title: ASP.NET TextBox TextMode set to Date not working in IE 11
body: <pre><code>&lt;asp:TextBox ID="txtDate" runat="server" TextMode="Date" /&gt;
  </code></pre>
  
  <p>It works in Chrome, but not in Firefox or IE 11.  Googling around isn't yielding a lot of helpful answers.  As far as I know, IE 11 is HTML5 compliant.</p>