SDWebImage 載入https報錯 無法載入問題

https://stackoverflow.com/questions/41854908/nsurlsession-nsurlconnection-http-load-failed-kcfstreamerrordomainssl-9802-in

1.SDWebImageDownloaderOperation.m 中

• (void)URLSession:(NSURLSession *)session task:(NSURLSessionTask *)task didReceiveChallenge:(NSURLAuthenticationChallenge *)challenge completionHandler:(void (^)(NSURLSessionAuthChallengeDisposition disposition, NSURLCredential *credential))completionHandler {

  NSURLSessionAuthChallengeDisposition disposition = NSURLSessionAuthChallengePerformDefaultHandling; __block NSURLCredential *credential = nil;

  if ([challenge.protectionSpace.authenticationMethod isEqualToString:NSURLAuthenticationMethodServerTrust]) {

   if (!(self.options & SDWebImageDownloaderAllowInvalidSSLCertificates)) {
       //            disposition = NSURLSessionAuthChallengePerformDefaultHandling;
       disposition = NSURLSessionAuthChallengeUseCredential;
       credential = [NSURLCredential credentialForTrust:challenge.protectionSpace.serverTrust];
   } else {
       credential = [NSURLCredential credentialForTrust:challenge.protectionSpace.serverTrust];
       disposition = NSURLSessionAuthChallengeUseCredential;
       //        completionHandler(NSURLSessionAuthChallengeUseCredential,credential);
   }
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  } else {

   if ([challenge previousFailureCount] == 0) {
       if (self.credential) {
           credential = self.credential;
           disposition = NSURLSessionAuthChallengeUseCredential;
       } else {
           disposition = NSURLSessionAuthChallengeCancelAuthenticationChallenge;
       }
   } else {
       disposition = NSURLSessionAuthChallengeCancelAuthenticationChallenge;
   }
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  }

  if (completionHandler) { completionHandler(disposition, credential); } }