Created by: TLadd
Pulled my fork of react-scripts in and ran yarn build --stats && webpack-bundle-analyzer build/bundle-stats.json. Can read about the details of this change in https://github.com/facebook/create-react-app/issues/4769, which also has a more thorough example of the effects of this webpack config change.
The source for the below screenshot has one dynamic import import("zxcvbn")
Before:
After:
Notice that 0.b6c8f3e4.chunk.js is split out of the vendor chunk, which contains zxcvbn.