title: what version of IE support security="restricted" for iframes
body: <p>what version of IE support <code>security="restricted"</code> for iframes </p>
  
  <p>and can i use both <code>security="restricted"</code> along with  <code>sandbox="allow-scripts"</code>. If so which one is taken into account.</p>
  
  <p>Does any other browser otherthan IE support the first one(security). </p>