Actually we only want the RefreshCached flag for the 1st image (the HTTP Auth one)

Examples/SDWebImage Demo/MasterViewController.m

@@ -91,7 +91,8 @@
     cell.textLabel.text = [NSString stringWithFormat:@"Image #%ld", (long)indexPath.row];
     cell.imageView.contentMode = UIViewContentModeScaleAspectFill;
     [cell.imageView sd_setImageWithURL:[NSURL URLWithString:[_objects objectAtIndex:indexPath.row]]
-                      placeholderImage:[UIImage imageNamed:@"placeholder"] options:SDWebImageRefreshCached];
+                      placeholderImage:[UIImage imageNamed:@"placeholder"] options:indexPath.row == 0 ? SDWebImageRefreshCached : 0];
+
     return cell;
 }