title: Python Selenium Chromedriver not working with --headless option
body: <p>I am running chromedriver to try and scrape some data off of a website. Everything works fine without the headless option. However, when I add the option the webdriver takes a very long time to load the url, and when I try to find an element (that is found when run without --headless), I receive an error.</p>
  
  <p>Using print statements and getting the html after the url "loaded", I find that there is no html, it's empty (See in output below).</p>
  
  <pre class="lang-py prettyprint-override"><code>class Fidelity:
      def __init__(self):
          self.url = 'https://eresearch.fidelity.com/eresearch/gotoBL/fidelityTopOrders.jhtml'
          self.options = Options()
          self.options.add_argument("--headless")
          self.options.add_argument("--window-size=1500,1000")
          self.driver = webdriver.Chrome(executable_path='.\\dependencies\\chromedriver.exe', options = self.options)
          print("init")
  
      def initiate_browser(self):
          self.driver.get(self.url)
          time.sleep(5)
          script = self.driver.execute_script("return document.documentElement.outerHTML")
          print(script)
          print("got url")
  
      def find_orders(self):
          wait = WebDriverWait(self.driver, 15)
          data= wait.until(ec.visibility_of_element_located((By.CSS_SELECTOR, '[id*="t_trigger_TSLA"]'))) #ERROR ON THIS LINE
  </code></pre>
  
  <p>This is the entire output:</p>
  
  <pre><code>init
  &lt;html&gt;&lt;head&gt;&lt;/head&gt;&lt;body&gt;&lt;/body&gt;&lt;/html&gt;
  url
  Traceback (most recent call last):
    File "C:\Users\Zachary\Documents\Python\Tesla Stock Info\Scraper.py", line 102, in &lt;module&gt;
      orders = scrape.find_tesla_orders()
    File "C:\Users\Zachary\Documents\Python\Tesla Stock Info\Scraper.py", line 75, in find_tesla_orders
      tesla = self.driver.find_element_by_xpath("//a[@href='https://qr.fidelity.com/embeddedquotes/redirect/research?symbol=TSLA']")
    File "C:\Program Files (x86)\Python37-32\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 394, in find_element_by_xpath
      return self.find_element(by=By.XPATH, value=xpath)
    File "C:\Program Files (x86)\Python37-32\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 978, in find_element
      'value': value})['value']
    File "C:\Program Files (x86)\Python37-32\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 321, in execute
      self.error_handler.check_response(response)
    File "C:\Program Files (x86)\Python37-32\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 242, in check_response
      raise exception_class(message, screen, stacktrace)
  selenium.common.exceptions.NoSuchElementException: Message: no such element: Unable to locate element: {"method":"xpath","selector":"//a[@href='https://qr.fidelity.com/embeddedquotes/redirect/research?symbol=TSLA']"}
    (Session info: headless chrome=74.0.3729.169)
    (Driver info: chromedriver=74.0.3729.6 (255758eccf3d244491b8a1317aa76e1ce10d57e9-refs/branch-heads/3729@{#29}),platform=Windows NT 10.0.17763 x86_64)
  </code></pre>
  
  <p>New error with updated code:</p>
  
  <pre><code>init
  &lt;html&gt;&lt;head&gt;&lt;/head&gt;&lt;body&gt;&lt;/body&gt;&lt;/html&gt;
  url
  Traceback (most recent call last):
    File "C:\Users\Zachary\Documents\Python\Tesla Stock Info\Scraper.py", line 104, in &lt;module&gt;
      orders = scrape.find_tesla_orders()
    File "C:\Users\Zachary\Documents\Python\Tesla Stock Info\Scraper.py", line 76, in find_tesla_orders
      tesla = wait.until(ec.visibility_of_element_located((By.CSS_SELECTOR, '[id*="t_trigger_TSLA"]')))
    File "C:\Program Files (x86)\Python37-32\lib\site-packages\selenium\webdriver\support\wait.py", line 80, in until
      raise TimeoutException(message, screen, stacktrace)
  selenium.common.exceptions.TimeoutException: Message: 
  </code></pre>
  
  <p>I have tried finding the answer to this through google but none of the suggestions work. Is anyone else having this issue with certain websites? Any help appreciated.</p>
  
  <h2>Update</h2>
  
  <p>This script still does not work unfortunately, the webdriver is not loading the page correctly for some reason while headless, even though everything works perfectly without running this using the headless option.</p>