sandboxed-iframe-script-dynamic.html

<html>
<head>
<script>

    frame = window.top.document.getElementById('frame');

    // Setting the sandbox flag at runtime should not change whether scripts
    // are allowed in this document.

    frame.sandbox = 'allow-same-origin';   // NO allow-scripts

    ++window.top.allowedExecuted;

    // This means that new scripts (such as the onload handler below) should
    // continue to execute, even though the frame now has a sandbox attribute.

    function onload_hook()
    {
        ++window.top.allowedExecuted;
    };

</script>
</head>

<body onload='onload_hook();'></body>
</html>

chromium/third_party/blink/web_tests/fast/frames/resources/sandboxed-iframe-script-dynamic.html