<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=1307730
-->
<head>
  <title>Test for Bug 1307730</title>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1307730">Mozilla Bug 1307730</a>
<p id="display"></p>
<div id="content" style="display: none">
</div>
<pre id="test">
<script type="application/javascript">

const Cu = SpecialPowers.Cu;

function runTest() {
  var xhr = new XMLHttpRequest();
  xhr.open("GET", "https://example.com", false);
  try {
    xhr.send();
  } catch (e) {
    return e.name;
  }
  return 'XHR succeeded';
}

function evalInSandbox(sandbox, func) {
  return SpecialPowers.unwrap(Cu.evalInSandbox(`(${func.toString()})()`, sandbox));
}

let sandbox = Cu.Sandbox([window, "https://example.org"],
                         {wantGlobalProperties: ['XMLHttpRequest']});
is(evalInSandbox(sandbox, runTest), 'NetworkError',
   "Shouldn't be able to make a CORS request with an expanded principal");

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