cross-origin-ancestor-activeelement-after-child-lose-focus-helper.html (205B)
1 <html> 2 <body> 3 <input /> 4 <script> 5 window.onload = function() { 6 document.querySelector("input").focus(); 7 window.parent.parent.postMessage("ready", '*'); 8 } 9 </script> 10 </body> 11 </html>