This is most likely a Chromium regression, but it's unclear which version introduced it. I hope the community can provide more information. In the meantime, I will report this issue to the Chromium team.

Steps to reproduce:

1. Open the following Wikipedia page: https://en.wikipedia.org/wiki/Quadratic_equation
2. Use NVDA to locate the mathematical content on the page. You can use Single Letter Navigation commands.
3. Press the space key on the math content to try interacting with it.
4. Use the left/right arrow keys to navigate the math content.

Actual behavior:

• Step 3: Unable to enter interactive mode.
• Step 4: Unable to navigate or find the math object.

Note: Using object navigation (NVDA+numpad4/6), you can locate the mathematical content, but interaction is still not possible.

Expected behavior:

NVDA should be able to interact with math content in Chromium, just like it does in Firefox.

NVDA logs, crash dumps, and other attachments:

System configuration:

NVDA installed/portable/running from source:

Installed

NVDA version:

2024.4.1 (Alpha snapshot)

Windows version:

Windows 10 22H2 (AMD64) Build 19045.5131

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

Chrome 131.0.6778.86

Other information about your system:

None

Other questions:

Does the issue still occur after restarting your computer?

Yes

Have you tried any other versions of NVDA? If so, please describe their behavior:

The issue can be reproduced in versions 2024.1, 2024.2, and 2024.3.

If NVDA add-ons are disabled, does the problem still occur?

Yes

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

Yes