I’ve hit a snag with my Selenium tests. They work great on my local machine using Chrome, but when I run them on a Jenkins Windows node with a headless browser, I keep getting org.openqa.selenium.ElementNotVisibleException.
Here’s what I’ve tried so far:
- Double-checked that the element is actually visible on the page
- Added wait times and sleeps to make sure the page loads fully
But no luck. The tests still fail on Jenkins, even though they pass locally. Any ideas what might be causing this? Is there something special I need to do for headless browsers on Jenkins?
I’m pretty stumped here. Has anyone run into similar issues with Selenium tests behaving differently in headless mode versus regular browsers? Any tips or tricks would be super helpful!
I’ve encountered similar issues with Selenium tests on Jenkins. One thing to consider is that headless browsers can render pages differently, especially when it comes to dynamic content or JavaScript-heavy sites. Have you tried setting a specific window size for your headless browser? Sometimes elements that are visible on your local machine might be off-screen or not fully rendered in headless mode.
Another approach that’s worked for me is to use explicit waits instead of sleep commands. Try using WebDriverWait with ExpectedConditions to ensure the element is not just present, but actually visible and clickable before interacting with it.
Lastly, it might be worth checking if there are any JavaScript errors in the console when running headless. These can sometimes prevent elements from becoming visible or interactable. You can capture console logs in your test setup to investigate further.
hey samuel, had similar headaches. try increasing timeouts for element visibility. also, check if ur jenkins node has latest chromedriver matching ur chrome version. sometimes outdated drivers cause weird visibility issues in headless mode. if nothing works, consider using selenoid or zalenium for more consistent test runs across envs. good luck!
I’ve been down this road before, and it can be pretty frustrating. One thing that saved my bacon was switching to using Firefox in headless mode instead of Chrome. For some reason, Firefox seemed to handle element visibility more consistently across environments.
Another trick that helped was adding some JavaScript execution before interacting with elements. Something like:
((JavascriptExecutor) driver).executeScript("arguments[0].scrollIntoView(true);", element);
This forces the browser to scroll to the element, which can sometimes trigger visibility in headless mode.
Also, don’t forget to check your CSS. Sometimes elements are hidden by default and only shown with certain classes or styles that might not be applying correctly in the headless environment. Inspecting the element’s computed styles in both environments can reveal discrepancies.
Lastly, if all else fails, you might need to resort to using Xvfb to run a virtual display. It’s a bit of a hassle to set up, but it can solve a lot of these weird headless issues.