text: Title: browsingContextFn() .currentWindowGlobal is null on instapy
  Body: Hi there,
  
  I manage to access instagram via instapy but when instagram opens i get an browsing context error and it wont contiune. any idea?
  
  thank you
  
  
  /Library/Frameworks/Python.framework/Versions/3.9/bin/python3 /Applications/hello.py
  InstaPy Version: 0.6.12
   ._.  ._.  ._.  ._.  ._.  ._.  ._.  ._.  ._. 
  Workspace in use: "/Users/beccarose/InstaPy"
  OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
  INFO [2020-12-29 12:36:46] [bdtees_golfuk]  Session started!
  oooooooooooooooooooooooooooooooooooooooooooooooooooooo
  INFO [2020-12-29 12:36:46] [bdtees_golfuk]  -- Connection Checklist [1/2] (Internet Connection Status)
  INFO [2020-12-29 12:36:47] [bdtees_golfuk]  - Internet Connection Status: ok
  INFO [2020-12-29 12:36:47] [bdtees_golfuk]  - Current IP is "87.81.58.153" and it's from "United Kingdom/GB"
  INFO [2020-12-29 12:36:47] [bdtees_golfuk]  -- Connection Checklist [2/2] (Hide Selenium Extension)
  INFO [2020-12-29 12:36:47] [bdtees_golfuk]  - window.navigator.webdriver response: None
  INFO [2020-12-29 12:36:47] [bdtees_golfuk]  - Hide Selenium Extension: ok
  Cookie file not found, creating cookie...
  Traceback (most recent call last):
    File "/Applications/hello.py", line 4, in <module>
      session.login()
    File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/instapy/instapy.py", line 425, in login
      if not login_user(
    File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/instapy/login_util.py", line 362, in login_user
      dismiss_get_app_offer(browser, logger)
    File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/instapy/login_util.py", line 466, in dismiss_get_app_offer
      offer_loaded = explicit_wait(
    File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/instapy/util.py", line 1784, in explicit_wait
      result = wait.until(condition)
    File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/selenium/webdriver/support/wait.py", line 71, in until
      value = method(self._driver)
    File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/selenium/webdriver/support/expected_conditions.py", line 128, in __call__
      return _element_if_visible(_find_element(driver, self.locator))
    File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/selenium/webdriver/support/expected_conditions.py", line 415, in _find_element
      raise e
    File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/selenium/webdriver/support/expected_conditions.py", line 411, in _find_element
      return driver.find_element(*by)
    File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/selenium/webdriver/remote/webdriver.py", line 976, in find_element
      return self.execute(Command.FIND_ELEMENT, {
    File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/selenium/webdriver/remote/webdriver.py", line 321, in execute
      self.error_handler.check_response(response)
    File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/selenium/webdriver/remote/errorhandler.py", line 242, in check_response
      raise exception_class(message, screen, stacktrace)
  selenium.common.exceptions.WebDriverException: Message: TypeError: browsingContextFn().currentWindowGlobal is null