Bugzilla

The context of controls is missing. 
Alternative resolution may be using `aria-labelledby` on the (shadow DOM) `<button>` element that would refer to both the `id` of its `<label>` and the text element that includes the topic's name.

The context of controls is missing. 
Alternative resolution may be using `aria-labelledby` on the (shadow DOM) `<button>` element that would refer to both the `id` of its `<label>` and the text element that includes the topic's name.

Thus, it's expected to get `aria-labelledby="buttonID headingID"` or, since it involves shadow DOM and these `id` references may not be calculated, an `aria-label="button-label-string heading-text-string"` could be used as a backup.