When custom browser dock is in focuse, "Alt+Space" combination freezes BroadcastChannel communication on it

Operating System Info

Windows 10

Other OS

No response

OBS Studio Version

29.0.2

OBS Studio Version (Other)

No response

OBS Studio Log URL

https://obsproject.com/logs/dZfbyqtAbyc0JJki

OBS Studio Crash Log URL

No response

Expected Behavior

I have a custom browser dock that communicates with some browser sources using JS BroadcastChannel object.
I expect communication to continue all time, regardless of whether any program menus are open.

Current Behavior

When dock is in focuse, "alt+space" key combination will open a dropdown menu (what's expected) and also make the dock to stop receiving and sending messages through BroadcastChannel object.

Steps to Reproduce

1. Add a timer browser source to any scene (https://kravchenkoandrey.github.io/obs_tournament_web_overlay/timer)

2. Add a custom browser dock with a dashboard (https://kravchenkoandrey.github.io/obs_tournament_web_overlay/tournamentDashboard)

3. Set any time to the top text input (1) and click "play/pause" button
   

4. Timer in the browser source will start updating every second, until you click to any place on the dock and press "alt+space" combination

Anything else we should know?

The issue does not reproduce in the chrome browser. Therefore I think that this is OBS problem.

Reproduce the freeze using the linked timer browser source and custom dashboard dock on Windows 10, then investigate how the OBS browser dock handles Alt+Space while BroadcastChannel messages are active. Done means the dock continues sending and receiving BroadcastChannel messages after the menu opens, matching behavior in Chrome.