Selenium needs a sleep before going to the next page

Question

I am currently learning Selenium, and I learned a lot. One thing the community said; is that you need avoiding thread.sleep as much as possible. Selenium uses implicit and e

Answer 1

I am guessing that the exception is raised after you've navigated to URL + "/mymp/verkopen/index.html" and started to take some action.

I am speculating that the main issue here is that your waitForLoad() method is not waiting for some Javascript, or other background task, to complete on the page that Login goes to first. So when you navigate to the next page, something is not yet completed, leaving your user authentication in a bad state. Perhaps you need to wait for some AJAX to complete after login before proceeding with your further navigation? Or it would be better to click on a link on that page to trigger the navigation to your target page (as a real user would), rather than directly entering the URL? You might find it helpful to discuss the actual behavior of the web application with developers.

As DebanjanB has pointed out, once you are on your target page you can then use WebDriverWait for the elements on the page where you are taking actions.