test_bug1738418.html

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<!DOCTYPE HTML>

<html>

<head>

  <title>Bug 1738418: CSP sandbox for embed/object frames</title>

  <script src="/tests/SimpleTest/SimpleTest.js"></script>

  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />

</head>

<body>

<iframe id="testframe"></iframe>

<script class="testbody" type="text/javascript">

SimpleTest.waitForExplicitFinish();

var elements = new Set(["iframe", "embed", "object"]);

window.addEventListener("message", event => {

  is(event.data.domain, "", `document in <${event.data.element}> should have sandboxed origin`);

  elements.delete(event.data.element);

  if (elements.size == 0) {

    SimpleTest.finish();

});

document.getElementById("testframe").src = "file_bug1738418_parent.html";

</script>

</body>

</html>