Merge pull request #1586 from GSA/remove-nginx-version-from-proxy-curl

removes nginx version from proxy when curl'ed directly

Author: neilmb

Makefile

@@ -51,6 +51,8 @@ test: clean build
 
 # everytime you added some new variables, you need to swap it with some test values
 # and swap it back after the test. This is because "nginx -t" test cannot read env variables.
+# NOTE: on Mac OS-X you need to install gnu-sed `brew install gnu-sed` and add gnubin to your $PATH
+#		or this will error out b/c Mac uses BSD-sed
 validate-proxy:
 	sed -i 's/{{nameservers}}/127.0.0.1/g' proxy/nginx.conf
 	sed -i 's/{{env "EXTERNAL_ROUTE"}}/127.0.0.2/g' proxy/nginx.conf proxy/nginx-cloudfront.conf

proxy/nginx-common.conf

@@ -110,3 +110,5 @@ location /maptiles {
   proxy_pass https://tile.openstreetmap.org/;
 }
 
+# Don't leak any server information in response headers
+server_tokens off;