title: Chrome says “Resource interpreted as script but transferred with MIME type text/plain.”, without server
body: <p>This problem even arises, when there is no server access whatsoever.
  index.html is just accessing some locally stored JavaScript file:</p>
  
  <pre><code>&lt;!DOCTYPE html&gt;
  &lt;html&gt;
  
  &lt;head&gt;
      &lt;meta charset="utf-8"&gt;
      &lt;script src="timeline.js"&gt;&lt;/script&gt;
  &lt;/head&gt;
  
  &lt;body&gt;
     &lt;p&gt;The Body&lt;/p&gt;
  &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>
  
  <p>When displayed in the browser, Chrome says:</p>
  
  <pre><code>Resource interpreted as Script but transferred with MIME type text/plain:  
  file:///D:/Workspace/timeline/examples/engel-timeline/timelineReusable.v0.0/timeline.js". 
  </code></pre>
  
  <p>How can I suppress this message? (Adding a 'content-type' doesn't help!)</p>