ilann/if.html

## if.html
<!doctype html>
  <html>
    <head>
      <script>
         window.SAR = {
           alive : true
         };
      </script>
    </head>
  <body>iframe </body>
  </html>

## index.html
<!doctype html>
<html>
  <head>
  </head>
  <body>
    <h2>Parent</h2>
    <div>
        <button id="btn_killer">kill iframe</button>
        <button id="btn_test">test!</button>
      </div>
    <iframe id="iframe1" src="if.html" ></iframe>
  <script>
        var iframe = document.getElementById("iframe1");
        var parent_ref_keeper = "NOT SET YET!" ;

        iframe.onload = function(){
          console.log ("iframe loaded");
          parent_ref_keeper = iframe.contentWindow.SAR;
          console.log ("parent_ref_keeper set to = " , parent_ref_keeper);
        };

        window.onload = function (){

          var btn_killer = document.getElementById("btn_killer").addEventListener("click" , function(){
            document.body.removeChild(iframe);
          });

          var btn_test = document.getElementById("btn_test").addEventListener("click" , function(){
            console.log ("btn_test" , parent_ref_keeper);
          });

        }

  </script>
  </body>
</html>
	<!doctype html>
	<html>
	<head>
	<script>
	window.SAR = {
	alive : true
	};
	</script>
	</head>
	<body>iframe </body>
	</html>