How to keep the selenium session alive in heroku?

Question

I have deployed python app in heroku. The app is mainly working with selenium. Whenever i open the app it started new selenium session. I want to make happen in the same selenium session how is it possible? here is my chrome_options.

options = Options()
options.binary_location = os.environ.get("GOOGLE_CHROME_BIN")
options.add_argument("--disable-infobars")
options.add_argument("--disable-extensions")
options.add_argument("--headless")
options.add_argument("--no-sandbox")
options.add_argument('--single-process')
options.add_argument('--disable-gpu')
options.add_argument('--remote-debugging-port=9222')
options.add_argument('--disable-browser-side-navigation')
browser = webdriver.Chrome(options=options, executable_path=os.environ.get("CHROMEDRIVER_PATH"))
options.add_argument("--example-flag")

Procfile

web gunicorn app:app

Answer 1

It depends how you terminate your session

# close the browser window which is currently in focus.
webdriver.close()

# close the browser and terminates the session
webdriver.quit()

In the first case ( close() method) each execution opens a new tab while the Webdriver session is still active

Answer 2

OK here is the problem I think you haven't defined the workers. So By default Gunicorn start three workers which means three selenium session in your case so limit the workers to one and set the time out

web gunicorn app:app --workers=1 --timeout=50