>I used a desktop browser.

Ok, so that one, I assume the desktop browser did work as expected. It is then the mobile device which seems to not like something at the javascript level. For now, I do not have a workaround for that. But, I assume it is related to the timer. Nothing has been reported to that so far, even on a nationwide very big application I support which is also using the same code. And, over there, they use a lot of mobile devices. They might not use the same as you however. If someone can jump in this thread and let me know about other mobile devices if it works ok, that would be appreciated. One thing I would like you to try however is to try temporarily with another mobile browser, as suggested by another member. I know you like the one you are using right now. This is just to isolate the situation to know if that is common on the device or just the mobile browser.