Selenium working with Chrome, but not headless Chrome

Question

I\'ve developed a couple of Python scripts using Selenium and, at first, PhantomJS. While heading toward automated downloads, I switched for (headed) Firefox (which worked)

Answer 1

refer https://github.com/SeleniumHQ/selenium/issues/4477 add below code

self.chrome_options = webdriver.ChromeOptions()
self.chrome_options.add_argument("--window-size=1920,1080")
self.chrome_options.add_argument("--disable-extensions")
self.chrome_options.add_argument("--proxy-server='direct://'")
self.chrome_options.add_argument("--proxy-bypass-list=*")
self.chrome_options.add_argument("--start-maximized")
self.chrome_options.add_argument('--headless')
self.chrome_options.add_argument('--disable-gpu')
self.chrome_options.add_argument('--disable-dev-shm-usage')
self.chrome_options.add_argument('--no-sandbox')
self.chrome_options.add_argument('--ignore-certificate-errors')
self.browser = webdriver.Chrome(options=self.chrome_options)

Answer 2

I had the same issue and setting the window size in conftest.py solved it. My code snippet:

@pytest.fixture
def chrome_options(chrome_options, pytestconfig):
    if pytestconfig.getoption('headless'):
        chrome_options.add_argument('--headless')
        chrome_options.add_argument("window-size=1920,1080")
    else:
        chrome_options.add_argument("start-maximized");
    return chrome_options

Answer 3

Headless Chrome does not support insecure certificates and hence, websites with insecure certificates does not open living it blank. You need to add capabilities as follow:

from selenium import webdriver
from selenium.webdriver import DesiredCapabilities
from selenium.webdriver.chrome.options import Options

chrome_options = Options()
chrome_options.add_argument("--headless")

capabilities = DesiredCapabilities.CHROME.copy()
capabilities['acceptSslCerts'] = True 
capabilities['acceptInsecureCerts'] = True

driver = webdriver.Chrome(chrome_options = chrome_options,executable_path='your path',desired_capabilities=capabilities)
driver.get("yourWebsite")

This will do the work.

Answer 4

For some if you remove the below, it would work.

driver.fullscreen_window()

Answer 5

Headless chrome may be faster on same machine than headed, try adding some wait before locating password element.

Answer 6

I had a same experience like you, and solved it by using xvfb and pyvirtualdisplay.

I use chromedrive=v2.3.1, chrome-browser=v60 and Selenium=3.4.3

In Headless chrome, some of script seems not to work as expected.

Please refer to vpassapera's comment in https://gist.github.com/addyosmani/5336747.

How about try it like below,

from pyvirtualdisplay import Display

display = Display(visible=0, size=(800, 600))
display.start()

# Do Not use headless chrome option
# options.add_argument('headless')

url = 'https://10.11.227.21/tmui/'
driver.get(url + "login.jsp")

html_source = driver.page_source
print(html_source)

blocStatus = WebDriverWait(driver,    TIMEOUT).until(EC.presence_of_element_located((By.ID, "username")))
inputElement = driver.find_element_by_id("username")
inputElement.send_keys('actualLogin')
inputElement = driver.find_element_by_id("passwd")
inputElement.send_keys('actualPassword')
inputElement.submit()

display.stop()

xvfb is required to use "pyvortualdisplay"

$ sudo apt-get install -y xvfb