Works in development but 'npm run build' silently fails to add index.html and JS bundles to build folder

[titocosta]

Everything works well when running npm start in development.

npm run build runs with no error messages, but build folder doesn't contain index.html file or any .js bundle.
I tried deleting the build folder, only static images get added.

Not sure how to provide any further error message to help resolve.

[titocosta]

After addressing the silent failure of npm run build by changing the build.js script as described in this create-react-app issue, it appears the underlying error is that I am using importScripts in my webworker and I get a importScripts is not defined error.

[titocosta]

Shortcut I used is to just add /* eslint-disable */ at the top of the web worker .js file.