Set HTTP header value from struts action class

[Sheelu sheelu]

Hi

I'm trying to set the HTTP http header value from a struts action class. This is the code:
public ActionForward execute(ActionMapping aMapping, ActionForm aForm,
HttpServletRequest aRequest, HttpServletResponse aResponse)
throws Exception{
String userName = "test";
aResponse.addHeader("X-SCP-USERNAME", userName);
aResponse.setHeader("X-SCP-USERNAME", userName);
}

I verified this value being set by putting a breakpoint in the code, and I see this value is being set.
But, when I tried to access the value from another action class, I dont find this value being set. I used HttpFox to read the response from http header and I dont find the value there as well.
My target is to set a value in the http header so that a iframe in the page can read that value.

Thanks in advance,
Sheelu