Just out of the top of my head: what about setting the header entry to an empty string value ("")? Edward Liu wrote: > I am trying to connect to a web service with an HTTP request, and I am > working around with the HTTP headers. I am able to create my own custom > headers for the HTTP request, and everything is fine when the header has > a non-nil value associated to it. However, when I try to set a nil > value to a custom HTTP header, I do not the header included in the HTTP > message. Is there a way to include a header with a nil value in the > HTTP message? Thanks!