 2.0

Official description of the success criterion

Changes of context are initiated only by user request or a mechanism is available to turn off such changes.

What to do?

Ensure changes of context are initiated only upon user request.

Why is it important?

Provides predictability and control to users.

More about this criterion elsewhere