@property
  def header_data(self):

    header_list = []
    for header in self.headers.headers:
      header = header.rstrip('\n\r')
      header_list.append(header)
    if not self.headers.getheader('Content-Type'):

      header_list.append('Content-Type: text/html')

    return '\r\n'.join(header_list) + '\r\n'
DotpayProvider.get_hidden_fields() returns a dictionary
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/tools/dev_appserver.py/AppServerResponse.header_data--crossover with--dataset/ETHPy150Open mirumee/django-payments/payments/dotpay/test_dotpay.py/TestDotpayProvider.test_get_hidden_fields