Stale BaseAudioContexts in the drop-down menu about audion

[hoch]

Confirmed the fix locally. Thanks @richnoah and @mzgoddard!

[richnoah]

@hoch https://googlechromelabs.github.io/web-audio-samples/audio-worklet/basic/hello-audio-worknodlet/ is returning an error 404.

[hoch]

The link updated. There was a typo.

[richnoah]

@hoch @mzgoddard I was able to replicate the growing list of offline entries in the menu. I also noticed that when I was https://googlechromelabs.github.io/web-audio-samples/audio-worklet/basic/noise-generator/ and hit refresh on the browser that the number of OAC entries on the menu increased by one each time.

Steps to reproduce:

1. Open up Chrome
2. Open DevTools (ensure Web Audio shows as a tab in DevTools - if not acquire Audion)
3. Go to https://googlechromelabs.github.io/web-audio-samples/audio-worklet/
4. Check the drop-down menu in Web Audio DevTools to ensure (no recordings) is the only entry present
5. Click/Tap https://googlechromelabs.github.io/web-audio-samples/audio-worklet/basic/noise-generator/
6. Check the drop-down menu and see one offline entry and one real-time entry
7. Click/Tap back on the browser
8. Check the drop-down menu and see two offline entries
9. Click/Tap https://googlechromelabs.github.io/web-audio-samples/audio-worklet/basic/bit-crusher/
10. Check the drop-down menu and see three offline entries and one real-time entry
11. Click/Tap refresh on the browser
12. Check the drop-down menu and see four offline entries and one real-time entry
13. Click/Tap refresh on the browser
14. Check the drop-down menu and see five offline entries and one real-time entry

OS: MacOS 12.3.1 (Intel)
Browser: Chrome Version 100.0.4896.127 (Official Build) (x86_64)
Extentions: Aduion version 3.0.5

I also noticed the following errors in the console. These were present for both the of the test urls I noted above:

• Error with Permissions-Policy header: Unrecognized feature: 'interest-cohort'.
• DevTools failed to load source map: Could not load content for https://googlechromelabs.github.io/web-audio-samples/assets/milligram.min.css.map: HTTP error: status code 404, net::ERR_HTTP_RESPONSE_CODE_FAILURE

[richnoah]

Upon further discovery it was determined that the following error is being produced when refreshing or navigating:

Unchecked runtime.lastError: {"code":-32000,"message":"Cannot find BaseAudioContext with such id."}

The error is unchecked and causes an unknown state.

@hoch would you please try and reproduce by opening an inspector on the Web Audio panel and confirm if you also see the same error message as above.

[hoch]

I can try, but this can be fixed by swallowing the error if there's no matching ID in the application or the dropdown menu. What do you think, @mzgoddard?

[hoch]

Friendly ping - @richnoah @mzgoddard!