Process hangs after recording finished

[dcprime]

I'm using puppeteer-stream to log into a webpage, click the play button on an embedded screen-reader, record the output, and save the audio to a file. My code is largely based on the example code provided in the repo. However, whenever I get to the end of the process, the browser will not close, and even if I close it manually, the process still hangs until I hit ^C to stop it.

If I attempt to call browser.close(), I get an error:
TargetCloseError: Protocol error (Runtime.callFunctionOn): Target closed

I noticed that the process opens 3 browser tabs:

1. One empty tab
2. One with the content I am navigating to
3. One with a URL that looks like a Video Capture chrome extension

Closing these 3 tabs individually using page.close() for each will also give the same TargetCloseError when the final one is closed.
I need a way to end this process without it hanging or throwing this TargetCloseError.