Clarity: Filter throws Network error after implementing SSL

Products

• Clarity PPM On Premise

Issue/Introduction

We are in the process of implementing SSL on the Clarity application. For this, we are using the option "SSL is used but processed externally" in CSA( Application tab).

And here the current setup is 

"Client Web Browser speaks HTTP to Apache HTTP proxy which speaks HTTP to Clarity PPM HTTP tomcat port"
 

And we want to change it to 

"Client Web Browser speaks HTTPS to Apache HTTP proxy which speaks HTTP to Clarity PPM HTTP tomcat port"

Once the setup is completed, we are seeing "Unable to communicate to the PPM server error" in the application while accessing the tabs( For example: When we click on "Filter" or "show All" in project or "Resource page" )

Environment

Release : 15.7.1

Component : CA PPM INTEGRATIONS & INSTALLATIONS

Resolution

We have found a duplicate x-frame-options header with value DENY being added by the LB/Apache Web Server which was causing the issue with the filter requests.

We removed the additional header from the LB/Web Server.