Create-react-app: v2: Dynamic import returns object instead of function

[sylvhama]

Is this a bug report?

Yes

Did you try recovering your dependencies?

Yes

Which terms did you search for in User Guide?

Dynamic import

Environment

CRA v2.0.0

Steps to Reproduce / Reproducible Demo

After updating react-scripts to v2 I can see an error Unhandled Rejection (TypeError): throttle is not a function.
In my code I do a dynamic import of lodash throttle. I created a codesandbox to reproduce what I do: https://codesandbox.io/s/4jp4j3l360 if you test with the deployed version you will notice in the console that an object is returned: https://csb-4jp4j3l360-jfpilaxokx.now.sh/

Expected Behavior vs Actual Behavior

The dynamic import should return a function isntead of an object.

[Timer]

Wait, I think this is expected. You have to import('').default, I believe.

[Timer]

Yes, see https://medium.com/webpack/webpack-4-import-and-commonjs-d619d626b655. We should document this as breaking behavior and provide migration instructions.

[sylvhama]

Thank you for your answer, your solution works.

[Timer]

We will add this to the breaking migration instructions.

[Timer]

Documented in the migration instructions.