frame-with-insecure-iframe.html | Explore in Territory

<body onload="loaded()">
<script>
function loaded()
{
  if (window.opener)
    window.opener.postMessage('done', '*');
}
</script>
<iframe src="http://example.test:8080/security/mixedContent/resources/boring.html"></iframe>
</body>

chromium/third_party/blink/web_tests/http/tests/security/mixedContent/resources/frame-with-insecure-iframe.html