Another project which my employer,
Barc, is allowing to be open sourced under the MIT license.
`express-error` displays source code in express error handler page for JavaScript and CoffeeScript. This is tremendously helpful for CoffeeScript developers as the line number for errors corresponds to the compile JavaScript source code. This plugin shows context around the error so you can figure out where that pesky bug is.
I just extracted this from our framework so please report any bugs you find.