I've been playing with webpack and during the build I see it output:
+ 27 hidden modules. What does it mean by this? Is it detecting global constants that I'm using without requiring them?
Webpack hides modules coming from folders like ["node_modules", "bower_components", "jam", "components"] in your console output by default. This helps you to focus on your modules instead on your dependencies.
You can display them by using the --display-modules argument.