The reason I ask is $releasever actually returns 7Server or 6Server in RHEL 6.x and RHEL 7.x
HTTP/1.1 302 Found
Date: Fri, 29 Apr 2016 06:21:10 GMT
Server: Apache/2.4.6 (Red Hat Enterprise Linux) OpenSSL/1.0.1e-fips mod_wsgi/3.4 Python/2.7.5
AppTime: D=4837
Content-Type: text/html; charset=UTF-8
HTTP/1.1 200 OK
Date: Fri, 29 Apr 2016 06:21:11 GMT
Server: ATS/5.2.0
Last-Modified: Wed, 27 Apr 2016 23:01:25 GMT
Content-Type: text/html;charset=ISO-8859-1
Age: 0
HTTP/1.1 404 Not Found
Date: Fri, 29 Apr 2016 06:21:16 GMT
Server: Apache/2.4.6 (Red Hat Enterprise Linux) OpenSSL/1.0.1e-fips mod_wsgi/3.4 Python/2.7.5
AppTime: D=235363
Content-Type: text/html; charset=UTF-8