Development/HTTP Header 1 Prompt for download of a file To automatically have the browser prompt to download a file, the contentType needs to be set in the HTTP Header:\\ {code} response.setContentType(application/csv); {code} (csv used an an example here)\\ __Binary/other files__\\ {code} response.setContentType("application/octet-stream"); {code} May also want to set the length of the file (if known) {code} response.setContentLength((int) f.length()); {code} Setting the filename for a Download Setting the filename of a file that is downloaded is achieved by setting the following in the HTTP Header:\\ {code} response.setHeader("Content-Disposition", "attachment; filename=TheFileName.txt"); {code} __Internet Explorer download issues__ Internet Explorer has a bug when downloading files through SSL. In this case for IE/Windows set additional: {code} response.setHeader("Cache-Control", "must-revalidate"); response.setHeader("Pragma", "public"); {code} 2006-01-03 12:35:26.0 2005-08-23 12:27:55.0