Error while debugging client-side Javascript on Edge/Chrome for Node app

Question

I'm following the steps here: https://learn.microsoft.com/en-us/visualstudio/javascript/tutorial-nodejs-with-react-and-jsx?view=vs-2022

Everything is fine up until I try to attach to process onto the browser for debugging client-side. I'm getting an error in the output window:

Exception thrown at 0x00007FF8693B051C (KernelBase.dll) in msedge.exe: WinRT originate error - 0x83750007 : ''input': Value must not be empty.'.

As well as the attached DebugAdapterHost-jsdebug.log file

The log file seems to claim there is incomplete code...?

This results in the breakpoints not getting attached, even though I have made sure to close all other browser tabs/windows (except Firefox), and am trying to debug on Edge (which I never use and has no extensions installed).

I saw almost nothing online about this, just a lot of similar situations that didn't seem to offer working solutions.