Input value doesn't display. How is that possible?

Question

This must be something utterly stupid that I\'ve done or am doing, but I have an input with a value attribute that simply isn\'t being displayed:

Answer 1

For me the problem was that I had multiple inputs with the same id. I could see the value in the field, but reading it via javascript gave an empty value because it was reading a different input with the same id - I was surprised that there was no javascript error, just could not read the values I could see in the form.