<html>
<head>
<script type="text/javascript">
layoutTestController.dumpBackForwardList();
layoutTestController.dumpAsText();

function startIframeRequest() {
    var form = document.getElementById("myForm");
    var divElm = document.createElement("div");
    
    var iframe = document.createElement("iframe");
    iframe.name = "myFrame";
    iframe.id = "myFrame";
    divElm.appendChild(iframe);

    document.getElementsByTagName("body").item(0).appendChild(divElm);
    
    form.submit();
}
</script>
</head>
<body onload="startIframeRequest();">
<form id="myForm" target="myFrame" action="about:blank" method="get">
</form>
In this case, Safari and Firefox don't add a history item. 
</body>
</html>