Consultancy for Oracle database content on iPad

We require to view mp4 file from Oracle database on iPad 2. We are able to view the mp4 file on iPad 2, when called directly from our server with the following url [login to view URL] When the same mp4 is stored in database and called through url [login to view URL] on IPad 2 it says cannot download file. This same url on Windows desktop and on Safari browser can download and display the mp4 file. The procedure download_file is as follows: PROCEDURE download_file(p_content_id IN NUMBER) IS v_text_blob BLOB; v_mime_type VARCHAR2(128); BEGIN SELECT tb_text, MIME_TYPE INTO v_text_blob, v_mime_type FROM TEXT_BANK WHERE tb_id = p_content_id; owa_util.mime_header(v_mime_type, true); --htp.p('lesson_lob_length '||[login to view URL](v_text_blob)); owa_util.http_header_close; wpg_docload.download_file(v_text_blob); END;