file_sessionstorage_across_coop.html (264B)
1 <!DOCTYPE html> 2 <html> 3 <body> 4 <script> 5 addEventListener("load", () => { 6 let bc = new BroadcastChannel("testChannel"); 7 bc.postMessage(sessionStorage.getItem("testItem")); 8 window.close(); 9 }); 10 </script> 11 </body> 12 </html>