Fix exact match of .js files. Was also matching .json before.

production/nginx/server-common.conf

@@ -59,7 +59,7 @@ location = / {
 }
 
 # cache /<lang>/main.f40e91d908a068a2.js forever since they never change
-location ~ ^/([a-z][a-z])/(.+\..+\.(js|css)) {
+location ~ ^/([a-z][a-z])/(.+\..+\.(js|css))$ {
 	try_files $uri =404;
 	expires 1y;
 }
@@ -82,7 +82,7 @@ location /resources {
 	expires 1w;
 }
 # cache /main.f40e91d908a068a2.js forever since they never change
-location ~* ^/.+\..+\.(js|css) {
+location ~* ^/.+\..+\.(js|css)$ {
 	try_files /$lang/$uri /en-US/$uri =404;
 	expires 1y;
 }