=== Last Modified === Contributors: yaofuyuan Tags: modified, last, date, time Stable tag: trunk Add post last modified to HTTP header to enable squid or cdn to cache your wordpress web page. Squid will not cache the page without http header field Last-Modified. == Installation == 1. Upload `header-last-modified` to the `/wp-content/plugins/` directory 2. Activate the plugin through the 'Plugins' menu in WordPress,must do it! 3. Place `header_last_modified()` in /your_website_path/wp-includes/template-loader.php before "if ( $template = apply_filters( 'template_include', $template ) )" . Like this: header_last_modified(); if ( $template = apply_filters( 'template_include', $template ) ) include( $template ); return; == Configuration ==