How to debug weblogic proxy

 I am getting "no backend servers available" when i try to connect weblogic proxy server and I am able to connect the application when i use http port but not https. Below is the web.xml & weblogic.xml. I am using https port numbers in web.xml

WLS version 10.3.5

SSL certification: WebLogic default certification.

WEB.XML:

<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">

<web-app>

<servlet>

<servlet-name>HttpClusterServlet</servlet-name>

<servlet-class>weblogic.servlet.proxy.HttpClusterServlet</servlet-class>

<init-param>

<param-name>WebLogicCluster</param-name>

<param-value>192.168.1.3:8032|192.168.1.3:8031</param-value>

</init-param>

<init-param>

<param-name>verbose</param-name>

<param-value>true</param-value>

</init-param>