visionmedia/mocha — pull request #1216 by nopnop (2014-05-16 15:41:58+00:00)
Title: mocha.run() never return error status on browser

`Mocha.prototype.run([callback])` provide an error status to the callback (0/1).
But this value is not forwarded to the browser callback.

Example:

mocha.run(function(err) {
console.log(err); // Always undefined
})