Find URL for NSURLSession/NSURLConnection HTTP load failed (kCFStreamErrorDomainSSL, -9802) error

Question

I'm getting the infamous NSURLSession/NSURLConnection HTTP load failed (kCFStreamErrorDomainSSL, -9802) error on iOS 9. I don't want to add a global exception but for specific domains.

How do I know which URL causes this error?

Answer 1

When your NSURLConnection or NSURLSessionTask error handling delegate method is called, obtain the URL from the request object and print it with NSLog (or just put a debug breakpoint in that method).

Or set the CFNETWORK_DIAGNOSTICS environment variable to 1 (or 2 or 3) if your code isn't making the request directly (e.g. if a third-party library is doing it on your behalf).