apache :: Expiresヘッダーを送出する

.htaccess
ExpiresActive On
ExpiresByType text/css "access plus 3 days"
ExpiresByType application/x-javascript "access plus 3 days"
ExpiresByType image/jpeg "access plus 3 days"
ExpiresByType image/png "access plus 3 days"
ExpiresByType image/gif "access plus 3 days"
ExpiresByType image/x-icon "access plus 3 days"


※. YSlow だと「.ico がキャッシュ対象に含まれてない」と怒られるのはなぜ?