title: Including a URL with query string in an XML document
body: <p>So I have this XML doc:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt;
  &lt;Root&gt;
      &lt;Item&gt;
          &lt;URL&gt;http://www.mysite.com/page?id=1&lt;/URL&gt;
      &lt;/Item&gt;
  &lt;/Root&gt;
  </code></pre>
  
  <p>When I try and view the document, I get an error saying:</p>
  
  <blockquote>
    <p><strong>XML Parsing Error: not well-formed</strong></p>
  </blockquote>
  
  <p>at the <code>=</code> sign in the query string. I tried changing the <code>=</code> sign to <code>%3D</code>, but I get the same error at <code>%</code></p>
  
  <p>What am I supposed to do here?</p>