grunt-mocha-hack
Forked version of grunt-simple-mocha.
Grunt really doesn't like running after uncaughtExceptions.
But Mocha really likes letting uncaughtExceptions run free.
If you're running tests that should actually be in a browser engine, try: grunt-mocha.
Seriously, though, this project should be dissolved once this shit lands in earnest. (node v0.9.5 looks like the first version with that commit.)