getting TimeoutException when using expected_conditions in heroku

Question

I have a selenium robot that worked perfectly locally but on heroku TimeoutException raises whenever its on a expected_condition (element_to_be_clickable, visibility_of_element_located and presence_of_element_located). Anyone knows how to fix this problem in heroku. here is an example where I used expected_conditions

element = WebDriverWait(driver, 10).until(EC.element_to_be_clickable((By.XPATH, "//button[contains(@class, 'productlistning__btn')]")))

and the chrome arguments that I used in my code:

chrome_options = Options()
chrome_options.binary_location = os.environ.get("GOOGLE_CHROME_BIN")
chrome_options.add_argument("--headless")
chrome_options.add_argument("--disable-dev-shm-usage")
chrome_options.add_argument("--start-maximized")
chrome_options.add_argument("--no-sandbox")
driver = webdriver.Chrome(executable_path=os.environ.get("CHROMEDRIVER_PATH"), options=chrome_options)

Answer 1

I guess you didn't define the screen size for the driver while in headless mode the default screen size is 800,600.
So, to make your Selenium code working try setting the screen size to maximal or 1920,1080. As following:

from selenium.webdriver.chrome.options import Options

options = Options()
options.add_argument("--headless")
options.add_argument("window-size=1920,1080")

Or

options = Options()
options.add_argument("start-maximized")