URLSession
open override fun URLSession(session: NSURLSession, dataTask: NSURLSessionDataTask, didReceiveData: NSData)
open override fun URLSession(session: NSURLSession, task: NSURLSessionTask, didCompleteWithError: NSError?)
open override fun URLSession(session: NSURLSession, webSocketTask: NSURLSessionWebSocketTask, didOpenWithProtocol: String?)
open override fun URLSession( session: NSURLSession, webSocketTask: NSURLSessionWebSocketTask, didCloseWithCode: NSURLSessionWebSocketCloseCode, reason: NSData?)
open override fun URLSession( session: NSURLSession, task: NSURLSessionTask, willPerformHTTPRedirection: NSHTTPURLResponse, newRequest: NSURLRequest, completionHandler: (NSURLRequest?) -> Unit)
Disable embedded redirects.
open override fun URLSession( session: NSURLSession, task: NSURLSessionTask, didReceiveChallenge: NSURLAuthenticationChallenge, completionHandler: (NSURLSessionAuthChallengeDisposition, NSURLCredential?) -> Unit)
Handle challenge.