<script>

function finishTest()
{
    document.getElementById('input').setAttribute('placeholder','Placeholder');
    if (window.testRunner)
        testRunner.notifyDone();
}

function test()
{
    if (window.testRunner)
        testRunner.waitUntilDone();
    setTimeout(finishTest, 0);
}

</script>
<body onload="test()">
<p>If you can see the word "Placeholder" in the text field, then all is well.</p>
<p><input type="text" id="input"></p>
</body>