2042350 - Cant retrieve list of values HTTP 2032 when refreshing explorer infospace

• Users sporadically get the following error popup on their browsers while accessing explorer View sets or Infospaces on BI Platform Explorer which is configured with Siteminder Single Sign-on (SSO),
  SSL and F5 loadbalancer.
   
  Can't retrieve list of values.
  HTTP request error
  Error #2032 
   
• This error can be seen sporadically while working (refreshing or applying filters) with pre-created explorer Infospaces or exploration view sets in a BI launchpad. The same error can also be seen in explorer application as well while creating explorer infospaces.
  
  
  
  
  
• The issue can be seen on all supported browsers.
• However, the issue was particularly seen to occur when accessing BI Launchpad or Explorer applications via the Siteminder URL.
• The issue cannot be seen when accessing these applications directly on the Tomcat Application Server where they have been deployed [ by passing Siteminder SSO and F5 load  balancing ].
• HTTP traces (Fiddler or http watch) show a HTTP 500 error with a Bad server request error

SAP BI Platform 4.x [ clustered & load-balanced ]
SAP BI Explorer 4.x
Tomcat Web Application Server 7.0
Siteminder SSO with Siteminder proxy [Apache web agent and Tomcat server proxy ]
F5 Loadbalancer

BI Explorer 4.0 4.1 F5 2032 loadbalance lb siteminder SSO hang spin fail flash , KBA , BI-RA-EXP , Obsolete: Polestar, Explorer , BI-BIP-DEP , Webapp Deployment, Networking, Vulnerabilities, Webservices , Problem