Record functions in react apps

[lachrist]

Currently, I'm not able to record functions in react apps.

https://github.com/land-of-apps/appmap-agent-js-react

It looks like we are no longer able to intercept commonjs and native modules.

Maybe it has to do on how jest spawn test files when using jsdom:

https://github.com/facebook/jest/blob/aef5497c6685e8dd514e3f9ce9c601d03ca3cae2/packages/jest-environment-jsdom/src/index.ts#L63

Maybe the transformer overwrite Module.prototype._compile.

[lachrist]

The issue is that Jest does not stack transformers. Adding --transform '{}' overwrite the previous transform config field. We need to do some deeper configuration resolution to stack transformers ourselves.

[lachrist]

To support stacking of esm transformers we need this:
jestjs/jest#13759