Fix the issue #329

YoutubeExtractor/YoutubeExtractor/DownloadUrlResolver.cs

@@ -230,7 +230,7 @@ private static string GetDecipheredSignature(string htmlPlayerVersion, string si
 
         private static string GetHtml5PlayerVersion(JObject json)
         {
-            var regex = new Regex(@"player-(.+?).js");
+            var regex = new Regex(@"player_(.+?).js");
 
             string js = json["assets"]["js"].ToString();
 
@@ -331,4 +331,4 @@ private class ExtractionInfo
             public Uri Uri { get; set; }
         }
     }
-}
+}