note 38844 deleted from function.header by kennyt

Note Submitter: php.net@brianmaddy.com ---- I received the following error in Internet Explorer when trying to send a powerpoint file: ----------------------- Internet Explorer cannot download <filename> from <domain> Internet Explorer was not able to open this Internet site. The requested site is either unavailable or cannot be found. Please try again later. [OK] ----------------------- I was NOT using SSL, so it is /not/ the situation described at the following URL: http://support.microsoft.com/support/kb/articles/q316/4/31.asp Solution: Set the session.cache_limiter to an empty string and output the headers it puts out manually. Exclude part of the 'Cache-Control:' header. This must be done before session_start() is called. <? ini_set('session.cache_limiter', ''); // the following 3 lines are what would have been sent if session.cache_limiter was 'nocache' header('Expires: Thu, 19 Nov 1981 08:52:00 GMT'); //header('Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0'); header('Cache-Control: must-revalidate, post-check=0, pre-check=0'); header('Pragma: no-cache'); session_start(); ?> Also, I found it very useful to install and use the LiveHTTPHeaders plugin for Mozilla: http://livehttpheaders.mozdev.org/ Hope I could help someone! Brian