`<header>` with `aria-label`

VoiceOver: Announce next item: VO + Right Arrow
NVDA and JAWS: Announce next line: DOWN ARROW

This test case is designed to determine how the <header> element and an associated aria-label are announced by various screen readers.

In this case, the element should be announced as a banner landmark.

By default, the element being tested does not receive focus, so the only way to test how it is announced is via:

Example

<header aria-label="Site info">
  <h4>Test content</h4>
</header>

Chrome: Site info. Banner. [Stop] Heading level 4. Test content. [Stop]. End of Site info. Banner.
Firefox: Site info. Banner. [Stop] Heading level 4. Test content. [Stop]. End of Site info. Banner.
Safari: Site info. Banner. [Stop] Heading level 4. Test content. [Stop]. End of Site info. Banner.