Creates a fresh session with no/default headers and proxies

def _create_session(self):
        """
        Creates a fresh session with no/default headers and proxies
        """
        logger.debug("Create new phantomjs web driver")
        self.driver = webdriver.PhantomJS(desired_capabilities=self.dcap,
                                          **self.driver_args)
        self.set_cookies(self.current_cookies)
        self.driver.set_window_size(1920, 1080)