title: Chrome extension inner file blocked in incognito mode
body: <p>I'm developing a chrome extension that has the following files for example:</p>
  
  <pre><code>test.html
  manifest.json
  </code></pre>
  
  <p>Let's say the extension has the id <code>aaaaaaaaaaaaa</code>.</p>
  
  <p>If I navigate to the following URL
  <code>chrome-extension://aaaaaaaaaaaaa/test.html</code></p>
  
  <p>I can successfully view the <code>popup.html</code> file loaded.</p>
  
  <p>However when I try to access the same URL in incognito mode I get a Chrome error with the message:</p>
  
  <pre><code>aaaaaaaaaaaaa is blocked
  
  Requests to the server have been blocked by an extension.
  Try disabling your extensions.
  ERR_BLOCKED_BY_CLIENT
  </code></pre>
  
  <p>I have enabled the <code>Allow in incognito</code> checkbox in the extension's settings. Is this the browser's intended behaviour? Is there a way to make the file load in incognito mode?</p>
  
  <p>BTW, my <code>manifest.json</code> file has </p>
  
  <pre><code>...
  "web_accessible_resources": [
      "test.html"
  ],
  ...
  </code></pre>