R/aria-in-html/#notes-on-aria-use-in-html">notes on ARIA use</a>.</li>
<li><strong>Focus management</strong>: Guide the user around the app as views are appended/removed.
Focus should <em>never</em> be lost, as this causes unexpected behavior and much confusion (referred to
as &quot;freak-out mode&quot;).</li>
<li><strong>Announcing changes</strong>: When filtering or other UI messaging happens away from the user&#39;s focus,
notify with <a href="https://developer.mozilla.org/en-US/docs/Web/Accessibility/AR