sandbox-navigation-timing-iframe.tentative.html (340B)
1 <!DOCTYPE html> 2 <meta charset="utf-8"> 3 <script> 4 let result; 5 try { 6 parent.document.getElementsByClassName('script'); 7 result = 'iframe not sandboxed' 8 } catch (e) { 9 result = 'iframe sandboxed(' + e.message + ')'; 10 } 11 window.onmessage = m => { 12 window.parent.postMessage({ 13 result: result 14 }, '*'); 15 }; 16 </script>