This worked fine for iOS 10.2 and below, but after upgrading to 10.3, when the simulator attempts to connect over HTTPS to the development server running on localhost, the X
I also had same problem , You have to implement didRecieveChallenge delegate method to handle SSl error
Add below ;one of code in didReceiveChallenge delegate method of URLSession delegate methods or URLConnnection deleagte method.
- (void)URLSession :( NSURLSession *)session didReceiveChallenge :( NSURLAuthenticationChallenge *)challenge completionHandler :( void (^)(NSURLSessionAuthChallengeDisposition disposition, NSURLCredential * _Nullable credential))completionHandler { NSURLSessionAuthChallengeDisposition lDisposition = NSURLSessionAuthChallengeUseCredential;
NSURLCredential *credential = [[NSURLCredential alloc] init];
if (challenge.protectionSpace.authenticationMethod == NSURLAuthenticationMethodServerTrust) {
credential = [NSURLCredential credentialForTrust: challenge.protectionSpace.serverTrust];
lDisposition = NSURLSessionAuthChallengeUseCredential;
}
completionHandler(lDisposition, credential);}