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Test Info: Warnings

<!DOCTYPE HTML>
<html>
<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>