Question:
I use a WixForm on my page and I have 4 hidden fields. There’s javascript which takes data out of get parameters of the url and puts it into those fields. Also some randomize content I set, gets filled into one of the forms to optimze later.
When I use the form, it 99% of the time fills out everything and also sends it to the table Wix fills for me. But when users fill and submit the form, it randomly works sometimes and sometimes not. It’s mainly a 80% not for my users and 20% working. But I cannot believe that they do not have javascript in their browser or something like that. Also, the 4 fields they fill get transmitted to the table Wix fills just normal… only the 4 other columns do not get filled. Any idea?
Product:
WixForms
What are you trying to achieve:
I want those 4 hidden fields which get filled, always filled.
What have you already tried:
Unhide the field, put them behind other things, but the point is, it works for me and some users… so it cannot be that wrong. 
Additional information:
I’m quite new to Wix, so, do you need any more information? Thank you!