An input can have a visible hint and still fail to expose that hint as a programmatic description. One cause is a stale aria-describedby ID: the attribute names an element that is no longer on the page. This can happen when a component changes its error state or a template duplicates a form.

Source: [Dev.to](https://dev.to/cat_b6311d81e19dfa8/a-tiny-dom-check-for-broken-aria-describedby-references-5f42)

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