title: An invalid form control with name='' is not focusable
body: <p>In Google Chrome some customers are not able to proceed to my payment page.
  When trying to submit a form I get this error:</p>
  <blockquote>
  <p>An invalid form control with name='' is not focusable.</p>
  </blockquote>
  <p>This is from the JavaScript console.</p>
  <p>I read that the problem could be due to hidden fields having the required attribute.
  Now the problem is that we are using .net webforms required field validators, and not the html5 required attribute.</p>
  <p>It seems random who gets this error.
  Is there anyone who knows a solution for this?</p>