F10: Failure of Success Criterion 2.1.2 and Conformance Requirement 5 due to combining multiple content formats in a way that traps users inside one format type
Corpus WCAG 2.2Applies to WCAG 2.0, 2.1, 2.2Level AAutomatable: partial
Summary: combining multiple content formats in a way that traps users inside one format type
Why it fails: This page reproduces the F10 failure pattern so auditors can verify detection against 2.1.2.
Failure technique
Understanding
Quickref
Intentional failure — audit this region
F10
<iframe id="f10-trap" title="Embedded widget" width="280" height="120" srcdoc="<button autofocus>Trapped focus</button><p>Tab cannot leave this frame.</p>"></iframe>Expected audit result
- 2.1.2: fail — Specimen demonstrates failure of 2.1.2.
Manual check: Confirm the specimen demonstrates the documented F10 failure in isolation.