Events for file deletion are not working with plupload

For clarity, create file named result.txt in root directory of your forum.

Write next code in event/listener.php of your extension:

            'core.delete_attachments_from_filesystem_after'            => 'delete_file',

    public function delete_file($event)

    {

        $new_file = 'result.txt';

        $content = $event['space_removed'];

        file_put_contents($new_file, $content);

    }

You will see the number written as a result after deleting the file along with the message, but you will not see anything after deleting via plupload.

Same for other events in phpbb/attachment/delete.php