[Update]Check if load ajax

wp-content/themes/nap/assets/js/product.js

@@ -297,11 +297,11 @@ $(function(){
        //localStorage['from-site'] = true;
        $('head').append($('.header-shop'));
        var toLink = $(this).data('link');
-       history.pushState(null, null, toLink);
        //	$.post(toLink, { fromSite: true});
 		//$.cookie("formSite", 1);
 		$('.load-page').parent().addClass('active');
-		$('.load-page').load(toLink,function(){
+		$('.load-page').load(toLink,{'ajax' : 1}, function(){
+			history.pushState(null, null, toLink);
 			loadProductContent();
 			$('html').css('overflow','hidden');
 		});

wp-content/themes/nap/footer-shop.php

  <?php 
- $ext_ref = externe_referrer();
- if($ext_ref) {
+//$ext_ref = externe_referrer();
+if (!(isset($_POST['ajax']))) {
  	get_footer();
  }else{
  	//wp_footer();

wp-content/themes/nap/header-shop.php

 <?php 
-$ext_ref = externe_referrer();
-if($ext_ref) {
+//$ext_ref = externe_referrer();
+if (!(isset($_POST['ajax']))) {
 	get_header();
 }else{
 	//wp_head();