anchor.diff:                          member this.UserSession = session :> _ 
                           member this.Environment = upcast Map.ofList [(RpcUtil.HttpContextKey, ctx :> obj)] }
                   let! response =
  -                    RpcUtil.server.HandleRequest({ Headers = getHeader; Body = body }, ctx)
  +                    server.HandleRequest({ Headers = getHeader; Body = body }, ctx)
                   resp.ContentType <- response.ContentType
                   resp.Write response.Content
               return resp.End()
  
positive.code:             Error (403, "Forbidden")
          | _ ->
              Ok headers
  
      let work (ctx: HttpContextBase) =
          let req = ctx.Request
  
negative.code:             }
  
  module private RpcUtil =
      let [<Literal>] HttpContextKey = "HttpContext"
      let [<Literal>] CsrfTokenKey = "csrftoken"
      let [<Literal>] CsrfTokenHeader = "x-" + CsrfTokenKey
  