| <!doctype html> | |
| <script> | |
| function handler(event) { | |
| window.top.postMessage(event.sourceCapabilities.customProperty, "*"); | |
| } | |
| function runTest() { | |
| document.querySelector("button").click(); | |
| } | |
| window.onload = function () { | |
| setTimeout(runTest, 1000); | |
| window.top.postMessage("start", "*"); | |
| } | |
| </script> | |
| <button onclick="handler(event)"></button> |