nodejs.org: falling back to english when page hasn't been translated.

Refs nodejs/nodejs.org#490

setup/www/resources/config/nodejs.org

@@ -45,6 +45,8 @@ server {
     }
 
     location / {
+        try_files $uri $uri/ @english_fallback;
+
         location ~ \.json$ {
             add_header access-control-allow-origin *;
         }
@@ -59,6 +61,12 @@ server {
             add_header access-control-allow-origin *;
         }
     }
+
+    # instead of serving a 404 page when a page hasn't been translated
+    location @english_fallback {
+        rewrite ^/(it|ko)/(.*)$ http://nodejs.org/en/$2;
+        return 404;
+    }
 }
 
 server {
@@ -215,11 +223,19 @@ server {
     location / {
         rewrite ^/$ /en/ redirect;
 
+        try_files $uri $uri/ @english_fallback;
+
         location ~ \.json$ {
             add_header access-control-allow-origin *;
         }
     }
 
+    # instead of serving a 404 page when a page hasn't been translated
+    location @english_fallback {
+        rewrite ^/(it|ko)/(.*)$ https://nodejs.org/en/$2;
+        return 404;
+    }
+
     location /download {
         alias /home/dist/nodejs;
         autoindex on;