Issue #3447189 by dpacassi: Download link not working

Closes #3447189

src/Controller/EntityExportCsvDownload.php

@@ -139,7 +139,7 @@ class EntityExportCsvDownload implements ContainerInjectionInterface {
       'Content-Type'  => 'text/csv',
     );
     return (new BinaryFileResponse($file_uri, 200, $headers))
-      ->deleteFileAfterSend(TRUE)
+      ->deleteFileAfterSend(FALSE)
       ->setContentDisposition('attachment', basename($file_uri));
   }