<!doctype html>
<title>window.reportError() doesn't crash when window is detached</title>
<link rel="help" href="https://crbug.com/1445375">
<body>
<script>
let i = document.createElement("iframe");
document.body.appendChild(i);
let i_win = i.contentWindow;
i.remove();
i_win.reportError("an error");
</script>
