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Accessible name precedence: Referenced labels are reordered alphabetically · case 03

Referenced labels are reordered alphabetically.

Member previewVariant 3 · 3 implementations · 10 checks per implementation

Case contract

Resolve existing labelledby references in order, including explicit empty labels; then aria-label, native label, and visible content; explicit labels take precedence over fallback content.

Why this case matters

A deterministic model of accessible name precedence; this isolates one interface invariant without requiring a browser.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
reference order	`"Alpha Zulu"`	`"Zulu Alpha"`	Failed

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