ヒントを見つけた時:
NSURLSession/NSURLConnection HTTP load failed (kCFStreamErrorDomainSSL, -9824)
Error : Error Domain=NSURLErrorDomain Code=-1200 "An SSL error has occurred and
a secure connection to the server cannot be made."
info.plistに追加:
NSAppTransportSecurity
NSAllowsArbitraryLoads
図のように: