diff --git a/api/api_default.php b/api/api_default.php
index 3bce477..f0ac462 100644
--- a/api/api_default.php
+++ b/api/api_default.php
@@ -53,7 +53,7 @@ abstract class api_default extends api_system implements api_default_interface {
     public static function static__escaped_fragment_($_escaped_fragment_){
         \libxml_use_internal_errors(true);
         $html = new \DOMDocument();
-        $html->loadHTML(static::default_page($_escaped_fragment_ ? $_escaped_fragment_ : true));
+        $html->loadHTML(static::default_page($_escaped_fragment_ ? $_escaped_fragment_ : true),LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);
         if($error = \libxml_get_last_error()){
             //new \SYSTEM\LOG\ERROR('Parse Error: '.$error->message.' line:'.$error->line.' html: '.$html->saveHTML());
             \libxml_clear_errors();}
@@ -63,7 +63,7 @@ abstract class api_default extends api_system implements api_default_interface {
             parse_str(\parse_url($row['url'],PHP_URL_QUERY), $params);
             $class = static::get_class();
             if($class){
-                $frag->loadHTML(mb_convert_encoding(\SYSTEM\API\api::run('\SYSTEM\API\verify', $class, $params, static::get_apigroup(), true, false),'HTML-ENTITIES', 'UTF-8'));
+                $frag->loadHTML(mb_convert_encoding(\SYSTEM\API\api::run('\SYSTEM\API\verify', $class, $params, static::get_apigroup(), true, false),'HTML-ENTITIES', 'UTF-8'),LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);
                 if($error = \libxml_get_last_error()){
                     //new \SYSTEM\LOG\ERROR('Parse Error: '.$error->message.' line:'.$error->line.' html: '.$frag->saveHTML());
                     \libxml_clear_errors();}
@@ -71,7 +71,7 @@ abstract class api_default extends api_system implements api_default_interface {
                 //Load subpage css
                 foreach($row['css'] as $css){
                     $css_frag = new \DOMDocument();
-                    $css_frag->loadHTML('<link href="'.$css.'" rel="stylesheet" type="text/css">');
+                    $css_frag->loadHTML('<link href="'.$css.'" rel="stylesheet" type="text/css">',LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);
                     $html->getElementsByTagName('head')[0]->appendChild($html->importNode($css_frag->documentElement,true));
                 }
             }
diff --git a/files/files.php b/files/files.php
index 8a59562..0fa0986 100644
--- a/files/files.php
+++ b/files/files.php
@@ -56,6 +56,7 @@ class files {
             call_user_func('\SYSTEM\HEADER::'.$ext);
         }else{
             \SYSTEM\HEADER::FILE($id);}
+        \session_cache_limiter('private_no_expire');
         header("Last-Modified: " . gmdate('D, d M Y H:i:s \G\M\T', filemtime(self::$folders[$cat].$id)));
             
         //Allow Caching for all files
diff --git a/security/security.php b/security/security.php
index 52463ea..55d3de8 100644
--- a/security/security.php
+++ b/security/security.php
@@ -356,6 +356,7 @@ class security {
      */
     protected static function startSession(){
         if(!isset($_SESSION) && !headers_sent()){
+            //\session_cache_limiter('private_no_expire');
             \session_start();}
         //respect locale from db if not set(right place here?)
         if( isset($_SESSION[\SYSTEM\CONFIG\config::get(\SYSTEM\CONFIG\config_ids::SYS_CONFIG_PATH_BASEURL)]) &&
diff --git a/system/HEADER.php b/system/HEADER.php
index 42940ab..c86c865 100644
--- a/system/HEADER.php
+++ b/system/HEADER.php
@@ -56,7 +56,7 @@ class HEADER {
      */
     public static function PNG(){
         if(self::checkHeader()){
-            header('Expires: '.gmdate('D, d M Y H:i:s \G\M\T', time() + (60 * 60 * 24 * 7))); // 1 week
+            //header('Expires: '.gmdate('D, d M Y H:i:s \G\M\T', time() + (60 * 60 * 24 * 7*4*52))); // 1 week
             header('content-type:image/png');}}
     /**
      * Send JPG Headers, if Header was not sent yet
@@ -65,7 +65,7 @@ class HEADER {
      */
     public static function JPG(){
         if(self::checkHeader()){
-            header('Expires: '.gmdate('D, d M Y H:i:s \G\M\T', time() + (60 * 60 * 24 * 7))); // 1 week
+            //header('Expires: '.gmdate('D, d M Y H:i:s \G\M\T', time() + (60 * 60 * 24 * 7))); // 1 week
             header('content-type:image/jpeg');}}
     /**
      * Send JPEG Headers, if Header was not sent yet
@@ -74,7 +74,7 @@ class HEADER {
      */
     public static function JPEG(){
         if(self::checkHeader()){
-            header('Expires: '.gmdate('D, d M Y H:i:s \G\M\T', time() + (60 * 60 * 24 * 7))); // 1 week
+            //header('Expires: '.gmdate('D, d M Y H:i:s \G\M\T', time() + (60 * 60 * 24 * 7))); // 1 week
             header('content-type:image/jpeg');}}   
     /**
      * Send GIF Headers, if Header was not sent yet
@@ -83,7 +83,7 @@ class HEADER {
      */
     public static function GIF(){
         if(self::checkHeader()){
-            header('Expires: '.gmdate('D, d M Y H:i:s \G\M\T', time() + (60 * 60 * 24 * 7))); // 1 week
+            //header('Expires: '.gmdate('D, d M Y H:i:s \G\M\T', time() + (60 * 60 * 24 * 7))); // 1 week
             header('content-type:image/gif');}}  
     /**
      * Send JS Headers, if Header was not sent yet
@@ -92,7 +92,7 @@ class HEADER {
      */
     public static function JS(){
         if(self::checkHeader()){
-            header('Expires: '.gmdate('D, d M Y H:i:s \G\M\T', time() + (60 * 60 * 24 * 7))); // 1 week
+            //header('Expires: '.gmdate('D, d M Y H:i:s \G\M\T', time() + (60 * 60 * 24 * 7))); // 1 week
             header('content-type:application/javascript');}}
     /**
      * Send CSS Headers, if Header was not sent yet
@@ -101,7 +101,7 @@ class HEADER {
      */
     public static function CSS(){
         if(self::checkHeader()){
-            header('Expires: '.gmdate('D, d M Y H:i:s \G\M\T', time() + (60 * 60 * 24 * 7))); // 1 week
+            //header('Expires: '.gmdate('D, d M Y H:i:s \G\M\T', time() + (60 * 60 * 24 * 7))); // 1 week
             header('content-type:text/css');}}
     /**
      * Send LESS Headers, if Header was not sent yet