Added proper no-cache headers to all file requests

Author: Adam A. Zerella

.deploy/nginx/nginx-production.conf

@@ -42,10 +42,7 @@ http {
     location / {
       root ./;
       try_files $uri $uri.html $uri/ $uri/index.html =404;
-    }
-
-    location ~* \.(html|htm)$ {
-      add_header Cache-Control "no-cache";
+      add_header 'Cache-Control' 'no-store, no-cache, must-revalidate, proxy-revalidate, max-age=0';
     }
 
   }

.deploy/nginx/nginx-testing.conf

@@ -44,16 +44,13 @@ http {
     location / {
       root ./;
       try_files $uri $uri.html $uri/ $uri/index.html =404;
+      add_header 'Cache-Control' 'no-store, no-cache, must-revalidate, proxy-revalidate, max-age=0';
     }
 
     location /robots.txt {
       add_header Content-Type text/plain;
       return 200 "User-agent: *\nDisallow: *";
     }
 
-    location ~* \.(html|htm)$ {
-      add_header Cache-Control "no-cache";
-    }
-
   }
 }