Indium – the JavaScript development environment for Emacs – version 0.7 was released a few days ago!

This release brings a major improvement: support for source maps (see the documentation).

Source maps make it possible to us a source JavaScript file (not built/minified) while a minified file is served. Indium supports source maps both for debugging and setting breakpoints.

Installation and update instructions can be found in the documentation. You can also check out the project on GitHub.