为什么browsermob-proxy得到的request，会比chrome得到的request少？

[CSDNRGY]

chrome得到的请求，53个

browsermob-proxy得到的请求，48个


我的代码

# _*_ coding:utf-8 _*_
from selenium import webdriver
from selenium.webdriver.chrome.options import Options
from browsermobproxy import Server
import json
from time import sleep

try:
    # 启动代理
    server = Server(r'/Users/renguanyu/app/browsermob-proxy/2.1.4/bin/browsermob-proxy')
    server.start()
    proxy = server.create_proxy()

    # 启动浏览器
    chrome_options = Options()
    chrome_options.add_argument('--ignore-certificate-errors')
    chrome_options.add_argument('--proxy-server={0}'.format(proxy.proxy))
    # chrome_options.add_argument('--headless')  # 无头模式
    browser = webdriver.Chrome(options=chrome_options)
    browser.implicitly_wait(60)

    # 监听结果
    url = 'https://www.baidu.com/'
    proxy.new_har(options={
            'captureContent': True,
            'captureHeaders': True
        })
    browser.get(url)

    # 打印network
    result = proxy.har
    log = result["log"]
    entries = log["entries"]

    list = []
    for entrie in entries:
        request = entrie["request"]
        request_url = request["url"]
        response = entrie["response"]
        status = response["status"]

        dict = {
            "url": request_url,
            "status": status
        }
        list.append(dict)

    # sleep(30)
    print("request_list",list)
    print("request_list_length",len(list))

finally:
    print("执行完毕，准备关闭程序")
    # sleep(3)
    # 关闭代理和浏览器
    proxy.close()
    print("关闭代理")
    # browser.close()
    browser.quit()
    print("关闭浏览器")