How to make Wildfly send "Connection: close" instead of "Connection: keep-alive"

gistfile1.xml

        <subsystem xmlns="urn:jboss:domain:undertow:1.1">
            <buffer-cache name="default"/>
            <server name="default-server">
                <http-listener name="default" socket-binding="http" always-set-keep-alive="false"/>
                <https-listener name="default-s" socket-binding="https" security-realm="UndertowRealm" always-set-keep-alive="false"/>
                <host name="default-host" alias="localhost">
                    <location name="/" handler="welcome-content"/>
                    <access-log prefix="access"/>
                    <filter-ref name="connection-close"/>
                    <filter-ref name="server-header"/>
                    <filter-ref name="x-powered-by-header"/>
                </host>
            </server>
            <servlet-container name="default">
                <jsp-config/>
            </servlet-container>
            <handlers>
                <file name="welcome-content" path="${jboss.home.dir}/welcome-content"/>
            </handlers>
            <filters>
                <response-header name="connection-close" header-name="Connection" header-value="close"/>
                <response-header name="server-header" header-name="Server" header-value="WildFly/8"/>
                <response-header name="x-powered-by-header" header-name="X-Powered-By" header-value="Undertow/1"/>
            </filters>
        </subsystem>

Hi janfabry.

how to set keepalive : timeout with max in wildfly 9.0.2 server.