Virtual host in jboss-web.xml doesn't work

      <subsystem xmlns="urn:jboss:domain:undertow:2.0">
            <buffer-cache name="default"/>
            <server name="default-server">
                <http-listener name="default" socket-binding="http"/>
                <host name="default-host" alias="localhost">
                    <location name="/" handler="welcome-content"/>
                    <filter-ref name="server-header"/>
                    <filter-ref name="x-powered-by-header"/>
                </host>
            </server>
            <server name="undertow-server2">
                <http-listener name="listener2" socket-binding="http2"/>
                <host name="vhost2" alias="localhost4">
                    <location name="/" handler="welcome-content2"/>
                    <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="${jboss.home.dir}/welcome-content"/>
                <file name="welcome-content2" path="${jboss.home.dir}/welcome-content2"/>
            </handlers>
            <filters>
                <response-header name="server-header" header-name="Server" header-value="WildFly/9"/>
                <response-header name="x-powered-by-header" header-name="X-Powered-By" header-value="Undertow/1"/>
            </filters>
        </subsystem>