| <!doctype html> | |
| <meta charset=utf-8> | |
| <body> | |
| <script> | |
| // Step 5 | |
| let site3Window; | |
| const listener = e => { | |
| if (e.data === "Site 2 Frame B") { | |
| site3Window.close(); | |
| window.top.postMessage("Site 2 Frame A", "*"); | |
| } | |
| }; | |
| // Step 2 | |
| window.addEventListener("message", listener); | |
| site3Window = window.open("https://{{host}}:{{ports[https][0]}}/postMessage/resources/third-party-to-third-party-window.sub.https.html", "", "noopener=false"); | |
| </script> | |
| </body> |