title: How to redirect login page to another page in IFrame?
body: <p>after clicking link button, Modal popUp appears with Iframe which has a login page. Every thing is ok until this. But after write UserName and password i response redirect target page.  But Target page gives me server error: Login.aspx to Target.aspx page return me below error...   </p>
  
  <p><img src="https://i.stack.imgur.com/eKqHq.png" alt="enter image description here"></p>