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<head>
  <title>Bug 1490977: Test Assertion if content privileged about: page has no CSP</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">

  // Test Setup: The test overrules the allowlist of about: pages that are allowed to load
  // without a CSP and makes sure to hit the assertion within AssertAboutPageHasCSP().

  SpecialPowers.setBoolPref("dom.security.skip_about_page_csp_allowlist_and_assert", true);

  SimpleTest.waitForExplicitFinish();
  SimpleTest.expectAssertions(0, 1);

  ok(true, "sanity: prefs flipped and test runs");
  let myFrame = document.getElementById("testframe");
  myFrame.src = "about:blank";
  // booom :-)

  SpecialPowers.setBoolPref("dom.security.skip_about_page_csp_allowlist_and_assert", false);
  SimpleTest.finish();
</script>
</pre>
</body>
</html>
