c# - How to send lower-case Keep-Alive header through HttpWebRequest

Question

I'm writing a bot, which should emulate firefox as closely as possible. By examining the headers that it is sending, I've found one minor difference, that I do not know how to get rid off:

Firefox uses following keep-alive header:

Connection: keep-alive

While c# always sends out:

Connection: Keep-Alive

I know that it probably does not matter, but I'd still love to know if there is any way/hack to modify that header to be all lower case.

Any ideas how to do this?

Answer 1

In .net 4.0 this works:

request.Headers.GetType().InvokeMember(
    "ChangeInternal",
    BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.InvokeMethod,
    Type.DefaultBinder, 
    request.Headers, 
    new object[] { "Connection", "keep-alive" }
);

Just be sure you don't actually set the KeepAlive property on the request