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<html>
<head>
<meta charset="utf-8" />
<title>GetUserMedia from cross-origin iframe: the iframe document</title>
</head>
<body>
<script>
"use strict";
let stream;
window.addEventListener(
"message",
async ({ data: { name, gen, constraints } }) => {
if (name == "start") {
try {
stream = await navigator.mediaDevices.getUserMedia(constraints);
Send({ gen, result: "ok" });
} catch (e) {
Send({ gen, result: `${e}` });
}
} else if (name == "stop") {
const result = !!stream;
if (stream) {
for (const t of stream.getTracks()) {
t.stop();
}
stream = undefined;
}
Send({ gen, result });
}
}
);
function Send(obj) {
window.parent.postMessage(obj, "http://localhost:4245");
}
</script>
</body>
</html>
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