anchor.diff:                  }
               delete = fun s -> 
                   async {
  -                    let! res = Http.AsyncRequest(url + s, httpMethod = "DELETE")
  +                    let! res = Http.AsyncRequest(url + s, httpMethod = "DELETE", silentHttpErrors = true)
                       return 
                           match res.StatusCode with 
                           | 200 | 404 -> true
  
positive.code: 
          let putReq url model = 
              async {
                  let! res = Http.AsyncRequest (url, headers = ["content-type", "application/json"], body = TextRequest(model), httpMethod = "PUT")
                  return 
                      match res.StatusCode with
                      | 201 | 202 -> 
  
negative.code: 
          let getReq url = 
              async {
                  let! res = Http.AsyncRequest (url, silentHttpErrors = true)
  
                  return 
                      match res.StatusCode with 
  