My experiment just won’t come to an end

Hello everyone,

I’m currently carrying out a study that will need to be conducted online. So I’ve coded everything in HTML. It’s all working quite well (at least I’ve managed to sort out all the minor issues), apart from one thing. When I reach the end, my very last inline element never displays. After the penultimate one (which is a test to check if the operation worked), there’s a logger, then the final inline. But after the penultimate one, there’s always a blank page.

The most frustrating thing is that when I disable the last two sequences, it works. The study reaches its end and saves the data.  

I simply cannot understand why the presence of the sequences above would prevent a simple ‘Submit’ button from working. 

So I’m calling on your expertise, because I’m completely at a loss.

Thank you