title: htmlunit : checkbox not getting checked
body: <p>I am using HtmlUnit for setting a checkbox in a page. Html code for checkbox is :</p>
  <pre><code>&lt;input id=&quot;Checkbox&quot; type=&quot;checkbox&quot;  name=&quot;Checkbox&quot; style=&quot;color:Black;&quot;/&gt;
  </code></pre>
  <p>My java code to set checkbox is :</p>
  <pre><code>HtmlCheckBoxInput checkBox = page.getHtmlElementById(&quot;Checkbox&quot;);
  checkBox.setChecked(true);
          
  FileUtils.writeStringToFile(new File(&quot;src/test/page-dumps/page-3.html&quot;),page.asXml(),&quot;UTF-8&quot;);
  </code></pre>
  <p>When I open <code>page-3.html</code> in my browse, ckeckbox is unchecked. Why is it not checked?</p>