[Swift] URLSession https 인증서 신뢰

func urlSession(_ session: URLSession, didReceive challenge: URLAuthenticationChallenge, completionHandler: @escaping (URLSession.AuthChallengeDisposition, URLCredential?) -> Void) {

 	let urlCredential = URLCredential(trust: challenge.protectionSpace.serverTrust!)
    completionHandler(.useCredential, urlCredential)
 }