title: Adding a "processing" page between requests
body: <ul>
  <li>.NET 4.51 WebForms</li>
  </ul>
  
  <p>I would like to introduce a "please wait" page between page requests. So if I have a user on Page1.aspx and they click a button then show this processing page until a response comes back from the server which could be Page1.aspx again or say a redirect to Page2.aspx.</p>
  
  <p>Any suggestions?</p>