We have a curious problem in our JSF application that did not appear in an equivalent Struts application: When we write contents to the response to be downloaded to the client (e.g., a comma-delimited .csv file), the browser pop-up that asks the user whether the user wants to "open" or "save" the file appears a second time after the user chooses "open." Thus, the user has to click on the "open" button twice to open the downloaded file.
A description of the problem (along with a workaround) is at http://www.rpmsoftware.com/wiki/index.php/Download_asks_twice The work-around given in the description requires the user to modify his/her settings, which is unacceptable for our application (especially since our application is the only one exhibiting this behavior). I'm trying to find out what is causing this behavior to try to see how to address it. Here's a summary of some test code used to do the file export: response.setContentType("application/excel"); response.setHeader("Content-Disposition", "multi-part attachment;filename=\"" + defaultFileName + "\";"); PrintStream os = new PrintStream(((ServletResponse) response).getOutputStream()); byte[] byte_1darray = {'1', '2', '3'}; os.write(byte_1darray, 0, 3); facesContext.getApplication().getStateManager().saveSerializedView(faces Context); facesContext.responseComplete(); Note that I also tried setting the content type to text.html, but the result was the same. Has anyone else experienced this problem? Can anyone explain what is going on? - Brendan
