Debugging Asteroid

I’m using asteroid to build a chrome extension with a Meteor backend…the login methods work but I’ve hit a roadblock with the subscription mixin not returning any of my colllections. As far as I can see it’s pretty straight forward but it is just not working. I’d like to see if I can debug the asteroid package and see i I can fix what’s wrong myself though I have no previous experience debugging packages. I’ve downloaded node-inspector but I’m seeing putting breakpoints has no effect in this setting, any does anyone have any experience, suggestions or hints into where I could go with this? Thanks!