<!DOCTYPE html>
<html>
<body>
<script>
if (window.testRunner) {
    testRunner.dumpAsText();
    testRunner.dumpFrameLoadCallbacks();
}
</script>
<p>This test loads a secure iframe that loads an insecure style sheet.
We should upgrade the CSS request to HTTPS, and thereby avoid triggering
a mixed content callback.</p>
<iframe src="https://127.0.0.1:8443/security/contentSecurityPolicy/upgrade-insecure-requests/resources/frame-with-insecure-css.html"></iframe>
</body>
</html>