<!-- Any copyright is dedicated to the Public Domain.
- http://creativecommons.org/publicdomain/zero/1.0/ -->
<!DOCTYPE HTML>
<html>
<head>
<title>Test for bug 1773732</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<script>

SimpleTest.waitForExplicitFinish();

function go() {
  let frame = document.createElement("iframe");
  frame.onload = () => {
    let win = frame.contentWindow;
    is(SpecialPowers.Cu.isRemoteProxy(win), SpecialPowers.useRemoteSubframes,
       "win is a remote proxy if Fission is enabled");
    let o = {};
    Object.setPrototypeOf(o, win);
    is(Object.getPrototypeOf(o), win, "should have expected proto");
    SimpleTest.finish();
  };
  frame.src = "https://example.com";
  document.body.appendChild(frame);
};
go();

</script>
</body>
</html>
