'Returns a bucket\'s CORS XML document.
:param dict headers: Additional headers to send with the request.
:rtype: :class:`~.cors.Cors`'

def get_cors(self, headers=None):

    response = self.connection.make_request('GET', self.name, query_args=CORS_ARG, headers=headers)
    body = response.read()
    if (response.status == 200):
        cors = Cors()
        h = handler.XmlHandler(cors, self)
        xml.sax.parseString(body, h)
        return cors
    else:
        raise self.connection.provider.storage_response_error(response.status, response.reason, body)
