--enable-source-maps does not work in worker_threads

[cspotcode]

• Version: v14.8.0
• Platform: Linux (Ubuntu)
• Subsystem: worker_threads and source-maps

What steps will reproduce the bug?

Here is a complete, minimal reproduction executed on Github Actions.
https://github.com/cspotcode/repros/tree/node-source-map-worker-thread

1. Create a worker_thread
2. In the worker_thread, execute a .js file with a sourcemap.
3. Log new Error().stack within the worker_thread. See that the stack does not have sourcemap information.
4. Run exactly the same code in the main thread to see that the stack has sourcemap information, proving that the sourcemap is valid.

How often does it reproduce? Is there a required condition?

Always.

What is the expected behavior?

Sourcemap information is included in a stack trace within a worker_thread if that information is included in the stack traces in the main thread.

What do you see instead?

Worker thread stacks do not include sourcemap information even though main thread stacks do.

Additional information

[Leko]

This problem seems to be fixed on the master branch. But it's not fixed on the latest release(v14.9.0).

[Hashbrown777]

Still broken in v14.16.0, even explicitly setting execArgv doesn't help.

[deftomat]

Works in 14.17.3

[Hashbrown777]

Can confirm, 14.17.3 became available on CentOS 8, and no longer exhibits the problem.

[targos]

I'll close, assuming this is fixed. Feel free to ask to reopen if it's not the case.