iframe.html (338B)
1 <!DOCTYPE html> 2 <html> 3 <head> 4 <meta charset="utf-8"> 5 </head> 6 <body> 7 <h1>iframe</h1> 8 <script> 9 self.addEventListener('securitypolicyviolation', e => { 10 window.parent.postMessage({ violatedDirective: e.violatedDirective, 11 originalPolicy: e.originalPolicy, blockedURI: e.blockedURI }); 12 }); 13 </script> 14 </body> 15 </html>