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Selenium WebDriver intermittently times out waiting for elements in a complex Angular application with Chrome 120

👀 Views: 40 đŸ’Ŧ Answers: 1 📅 Created: 2025-07-24
selenium webdriver python angular Python

Could someone explain I've been struggling with this for a few days now and could really use some help... I'm working with an scenario where Selenium WebDriver is intermittently timing out when trying to interact with certain elements in my complex Angular application. Specifically, I'm using the Chrome 120 browser with the latest ChromeDriver. I have implemented explicit waits for elements using WebDriverWait, but I still encounter a `TimeoutException` under certain conditions. Here's the relevant code snippet: ```python from selenium import webdriver from selenium.webdriver.common.by import By from selenium.webdriver.support.ui import WebDriverWait from selenium.webdriver.support import expected_conditions as EC # Set up the Chrome WebDriver options = webdriver.ChromeOptions() options.add_argument('--headless') # Running headless, but scenario occurs in GUI as well driver = webdriver.Chrome(options=options) try: driver.get('http://my-angular-app.com') # Wait for a specific element to become clickable wait = WebDriverWait(driver, 10) element = wait.until(EC.element_to_be_clickable((By.CSS_SELECTOR, '.my-button'))) element.click() except Exception as e: print(f'behavior occurred: {e}') finally: driver.quit() ``` In my application, the button I am trying to click only shows up after some dynamic content loads, and it seems like the loading time can vary significantly. I've tried increasing the wait time, but the question continues. Sometimes it works flawlessly, while other times it throws the timeout exception with the message: `selenium.common.exceptions.TimeoutException: Message: Wait timed out after 10 seconds`. I've also tried using `EC.visibility_of_element_located` instead of `EC.element_to_be_clickable`, but that hasn't resolved the scenario either. I suspect there might be some underlying issues with how Angular manages its rendering and change detection cycles, but I'm unsure how to handle this in Selenium. Any insights or best practices to ensure that the WebDriver is able to wait appropriately for the elements in such a dynamic environment? Am I missing a crucial aspect of the setup or the wait strategy? For context: I'm using Python on macOS. The stack includes Python and several other technologies. Is there a better approach? The project is a microservice built with Python. Could someone point me to the right documentation?