title: Manifest.json not being downloaded?
body: <p>I'm following <a href="https://developers.google.com/web/updates/2014/11/Support-for-installable-web-apps-with-webapp-manifest-in-chrome-38-for-Android" rel="nofollow noreferrer">Google's progressive web-app recommendations</a>.  I have a webpage that links to a manifest file:</p>
  
  <pre><code>&lt;!DOCTYPE html&gt;
  &lt;html lang="en"&gt;
  &lt;head&gt;
    &lt;title&gt;my site&lt;/title&gt;
    &lt;link rel="manifest" href="manifest.json"&gt;
  </code></pre>
  
  <p>Unfortunately it doesn't look like the manifest is being downloaded.  When I view the network tab in Chrome, I see no evidence that it's been downloaded, and the Manifest tab shows nothing.</p>
  
  <p>I have confirmed <code>manifest.json</code> is accessible, when I hit <code>https://example.com/manifest.json</code> it comes up.</p>
  
  <p>I've tried various paths including "/manifest.json".</p>
  
  <p>Any ideas?</p>