... read the whole story at github.com.
Webpack plugin that warns you when multiple versions of the same package exist in a build.
It might be possible that a single package gets included multiple times in a Webpack build due to different package versions. This situation may happen without any warning, resulting in extra bloat in your build and may lead to hard-to-find bugs.
This plugin will warn you of such cases to minimize build size and avoid bugs caused by unintended duplicate packages.
Motivation: https://github.com/webpack/webpack/issues/385 and https://github.com/webpack/webpack/issues/646