What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
I used explorer instead and it works just fine,.
JotForm Support Manager
Very glad to know the issue was sorted out by yourself. Do not hesitate to contact us any time if you need it.
Sorry, for me, the problem is still not resolved.
I think I mentioned it somewhere - it will work in IE if you click on "Show ALL Content" - which means that both secure and non-secure contents are shown.
This shows that something is not right, esp. if Facebook requires SSL to be used and if Jotform codes are not SSL-compatible, then the form is not loaded.
What I am trying to describe was also similarly raised by a WordPress user, for a similar problem - Google Maps being posted in Facebook pages. You can read more about this Wordpress finding here: https://wordpress.org/support/topic/issues-with-https-and-google-maps
It describes the hosting site not liking the mix of encrypted and unencrypted content.