old_contents: # coding: utf-8
  """
  django_turbolinks
  ~~~~~~~~~~~~~~~~
  some of this code copy from https://github.com/lepture/flask-turbolinks
  thanks for Hsiaoming Yang <me@lepture.com> and rei <http://chloerei.com/>
  """
  
  try:
      from urlparse import urlparse
  except ImportError:
      # python 3
      from urllib.parse import urlparse
  
      __version__ = '0.0.1'
  
  def same_origin(current_uri, redirect_uri):
      parsed_uri = urlparse(current_uri)
      if not parsed_uri.scheme:
          return True
      parsed_redirect = urlparse(redirect_uri)
  
      if parsed_uri.scheme != parsed_redirect.scheme:
          return False
  
      if parsed_uri.hostname != parsed_redirect.hostname:
          return False
  
      if parsed_uri.port != parsed_redirect.port:
          return False
      return True
  
  
  class TurbolinksMiddleware(object):
  
      def process_response(self, request, response):
          referrer = request.META.get('HTTP_X_XHR_REFERER', None)
          if not referrer:
              # turbolinks not enabled
              return response
  
          method = request.COOKIES.get('request_method', None)
          if not method or method != request.method:
              response.set_cookie('request_method', request.method)
          if response.has_header('Location'):
              # this is a redirect response
              loc = response['Location']
              request.session['_turbolinks_redirect_to'] = loc
              # cross domain redirect
              if referrer and not same_origin(loc, referrer):
                  response.status_code = 403
          else:
              if request.session.get('_turbolinks_redirect_to', None):
                  loc = request.session.pop('_turbolinks_redirect_to')
                  response['X-XHR-Redirected-To'] = loc
          return response
  
  
  
  
new_contents: # coding: utf-8
  """
  django_turbolinks
  ~~~~~~~~~~~~~~~~
  some of this code copy from https://github.com/lepture/flask-turbolinks
  thanks for Hsiaoming Yang <me@lepture.com> and rei <http://chloerei.com/>
  """
  
  try:
      from urlparse import urlparse
  except ImportError:
      # python 3
      from urllib.parse import urlparse
  
      __version__ = '0.0.1'
  
  def same_origin(current_uri, redirect_uri):
      parsed_uri = urlparse(current_uri)
      if not parsed_uri.scheme:
          return True
      parsed_redirect = urlparse(redirect_uri)
  
      if parsed_uri.scheme != parsed_redirect.scheme:
          return False
  
      if parsed_uri.hostname != parsed_redirect.hostname:
          return False
  
      if parsed_uri.port != parsed_redirect.port:
          return False
      return True
  
  
  class TurbolinksMiddleware(object):
  
      def process_request(self, request):
          referrer = request.META.get('HTTP_X_XHR_REFERER')
          if referrer:
              # overwrite referrer
              request.META['HTTP_REFERER'] = referrer
          return request
  
      def process_response(self, request, response):
          referrer = request.META.get('HTTP_X_XHR_REFERER')
          if not referrer:
              # turbolinks not enabled
              return response
  
          method = request.COOKIES.get('request_method')
          if not method or method != request.method:
              response.set_cookie('request_method', request.method)
  
          if response.has_header('Location'):
              # this is a redirect response
              loc = response['Location']
              request.session['_turbolinks_redirect_to'] = loc
  
              # cross domain redirect
              if referrer and not same_origin(loc, referrer):
                  response.status_code = 200
                  response.content = (
                      '<body><script>location.href="%s"</script></body>'
                  ) % loc
          else:
              if request.session.get('_turbolinks_redirect_to'):
                  loc = request.session.pop('_turbolinks_redirect_to')
                  response['X-XHR-Redirected-To'] = loc
          return response
  
subject: update django middleware code