How to Debug Grunt Mocha Task?

Question

I am using WebStorm to run a grunt task. The debugger successfully stops at the breakpoint in the Gruntfile.js file, but not in my task file.

In the Gruntfile.js I regis

Answer 1

Finally I am able to debug my mocha tasks! Thanks for all your answers and comments, but unfortunately I have to select my own answer, because that is the only one that worked for me.

Thanks to this video I found out what I was missing: http://vimeo.com/97561531

Basically it was two things:

1. Add a "debug-brk" option to grunt's mocha configuration:

   grunt.initConfig({
       ...
           "options": {
               "mocha": {
                   ...
                   "debug-brk": (grunt.option('debug-brk')) ? "" : 0
               }
           }
   }
   

2. Configure WebStorm's Debug Configuration like this: