I’m wondering if anyone has a recommendation for a stack that can register when a user opens the page, starts a timer, and closes the window in a given time. I’m looking to create some online quizzes for teaching, and would like to put a time limit on them. So for example, if they have 20 minutes to do the quiz, there might be a countdown clock, then the page closes if they don’t submit their answers in time.
I’ve used Tardis by Joe Workman in the past, but that seems more for restricting the actual time that a page will display. Handy, and I use it often, but not exactly what I need in this case.
Let me know if anyone has heard of such a thing.