registered ) ) { continue; } $ver = $wp_scripts->registered[ $handle ]->ver ? $wp_scripts->registered[ $handle ]->ver : $wp_version; $etag .= "{$handle}:{$ver};"; } /* * This is not intended to be cryptographically secure, just a fast way to get * a fixed length string based on the script versions. As this file does not * load the full WordPress environment, it is not possible to use the salted * wp_hash() function. */ $etag = 'W/"' . md5( $etag ) . '"'; if ( isset( $_SERVER['HTTP_IF_NONE_MATCH'] ) && stripslashes( $_SERVER['HTTP_IF_NONE_MATCH'] ) === $etag ) { header( "$protocol 304 Not Modified" ); exit; } foreach ( $load as $handle ) { if ( ! array_key_exists( $handle, $wp_scripts->registered ) ) { continue; } $path = ABSPATH . $wp_scripts->registered[ $handle ]->src; $out .= get_file( $path ) . "\n"; } header( "Etag: $etag" ); header( 'Content-Type: application/javascript; charset=UTF-8' ); header( 'Expires: ' . gmdate( 'D, d M Y H:i:s', time() + $expires_offset ) . ' GMT' ); header( "Cache-Control: public, max-age=$expires_offset" ); echo $out; exit;