title: Accessibility issue with aria-controls
body: <p>I am working on a requirement which has a button, and upon clicking on a button, a new <code>panel</code> opens on the right side. </p>
  
  <p>Using <code>aria-controls</code> i was able to get JAWS announce when a new <code>panel</code> opens up(when the button is clicked). But, it does not work with Voice Over(VO). Can anyone suggest how to make it work on both JAWS and VO?</p>
  
  <p>For reference i am attaching a screenshot of the UI<a href="https://i.stack.imgur.com/EAimx.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/EAimx.png" alt="enter image description here"></a></p>