| <!DOCTYPE html> |
| <html> |
| <head> |
| <title>Subframe for testing postMessage's task triggered by user activation</title> |
| <script src="postMessage-triggered-by-user-activation.js"></script> |
| </head> |
| <body> |
| <script> |
| appendButton("Window's postMessage", () => { |
| window.parent.postMessage("click1", "*"); |
| }); |
| |
| (() => { |
| const channel = new MessageChannel(); |
| window.parent.postMessage("channel2", "*", [channel.port2]); |
| appendButton("MessagePort's postMessage ", () => { |
| channel.port1.postMessage("click2"); |
| }); |
| })(); |
| |
| (() => { |
| const channel = new BroadcastChannel("channel3"); |
| appendButton("BroadcastChannel's postMessage", () => { |
| channel.postMessage("click3"); |
| }); |
| })(); |
| </script> |
| </body> |
| </html> |
