internal static void RemoveAllXForwardedHeaders(TransformBuilderContext context, string prefix)
 {
     context.AddXForwardedFor(prefix + ForwardedTransformFactory.ForKey, ForwardedTransformActions.Remove);
     context.AddXForwardedPrefix(prefix + ForwardedTransformFactory.PrefixKey, ForwardedTransformActions.Remove);
     context.AddXForwardedHost(prefix + ForwardedTransformFactory.HostKey, ForwardedTransformActions.Remove);
     context.AddXForwardedProto(prefix + ForwardedTransformFactory.ProtoKey, ForwardedTransformActions.Remove);
 }