check preview content in admin part

 module Kanjai
   module Admin::PagesHelper
+    require 'open-uri'
+
     def get_html_by_json(page_data, client_view = false)
       json_data = page_data.template_content
       html = ''
@@ -18,7 +20,7 @@ module Kanjai
         if client_view == false and row['attributes']['type'] == 'block'
           html_attributes['data-id'] = row['attributes']['id']
           page_content = page_data.page_contents.where(:structure_id => row['attributes']['id']).first
-          row_html = '<div class="col-html">' + (page_content.nil? ? '' : page_content.get_content_frontend) + '</div>'
+          row_html = '<div class="col-html">' + (page_content.nil? ? '' : wrap_iframe(page_content)) + '</div>'
         end
 
         if client_view == false and row['attributes']['type'] == 'row'
@@ -31,7 +33,7 @@ module Kanjai
           ActionController::Base.helpers.concat(row_html.html_safe)
           row["cells"].each do |cell|
             page_content = page_data.page_contents.where(:structure_id => cell['id']).first
-            html = page_content.nil? ? '' : page_content.get_content_frontend
+            html = page_content.nil? ? '' : wrap_iframe(page_content)
 
             cell_class_name = ''
 
@@ -160,5 +162,37 @@ module Kanjai
       html.html_safe
     end
 
+    def wrap_iframe(page_content)
+      content = page_content.get_content_frontend
+      layer = page_content.page_datum.page.page_template.get_html_content
+
+      css_files = [].tap do |n|
+        doc = Nokogiri::HTML(layer, nil, 'UTF-8')
+        doc.css("link").each do |x|
+          if x['rel'] == 'stylesheet'
+            css_link = x['href']
+            n << css_link
+          end
+        end
+      end
+      styles = css_files.collect do |file|  
+        #begin
+          Net::HTTP.get(URI.parse(file))
+        #rescue
+
+        #end
+      end
+
+      #css_files = css_files.collect{|link| "<link rel='stylesheet' href='#{link}' />".html_safe  }.join('')
+      content += "<style>#{styles.join(' ')}</style>".html_safe
+
+    #<link rel="stylesheet" href="./assets/css/libs.bundle.css" />
+
+      "<iframe frameBorder='0' src='data:text/html;charset=utf-8,#{ERB::Util.url_encode(content)}'></iframe>"
+    end
+
+
   end
+
+
 end
\ No newline at end of file

 module Kanjai
-  VERSION = "0.0.318"
+  VERSION = "0.0.319"
 end