我试图拦截http包中的标记，但我只得到了部分标记。出于某种原因，它在中间被切断了。是不是跟那个有关？下面是我的代码：

import scrapy
from scrapy.crawler import CrawlerProcess
from scrapy.utils.log import configure_logging

class StackOverflowSpider(scrapy.Spider):
    
    name = 'stackoverflow'
    allowed_domains = ['stackoverflow.com']
    start_urls = ['https://stackoverflow.com/questions/tagged/python?tab=newest&page=1&pagesize=15']
    first_request_done = False
    
    def start_requests(self):
        if not self.first_request_done:
            self.first_request_done = True
            for url in self.start_urls:
                yield scrapy.Request(url=url, callback=self.parse, dont_filter=True)
            
    def parse(self, response):
        if response.status == 200 and response.headers.get('Content-Type', '').startswith(b'text/html'):
            html = response.body.decode('utf-8')
            print(html)
        
        yield
    

configure_logging()
process = CrawlerProcess(settings={
    'LOG_ENABLED': False,
    'DOWNLOAD_DELAY': 1,
    'CONCURRENT_REQUESTS': 1
})
process.crawl(StackOverflowSpider)
process.start(stop_after_crawl=False)