JAWS does not announce aria-describedby or aria-required when contenteditable="true" elements have content

[greypants]

Summary

JAWS does not announce aria-describedby or aria-required when contenteditable="true" when the container has content.

Works with an empty element (label, description, and required are read):

<label id="label">My Label</label>
<div 
  role="textbox" 
  contenteditable="true" 
  tabindex="0" 
  aria-labelledby="label" 
  aria-describedby="description" 
  aria-required="true">
</div>
<p id="description">My description</p>

Fails when text content is present (only label is read):

<label id="label">My Label</label>
<div 
   role="textbox" 
  contenteditable="true" 
  tabindex="0" 
  aria-labelledby="label" 
  aria-describedby="description" 
  aria-required="true">
    Some content
</div>
<p id="description">My description</p>

1. Go to https://codepen.io/greypants/pen/LYQgqLm?editors=1100
2. Tab through the examples, and note what JAWS reads

Expected result

All examples should read the label, description, and required status when the textbox is focused.

Actual result

Examples 4 and 5 do not read the description or required status.

Example

https://codepen.io/greypants/pen/LYQgqLm?editors=1100

Additional Information

The behavior works properly on the other screen readers I'm testing:

• VoiceOver/Safari/Mac OS 12
• NVDA/Edge/Windows 10

JAWS version and build number

2022.2202.38 LIM

Operating System and version

Windows 10 (via Parallels desktop VM on Mac OS 12.3.1)

Browser and version:

Microsoft Edge 100.0.1185.39

[JAWS-test]

The cause seems to be the same as with textarea. JAWS treats both elements the same, see #484 and #201