Yesterday i've worked about a day to find out why my application authentication is not working well on IE8. it was working fine on all other browser but IE8.
IE started to implement P3P privacy policy from version 7. IE8 default privacy setting need P3P header. after lots of investigation found that some of the responses for css didn't have P3P header,
then adding following line to apache config solved issue:
"P3P" "policyref="/w3c/p3p.xml", CP="NON CURa TIA"
more:
http://www.google.com.my/search?hl=en&client=firefox-a&rls=com.ubuntu%3Aen-US%3Aunofficial&hs=vvl&q=P3P+header&btnG=Search&meta=
