title: Manifest v3 Resources must be listed in the web_accessible_resources
body: <p>I get this error even if &quot;image/copy.svg&quot; is properly declared in the manifest.json</p>
  <blockquote>
  <p>Denying load of
  chrome-extension://pofbdjeepddggbelfghnndllidnalpde/images/copy.svg.
  Resources must be listed in the web_accessible_resources manifest key
  in order to be loaded by pages outside the extension.</p>
  </blockquote>
  <p>If I go to chrome-extension://pofbdjeepddggbelfghnndllidnalpde/images/copy.svg I can successfully see the loaded image.</p>
  <p><strong>css/style.css</strong></p>
  <pre><code>.copy-icon{
      content:url('chrome-extension://__MSG_@@extension_id__/images/copy.svg');
      height: 16px;
      width: auto;
      margin-right: 0px;
  }
  </code></pre>
  <p><strong>html</strong></p>
  <pre><code>&lt;button alt=&quot;Copy to clipboard&quot; class=&quot;clipboard&quot; data-clipboard-text=&quot;TEXT&quot;&gt;
    &lt;img class=&quot;copy-icon&quot;&gt;&lt;/img&gt;
  &lt;/button&gt; 
  </code></pre>
  <p>manifest.json</p>
  <pre><code>    &quot;manifest_version&quot;: 3,
      &quot;content_scripts&quot;: [
      {
        &quot;matches&quot;: [&quot;https://*.example.com/*&quot;], 
        &quot;js&quot;: [&quot;contents/results.js&quot;],
        &quot;css&quot;: [&quot;css/style.css&quot;],
        &quot;run_at&quot;: &quot;document_end&quot;
      }
    ],
      &quot;web_accessible_resources&quot;: [{
          &quot;resources&quot;: [&quot;images/copy.svg&quot;],
          &quot;matches&quot;: [],
         &quot;extension_ids&quot;: []
        }], 
  </code></pre>