iframe-postmessage-to-parent-parent.sub.html (380B)
1 <!DOCTYPE HTML> 2 <html> 3 <head> 4 <title>Resource file for test of Referer with location.replace</title> 5 </head> 6 <body> 7 <div></div> 8 <script> 9 const referer = "{{header_or_default(referer, missing)}}" 10 window.parent.parent.postMessage(referer); 11 document.querySelector("div").textContent = `Referer header: ${referer}`; 12 </script> 13 </body> 14 </html>