code: def render_tag(self, context, caller, **kwargs):
          '''render content with "active" urls logic'''
          # load configuration from passed options
          self.load_configuration(**kwargs)
  
          # get request from context
          request = context['request']
  
          # get full path from request
          self.full_path = request.get_full_path()
  
          # render content of extension
          content = caller()
  
          # check content for "active" urls
          content = render_content(
              content,
              full_path=self.full_path,
              parent_tag=self.parent_tag,
              css_class=self.css_class,
              menu=self.menu,
              ignore_params=self.ignore_params,
          )
  
          return contenf render_tag(self, context, caller, **kwargs):
          '''render content with "active" urls logic'''
          # load configuration from passed options
          self.load_configuration(**kwargs)
  
          # get request from context
          request = context['request']
  
          # get full path from request
          self.full_path = request.get_full_path()
  
          # render content of extension
          content = caller()
  
          # check content for "active" urls
          content = render_content(
              content,
              full_path=self.full_path,
              parent_tag=self.parent_tag,
              css_class=self.css_class,
              menu=self.menu,
              ignore_params=self.ignore_params,
          )
  
          return content
docs: render content with "active" urls logic