meta-refresh-vs-open.html | Explore in Territory

<html>
<head>
<script>
if (window.testRunner) {
    testRunner.dumpAsText();
    testRunner.waitUntilDone();
}
</script>
<meta http-equiv="refresh" content="0;url=data:text/plain,You should not have been redirected here.">
</head>
<body>
<iframe id="ifrm" src="about:blank"></iframe>
<script>
    document.body.onload = function() {
        if (window.testRunner)
            document.write('<p>FAIL: onload</p>');
        else
            alert('FAIL: onload');
    }

    // Having a subframe open should prevent refresh.
    document.getElementById("ifrm").contentDocument.open();

    setTimeout(function () {
        // Test succeeded, now remove traps and return to a state that won't confuse our test runner.
        document.body.onload = function() {};
        document.getElementById("ifrm").contentDocument.close();
        if (window.stop)
            stop();
        if (window.testRunner)
            testRunner.notifyDone();
      }, 500);
</script>
<p>SUCCESS - shouldn't refresh or invoke onload.</p>
</body>
</html>

chromium/third_party/blink/web_tests/fast/loader/meta-refresh-vs-open.html