title: Webview2.getElementsByTagName fails
body: <p>I am running the following code against a page with two input fields (among other fields):</p>
  <pre><code>private const string strScriptemail = @&quot;alert('First');
  var INP =document.getElementsByTagName('*').length; alert('Second'); 
  if(INP === null){alert('Third')};alert(INP);&quot;;
  script = strScriptemail;
  webView.CoreWebView2.ExecuteScriptAsync(script);
  </code></pre>
  <p>On most pages this succeeds fine.  On one particular page I never get to the alert('Second').  I assume that this means that some error occurred in the getElementsByTagName. The same thing happens with attempts to get page elements using other commands.  The page looks normal when I use developer options.</p>
  <p>Any suggestions?</p>