Google forms hidden fields

formfields.html

<!-- ADD GOOGLEFORM-RELATED INPUTS HERE, ALL HIDDEN. 
THEY'LL BE GIVEN VALUES IN THE SCRIPT BELOW
THE "NAME" AND "ID" PARAMETERS MUST CORRESPOND TO 
THOSE IN THE SOURCE OF THE GOOGLE-HOSTED LIVE FORM-->
 
<!-- QUESTION 1 -->
<input type="hidden" name="entry.338471973" value="" id="entry_338471973">
 
<!-- QUESTION 2: LAT/LONG -->
<input type="hidden" name="entry.80388879" value="" id="entry_80388879">
<input type="hidden" name="entry.510592791" value="" id="entry_510592791">

Did anybody get anywhere with this. I am also investigating how to add hidden fields.

I am also interested if anyone, could point me in the direction of how I would change an input type to hidden in google forms.

I have tried researching this now for an hour. I don't think it's possible any more. There are multiple "easy" examples on the internet but most point to old Forms stuff. This is a popular link that doesn't work any more: https://morningstudio.com.au/blog/2013/06/how-to-style-google-forms/

I traced some of the issues to the final script tab that refers to freebird. It gives an "Access-Control-Allow-Origin" error, but even if you manually copy the Javascript to localhost it doesn't work, all kinds of new exceptions ensue.

So, for now at least, I don't believe it's possible to do using a prior method.