title: How is it possible that .coffee files are being included directly by karma even though I have preproccessors defined in my karma.conf?
body: <h1>Question</h1>
  
  <p>How is it possible that .coffee files are being included directly to my index.html (like this: <code>&lt;script type="text/javascript" src="/base/specs/Demo.coffee"&gt;&lt;/script&gt;</code>) by karma even though I have <code>preproccessors: {'**/*.coffee': 'coffee'}</code> defined in my <code>karma.conf.js</code>? It appears they are not being preprocessed. How can I make them be preprocessed?</p>
  
  <h1>Background</h1>
  
  <ul>
  <li><a href="https://gist.github.com/Wizek/8e926157f9593ddc6a4a/a8fb2cbbda002e08d48d418e5f775cd7e2156e2f" rel="nofollow">my karma.conf.js</a>
  <ul>
  <li>Note, that <code>basePath: ''</code></li>
  <li>Also, the different revisions of that Gist show some different variations I tried, none successful.</li>
  </ul></li>
  <li><p><code>karma start</code> outputs:</p>
  
  <pre><code>INFO [karma]: Karma v0.12.1 server started at http://localhost:9876/
  INFO [launcher]: Starting browser Chrome
  INFO [Chrome 33.0.1750 (Mac OS X 10.9.2)]: Connected on socket sdb2-kO0hAjpMPQhBJeJ   with id 81292980
  Chrome 33.0.1750 (Mac OS X 10.9.2) ERROR
    Uncaught SyntaxError: Unexpected token >
    at /path/to/repo/specs/Demo.coffee:1
  
  Chrome 33.0.1750 (Mac OS X 10.9.2) ERROR
    Uncaught SyntaxError: Unexpected string
    at /path/to/repo/specs/NgLodashSpec.coffee:1
  
  ...</code></pre></li>
  <li><p><code>karma.conf.js</code> is located at the root of my project folder.</p></li>
  <li>I run <code>karma start</code> at the root of my project folder.</li>
  <li><code>coffee --version</code>: CoffeeScript version 1.7.1</li>
  <li><code>karma --version</code>: Karma version: 0.12.1</li>
  <li><code>karma-cli</code>: 0.0.4</li>
  <li><code>karma-coffee-preprocessor</code>: 0.2.1</li>
  </ul>
  
  <p>There are a lot of things that might be relevant, if you miss something from the above list, tell me and I'll add it!</p>