Chrome Version: 69.0.3497.100
OS: Linux

Support for nested WebWorkers (starting a Worker from a Worker) was added to Chrome recently ( crbug.com/31666 )
however Devtools Performance tab doesn't seem to display data for the nested Worker.

Repo[1]:
Visit: https://chromy.github.io/bug-chromium-nested-workers/
Record a perf trace: Devtools > Performance > Ctrl+Shift-E

Expected:
Should see three js tracks:
Main - https://chromy.github.io/bug-chromium-nested-workers/
Worker - https://chromy.github.io/bug-chromium-nested-workers/a.js
Worker - https://chromy.github.io/bug-chromium-nested-workers/b.js

Actual[2]:
See two js tracks:
Main - https://chromy.github.io/bug-chromium-nested-workers/
Worker - https://chromy.github.io/bug-chromium-nested-workers/a.js

[1]: https://github.com/chromy/bug-chromium-nested-workers
[2]: https://i.imgur.com/zCe8OuY