cjson - Commented JavaScript Object Notation. It is a json loader, which parses only valid json files, but with comments enabled. Useful for loading configs.
Packs ECMAScript/CommonJs/AMD modules for the browser. Allows you to split your codebase into multiple bundles, which can be loaded on demand. Supports loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.