Hi I am embedding a Google Forms in a website, through .
I want to add a callback function to the form, so that I can now that the user submitted it, and I can close the form window (or display a button to close it).
How to do it?
I have not found such a function in GDoc Form. I saw there is a script editor, but could not make it work for me, seems overkill.
I was adding a button to my html page that is always displayed atop of the form, but actually I would like it to appear only after the user completed the form.
-- Edited
Tried iFrame src change event detection?
but still I undergo
Uncaught DOMException: Blocked a frame with origin
