Track NGINX config

etc/nginx/common.conf

@@ -0,0 +1,13 @@
+	location /icons {
+		expires 60m;
+		# add_header Cache-Control "max-age=3600";
+	}
+	location /qr-codes {
+		# while an underestimate, 
+		# this prevents us from tracking users across visits
+		expires 60m;
+		# add_header Cache-Control "max-age=3600";
+	}
+    location /listings/lp-output {
+        default_type application/json;
+    }