Not reading aria-description when there are 2 consecutive spaces in the string. (Firefox)

[pferreeHogan]

Steps to reproduce:

In FireFox v109.0, given the following code:

<div aria-role="figure" aria-label="Label 1" aria-description="This description is read.">
  <span aria-hidden="true">content</span>
</div>
<div aria-role="figure" aria-label="Label 2" aria-description="This description is not read because of the extra space between these words, dog  cat.">
  <span aria-hidden="true">content</span>
</div>

Actual behavior:

The first div is communicated correctly (both label and description), the second just reads the label, not the description.

Expected behavior:

The aria-description for "Label 2" is communicated as well.

NVDA logs, crash dumps and other attachments:

System configuration

NVDA installed/portable/running from source:

NVDA version:

Windows version:

Name and version of other software in use when reproducing the issue:

Other information about your system:

Other questions

Does the issue still occur after restarting your computer?

Have you tried any other versions of NVDA? If so, please report their behaviors.

If NVDA add-ons are disabled, is your problem still occurring?

Does the issue still occur after you run the COM Registration Fixing Tool in NVDA's tools menu?

[jcsteh]

This occurs because Firefox compresses multiple spaces down to one space in IAccessible::accDescription, but not in the description object attribute. This issue will be eliminated when Firefox implements the description-from object attribute, though a small change will be needed in NVDA to make it use that instead of the description object attribute.

[pferreeHogan]

Thanks for the explanation and update!