construct-in-detached-frame.html | Explore in Territory

<!DOCTYPE html>
<script>
var parentWindow = parent;
var webSocketClass = WebSocket;

parentWindow.detachIframe();
try {
new webSocketClass('ws://127.0.0.1/');
} catch (e) {
parentWindow.console.log(e.message);
}
parentWindow.done();
</script>

chromium/third_party/blink/web_tests/http/tests/websocket/resources/construct-in-detached-frame.html