[edit]: We found two solutions: https://stackoverflow.com/questions/50062264/webpack-4-code-splitting-and-var-injection/50068935#50068935
How to optimize vendor and register globals ?
This is an example with an heavy dependency (moment) and babel-polyfill. There is 2 webpack configs:
yarn start: moment and babel-polyfill are in vendor chunk and start app in dist: http://127.0.0.1:8080/
We can see in the console, the regeneratorRuntime polyfill is correctly registered but moment is duplicated in app and vendor chunk.
yarn start2: same as above with optimization.splitChunks which test vendor
this start app in dist2: http://127.0.0.1:8080/
When debugging we see that vendor is loaded right after manifest and finally app. But app is executed before vendor.
In the working example, vendor is executed right after being loaded (before app being loaded)
- put polyfill in app: I don't want that
- leave webpack do the code splitting itself: I don't want that because in real world I want very long caching even betwwen release on vendor and keep app as small as possible
- the webpack config is incorrect: Please tell me :)