iframeFetch.html (468B)
1 <!DOCTYPE html> 2 <html> 3 <head> 4 <script> 5 function processMessage(event) 6 { 7 fetch(event.data, { mode: "no-cors" }).then(() => { 8 parent.postMessage("ok", "*"); 9 }, () => { 10 parent.postMessage("ko", "*"); 11 }); 12 } 13 window.addEventListener("message", processMessage, false); 14 </script> 15 </head> 16 <body> 17 <h3>The iframe making a same origin fetch call.</h3> 18 </body> 19 </html>