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<script>
if (window.testRunner) {
  testRunner.dumpAsText();
  testRunner.dumpChildFramesAsText();
}
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  <p>
    Loads an iframe (a) which loads an iframe (b) which in turns tries to load an external script. The iframe (a) has a content security policy disabling external scripts. As this policy does not apply to (b), the script should be executed.
  </p>
  <iframe src="http://127.0.0.1:8000/security/contentSecurityPolicy/resources/echo-iframe.pl?q=http://127.0.0.1:8000/security/contentSecurityPolicy/resources/script-src.html&csp=allow%20*%3B%20script-src%20'none'"></iframe>
</body>
</html>
