web/src/main/webapp/WEB-INF/web.xml

<?xml version="1.0" encoding="ISO-8859-1"?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee" version="2.5"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="
        http://java.sun.com/xml/ns/javaee
        http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd
    ">

    <display-name>Karaf WebConsole</display-name>

    <listener>
        <listener-class>org.apache.karaf.webconsole.web.StartupListener</listener-class>
    </listener>

    <listener>
        <listener-class>org.apache.felix.http.proxy.ProxyListener</listener-class>
    </listener>

    <servlet>
        <servlet-name>proxy</servlet-name>
        <servlet-class>org.apache.felix.http.proxy.ProxyServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>proxy</servlet-name>
        <url-pattern>/*</url-pattern>
    </servlet-mapping>

</web-app>