Thanks for your reply. update the proxy_ignore_headers with Vary fixed the issueby edanic0017 - Nginx Mailing List - English
I am running nginx server in front of httpd server. nginx -V nginx version: nginx/1.10.2 built by gcc 4.4.7 20120313 (Red Hat 4.4.7-17) (GCC) built with OpenSSL 1.0.1e-fips 11 Feb 2013 TLS SNI support enabled configure arguments: --prefix=/usr/share/nginx --sbin-path=/usr/sbin/nginx --modules-path=/usr/lib64/nginx/modules --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/erby edanic0017 - Nginx Mailing List - English