我在代理服务器后面。使用Selenium 2.39，Python 2.7.6和ChromeDriver
2.9，每当我.quit()在Chrome实例上调用时，都会收到HTTP 407错误。使用FirefoxDriver时，不会发生此类错误。

Traceback (most recent call last):
File "C:\Users\Tetrinity\Desktop\chrometest.py", line 7, in <module>
    browser.quit()
  File "C:\Python27\lib\site-packages\selenium-2.39.0-py2.7.egg\selenium\webdriver\chrome\webdriver.py", line 82, in quit
    self.service.stop()
  File "C:\Python27\lib\site-packages\selenium-2.39.0-py2.7.egg\selenium\webdriver\chrome\service.py", line 97, in stop
    url_request.urlopen("http://127.0.0.1:%d/shutdown" % self.port)
  File "C:\Python27\lib\urllib2.py", line 127, in urlopen
    return _opener.open(url, data, timeout)
  File "C:\Python27\lib\urllib2.py", line 410, in open
    response = meth(req, response)
  File "C:\Python27\lib\urllib2.py", line 523, in http_response
    'http', request, response, code, msg, hdrs)
  File "C:\Python27\lib\urllib2.py", line 448, in error
    return self._call_chain(*args)
  File "C:\Python27\lib\urllib2.py", line 382, in _call_chain
    result = func(*args)
  File "C:\Python27\lib\urllib2.py", line 531, in http_error_default
    raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)
HTTPError: HTTP Error 407: Proxy Authentication Required ( The ISA Server requires authorization to fulfill the request. Access to the Web Proxy service is denied.  )

可以将问题简化为以下脚本，我将其另存为chrometest.py（如上述堆栈跟踪所示）：

from selenium import webdriver
browser = webdriver.Chrome()
browser.get("http://www.google.co.uk")
browser.quit()

此脚本成功打开了Chrome并导航到Google。在.quit()随后导致上述崩溃，留下一个死ChromeDriver实例躺在附近。可能是什么原因造成的，如何预防？

研究已经变成了很多的答案的都不太相关，过于复杂的东西或者声称这是一个已经固定的问题。