title: Error while downloading 'http://java.sun.com/dtd/web-app_2_3.dtd'
body: <pre><code>&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&gt;
  &lt;!DOCTYPE web-app
      PUBLIC &quot;-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN&quot;
      &quot;http://java.sun.com/dtd/web-app_2_3.dtd&quot;&gt;
  
  &lt;web-app&gt;
  
  </code></pre>
  <p>this is my code in vscode, how to solve this error (Error while downloading 'http://java.sun.com/dtd/web-app_2_3.dtd')</p>