| <!DOCTYPE html> | |
| <body> | |
| <script> | |
| window.addEventListener("message", function (event) { | |
| window.webkit.messageHandlers.testSystemPreview.postMessage({ message: "triggered", action: event.data }); | |
| }); | |
| window.addEventListener("load", function () { | |
| let pageID = internals.pageIdentifier(document); | |
| let frameID = internals.frameIdentifier(document); | |
| let msg = { message: "loaded", pageID, frameID }; | |
| window.webkit.messageHandlers.testSystemPreview.postMessage(msg); | |
| }); | |
| </script> | |