scrapy 爬取遇到问题Filtered duplicate

用scrapy请求站点 http://bigfile.co.kr 的时候，显示Filtered duplicate request:no more duplicates错误，然后就结束了，加上dont_filter=True，重新运行，结果一直死循环，无法结束，也不能爬到东西，有没有大神看一下

 name = 'WebSpider'
    start_urls = ['http://bigfile.co.kr']
    headers = {
        "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8",
        "Accept-Encoding": "gzip, deflate, br",
        "Accept-Language": "zh-CN,zh;q=0.9",
        "Connection": "keep-alive",
        'Referer': 'http://www.baidu.com/',
        "Upgrade-Insecure-Requests": 1,
        "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36"
    }

    def start_requests(self):
        request = scrapy.Request(url=self.start_urls[0], headers=self.headers, callback=self.parse)
        request.meta['url'] = self.start_urls[0]
        yield request

加下参数dont_filter=True

https://www.walkerfree.com/article/25/