Fix thumbnail error

Tesses.YouTubeDownloader/src/YouTubeDownloader.tcross

@@ -1093,8 +1093,26 @@ class TYTD.Downloader {
 				return path;
 			}
 			else {
+				try {
 				var url = $"https://s.ytimg.com/vi/{id}/{res}.jpg";
-				Net.Http.DownloadToFile(url,this.Storage, path);
+				const resp = Net.Http.MakeRequest(url,{FollowRedirects=true});
+				if(resp.StatusCode >= 200 && resp.StatusCode <= 299)
+				{
+					const strm=this.Storage.OpenFile(path,"wb");
+					resp.CopyToStream(strm);
+					strm.Close();
+				}
+				else {
+
+					const bytes = FS.ReadAllBytes(this.Storage,"/Streams/nullthumb.jpg");
+					FS.WriteAllBytes(this.Storage, path, bytes);
+				}
+				resp.Close(); //for other implementations
+
+				}catch(ex) {
+					return /"Streams"/"nullthumb.jpg";
+				}
+
 
 				return path;
 			}