def escape_ajax(url):
    defrag, frag = urldefrag(url)
    if not frag.startswith('!'):
        return url
    return add_or_replace_parameter(defrag, '_escaped_fragment_', frag[1:])
The command to kill the controller
dataset/ETHPy150Open scrapy/scrapy/scrapy/utils/url.py/escape_ajax--crossover with--dataset/ETHPy150Open ucb-sts/sts/sts/entities/controllers.py/ControllerConfig.kill_cmd