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<!DOCTYPE html>
<meta charset="utf-8" />
<title>IFrame Fullscreen API success reporter</title>
<body></body>
<script>
window.addEventListener("message", async (e) => {
switch (e.data.action) {
case "report":
await sendReport();
break;
default:
parent.postMessage(
{
report: {
api: "fullscreen",
result: `Unknown action ${e.data.action}`,
frame: window.name,
},
},
"*"
);
}
});
async function sendReport() {
let didSucceed = true;
let error;
let errorMessage;
try {
await document.body.requestFullscreen();
} catch (e) {
didSucceed = false;
error = e.name;
errorMessage = e.message;
} finally {
const data = {
report: {
api: "fullscreen",
result: didSucceed,
frame: window.name,
error,
errorMessage,
},
};
parent.postMessage(data, "*");
}
}
</script>