Update back.html

back.html

@@ -38,7 +38,7 @@ height: 100%;
     
  <div id="Container1"
      style="padding-bottom:56.25%; position:relative; display:block; width: 100%">
-     <iframe id="myIframe" width="100%" height="100%" frameborder="0" allowfullscreen="" style="position:absolute; top:0; left: 0"></iframe>
+     <iframe id="myIframe" width="100%" height="100%" frameborder="0" allowfullscreen="" webkitallowfullscreen="true" oallowfullscreen="true" style="position:absolute; top:0; left: 0"></iframe>
 </div>  
 
 <!div class="embed-container">