I'd like to have Rails produce source maps alongside the compiled coffeescript/minified JS, for better error logging. There doesn't seem to be comprehensive documentation on the net on how to do this, yet, though. Has anyone done this?
I'm on Rails 3.2 and Heroku.
Rails supports source maps for minified JavaScript! Rails relies on Sprockets for asset compilation, and source maps support was added to Sprockets in this pull request.