note 76758 deleted from function.header by crell

Note Submitter: Kal ---- I spent a long time trying to determine why Internet Explorer 7 wasn't prompting the user to save a download based on the filename specified on a "'Content-Disposition: attachment; filename=..." header line. I eventually determined that my Apache installation was adding an additional header: "Vary: Host", which was throwing IE - as per http://support.microsoft.com/kb/824847 I found manually setting the Vary header from within PHP as follows header('Vary: User-Agent'); allowed IE to behave as intended. Hope this saves someone else some time, - Kal