Angular: CommonJS or AMD dependencies can cause optimization bailouts

[shaozi]

When using Angular, importing from vis-network

import {
  Network,
  Node,
  Data,
  Options,
} from 'vis-network'

and it caused this warning:

Warning: ... depends on 'vis-network'. CommonJS or AMD dependencies can cause optimization bailouts.
For more info see: https://angular.io/guide/build#configuring-commonjs-dependencies

[technbuzz]

Even when it's imported from esnext

import { Network } from 'vis-network/esnext'

still we get the following

node_modules\vis-network\esnext\esm\vis-network.js depends on 'component-emitter'. 
CommonJS or AMD dependencies can cause optimization bailouts.
For more info see: https://angular.io/guide/build#configuring-commonjs-dependencies

[kponichtera]

I can confirm that it is still an issue with version 9.1.9 of vis-network. It makes the application bundle larger by almost one megabyte for Angular app with a simple demo of vis network usage, which is a lot.