Hy everyone! It turns out that HttpAdditionModule is only working for the PHP files stored into the web root dir. All content from, let's say, "/forum" won't display the embedded content. Error log pointed out that Nginx is including the subdirectory into the HttpAdditionModule URI, so "/header/global.php" mistakenly becomes "/forum/header/global.php". Needlessby Smeagle - Nginx Mailing List - English