title: Reuse the same popup window
body: <p>I am looking to use the same pop up window each time the pop up is called. Actually I need to do a form submit into a pop-up window, it is working fine, but in Chrome iOS each time I submit the form it opens a new tab/window instead use the previous one.</p>
  
  <p>To resume what I want I did this jsfiddle:  Each time that you click the submit button you will see a new pop-up window is opened instead use the previous opened window. </p>
  
  <p><a href="http://jsfiddle.net/s5ph2rzy/" rel="nofollow">http://jsfiddle.net/s5ph2rzy/</a></p>
  
  <pre><code>&lt;input type="submit" onclick="mainVar.setFormSubmit();" value="Submit" /&gt;
  var mainVar = {
      setFormSubmit: function() {
         window.open('', 'formtarget','width=650, height=800');
      }
  }
  </code></pre>
  
  <p>I have found out info saying to use the same popup name, but it does not work. Also I found out this page where it explains how to do this <a href="http://www.codestore.net/store.nsf/unid/DOMM-4PYJ3S?OpenDocument" rel="nofollow">http://www.codestore.net/store.nsf/unid/DOMM-4PYJ3S?OpenDocument</a> but it does not work in my jsfiddle neither. Can you help me to uptate my jsfiddle with a workable code?</p>