NSURLErrorDomain Code=-1001 error when a http post request is sent

Question

I am using the following code to post an image to my server.

@IBAction func postButtonPressed(sender: UIButton) {
    let task = NSURLSession.sharedSession(         


        

Answer 1

I fixed using headers with application/json and sending on the request:

let headers: HTTPHeaders = [
        .accept("application/json")
]
AF.request(url, method: .post, parameters: score, encoder: JSONParameterEncoder.default, headers: headers)