title: Unable to access unsecured https with selenium using browsermob proxy
body: <p>I'm trying to embed browsermob proxy with my selenium (chrome) framework for UI automated testing in order to intercept responses and other networking.</p>
  
  <p>Description :</p>
  
  <p>Selenium webdriver using browsermob proxy and it works just fine - HTTP and secured HTTPS URL's are OK. When I'm trying to navigate to unsecured HTTPS URL I get this chrome error:
  ERR_TUNNEL_CONNECTION_FAILED</p>
  
  <p>Here's my python code:</p>
  
  <pre><code>class Browser(object):
      display = None
      browser = None
  
      def __init__(self, implicitly_wait_seconds=10, is_visible=True, display_size=None, browser_name='chrome'):
          if not is_visible:
              self.display = Display(display_size)
          self.server = Server('/home/erez/Downloads/browsermob-proxy-2.1.4/bin/browsermob-proxy')
          self.server.start()
          self.proxy = self.server.create_proxy()
          self.capabilities = DesiredCapabilities.CHROME
          self.proxy.add_to_capabilities(self.capabilities)
          self.proxy.new_har("test", options={'captureHeaders': True, 'captureContent': True})
          self.start_browser(display_size, implicitly_wait_seconds, browser_name)
  
      def __enter__(self):
          return self
  
      def __exit__(self, _type, value, trace):
          self.close()
  
      def start_browser(self, display_size, implicitly_wait_seconds=10, browser_name='chrome'):
          if browser_name == 'chrome':
              chrome_options = Options()
              # chrome_options.add_argument("--disable-extensions")
              chrome_options.add_experimental_option("excludeSwitches", ["ignore-certificate-errors"])
              chrome_options.add_argument("--ssl-version-max")
              chrome_options.add_argument("--start-maximized")
              chrome_options.add_argument('--proxy-server=%s' % self.proxy.proxy)
              chrome_options.add_argument('--ignore-certificate-errors')
              chrome_options.add_argument('--allow-insecure-localhost')
              chrome_options.add_argument('--ignore-urlfetcher-cert-requests')
              self.browser = webdriver.Chrome(os.path.dirname(os.path.realpath(__file__)) + "/chromedriver",
                                              chrome_options=chrome_options, desired_capabilities=self.capabilities)
              self.browser.implicitly_wait(implicitly_wait_seconds)
  </code></pre>