This looks like the build a typical webpack development config spits out (using its eval devtool [1]), could be that the author hasn't set up a production build

This looks like the build a typical webpack development config spits out (using its eval devtool [1]), could be that the author hasn't set up a production build yet. [1] https://webpack.github.io/docs/configuration.html#devtool https://webpack.github.io/docs/configuration.html#devtool