s-maxage 頭作用於反向代理伺服器
例 4.5. Cache
$HTTP["url"] =~ "^/images/2010" { expire.url = ( "" => "access 15 minutes" ) } $HTTP["host"] =~ "(img1|img2|img3)\.example\.com" { expire.url = ( "" => "access 15 minutes" ) setenv.add-response-header = ("Cache-Control" =>"s-maxage=3600") }