Support the X-Forwarded-Proto header for FastCGI.

Author: Pierre Buyle

templates/nginx.j2

@@ -190,11 +190,12 @@ http {
     ## previous version then uncomment out the line below.
     #include map_https_fcgi.conf;
 
-    ## Include this line, if used in a loadbalanced environment
-    ## and comment the line which includes map_https_fcgi.conf.
-    ## If the loadbalancer always sends the request in http protocol,
-    ## and adds the server variable $http_x_forwarded_proto
-    #include map_https_forwarded_proto.conf;
+    ## Support the X-Forwarded-Proto header for FastCGI.
+    map $http_x_forwarded_proto $fastcgi_https {
+      default $https;
+      http '';
+      https on;
+    }
 
     ## Include the upstream servers for Apache handling the PHP
     ## processes. In this case Nginx functions as a reverse proxy.