title: python selenium issue with pop up
body: <p>In our web application, when we click on submit file button , it open up the modal dialog. as attached in the picture below. this is not window based pop up. Looks like browser based modal even not pop up or alert.
  I am using selenium and python for automation.
  I observed that</p>
  <ol>
  <li>its no frame --tried switching to frame</li>
  <li>its a no alert -tried switching to alert</li>
  <li>its not an new tab or new window- tried to switch to window</li>
  <li>tried using switch to active element- tried switch to active element</li>
  <li>Tried by direct providing xpath- here I make sure Xpath is correct in DOM</li>
  </ol>
  <p>I tried this code as well -</p>
  <p>I have to click on Upload Data File button on the modal. I am not able to click it.</p>