Deliver P3P http headers for IE-8

Question

we built a webapp. On IE we need to allow third party cookies. We are using Java Server Faces. Anyway we are looking for the best way to deliver the P3P-Header? We thought about Apache configuration files. Is it possible to detect InternetExplorer on this level or is it better to check for browser in the application?

Thanks in advance.

Answer 1

Since it should be a static P3P policy, the elegant way would be to put it in the Apache config with

BrowserMatch . . 
Header . . .  env=

Answer 2

Okay, this works for me (at the end of Apache http.conf, set-header-module is enabled):

BrowserMatch MSIE IS_MSIE
Header add P3P "CP=\"NOI DSP COR CURa ADMa DEVa OUR IND OTC\"" env=IS_MSIE