I believe I have discovered a regression in NVDA. @jcsteh can correct me if I am misremembering, but I recall NVDA used to toggle browse mode off if focus was moved to an HTML list made interactive with tabindex and keyboard shortcuts implemented in JavaScript. Reason I remember this: while I was working at Twitter I made the timeline an interactive list so that customers could use keyboard shortcuts provided by Twitter to navigate their home timeline. And I recall working with @jcsteh on ensuring this worked in NVDA. Interestingly, the same code example I provided in this bug report works fine in JAWS in that it toggles browse mode off when focus lands on an ARIA listitem instance.

Steps to reproduce:

1. Start NVDA
2. Open https://codepen.io/toddlr/pen/mdBjoJV
3. Use tab-key navigation to move focus to the first ARIA listitem in the ARIA list

Actual behavior:

NVDA doesn't toggle browse mode off

Expected behavior:

NVDA should toggle browse mode off so the up/down arrow keys can be used to navigate (move focus) between listitems in the list

System configuration

NVDA installed/portable/running from source:

NVDA version: 2021.3.1

Windows version: Windows 10

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?

Yes

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

No

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

I'm not using any add-ons

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

Yes