AngularJS Unit Testing: WARN [proxy]: failed to proxy /.../logo.png (connect ECONNREFUSED)

Can someone help me figure this out? I've spent a lot of time on it already and I'm spinning my wheels with no resolution.

I'm using Karma/Jasmine with AngularJS to run some unit tests (which use ngMock and not ngMockE2E). When I run unit tests, the images are not loading, and this is causing a bunch of WARN messages to appear in the console (which although not critical, it is undesirable as it may confuse future developers on the project).

I'm using PhantomJS to run my unit tests.

In my karma.conf.js file, I am loading the requested *.png files within the dependencies like so:

files: [
  //...
  {pattern: 'src/**/*.png', included: false},
  //...
],

And I've tried a couple variations of proxies: {...} but none of them seem to work. My current attempt is:

proxies: {
  '/components/images/': '/base/src/components/images/'
},

And the basePath is set to:

basePath: '../../',

Any ideas how to resolve the image locations, or is that not possible sans-ngMockE2E?

Thanks