how to set "Date" header for http request

Question

I want to set the header for http request. The header name is "Date"

http_request.setRequestHeader("Date", headers.date);

But, when I see the request going out in firebug. I do not see the request header Date.

How do I set that?

Answer 1

From a XMLHttpRequest, there are a set of headers that cannot be set. Take a look at the spec for setRequestHeader(). Date is one of these headers.

Also, if you look at the WebKit source code, you can see this in implementation.

bool XMLHttpRequest::isAllowedHTTPHeader(const String& name)
{
    initializeXMLHttpRequestStaticData();
    return !staticData->m_forbiddenRequestHeaders.contains(name) 
        && !name.startsWith(staticData->m_proxyHeaderPrefix, false)
        && !name.startsWith(staticData->m_secHeaderPrefix, false);
}