Duplicate headers from the server have been received. The server response contained duplicate headers. This incidence is usually caused by the incorrect configuration of a website or a proxy. The website administrator or Proxy is the only person who can solve it. Error 349 (Net :: Err_Putse_headers_multiple_content_disposition): several different headers of content-disposition have been received. This is not allowed to offer protection against HTTP response division attacks. This is what I get ...
thank you very much !!