Just out of curiosity, does all these calls pass through drupal's menu system? Anything that doesn't will naturally not contain any of drupal's context variables. On 10/9/08, Ron Parker <sysop@scbbs.com> wrote:

...

I discovered that in Internet Explorer, the printer-friendly page comes up with the correct logo in the browser. But, when "Print" (or "Print Preview") is clicked, the browser makes another httpd call to the site. This call contains NO context info: No user, group, $_SESSION, referrer info, nothing. Therefore, my program cannot select the correct logo.

I seem to have resolved my problems by adding this to my code in a couple of places:

header('Expires: Mon, 26 Jul 1997 05:00:00 GMT'); header('Cache-Control: no-store, no-cache, must-revalidate'); header('Cache-Control: post-check=0, pre-check=0', FALSE); header('Pragma: no-cache');

cache_clear_all();

This doesn't help the problem with the $user context disappearing (I solved that by creating a variable using the user's ip address and storing the info I need there - very crude, but works), but by forcing the browser not to cache the image I am dynamically creating.

Thanks for the suggestion.

-ron

-- Ashraf Amayreh http://aamayreh.org