Prepopulate fields based on another form stopped working

I am aware of the method to prepopulate fields based on another form. But that was exactly what stopped working. Turnt out that I used '!!' in stead of '//' in disabling the 'set.height' part of my iFrame jotform code, to fix the height on my WordPress page. Somehow, this made the whole form work fine, except for the prepopulating of fiels (???)

Fortunately, Google is full of people experiencing troubles, being supported by many of your colleagues! Really valuable information. Allows you to learn from another person's mistakes.

As far as I understand, the issue is related to your embedded form. Could you please share a link to us so we checked it? Also, we would appreciate if you can share steps to reproduce the problem.

We will wait for your reply. 

Thank you for your response, however i have solved it already. As I said, the !! marks, in stead of // caused the form to not prepopulate the fields.

I copied the iFrame code from the embed page in publish. In the code, I wanted to fix the height of the frame, rather than having it adjust to the screen size/resolution of someone's pc. Therefore, I inserted '!!' in front of the 'set.height' part in the code. Should have been '//' to be inserted. All of the form seemed to work fine, except for the prepopulation of fields.

Hope this is clear to you now.

Thank you for sharing your solution, we truly appreciate that!

I will make this thread public so it might help another fellow user.

Thank you1