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MissingAriaConnectionAnalyzer
Validates aria-labelledby, aria-describedby, and aria-controls targets exist.
What it detects
An `aria-labelledby="foo"` is harmful if no element with `id="foo"` exists — the assistive technology gets nothing where it expected a name. Cross-references ARIA reference attributes against actual element ids in the DOMModel.
WCAG criteria
- 1.3.1 — Info and Relationships
- 4.1.2 — Name, Role, Value
Example
<input aria-labelledby="lbl-name" />
<!-- no element with id="lbl-name" anywhere on the page -->Paradise reports: Element references `aria-labelledby="lbl-name"` but no element with that id exists.