Is this same for an iframe embed

is this same for an i frame embed

To my understanding, you are looking to prepopulate a form that is embedded on your website using the Iframe Embed codes.

That would be possible. Please see my sample below.

https://shots.jotform.com/MikeG/screenshot/2106898-prepopulate-iframe-embed-form-test.html?name[first]=Mike&name[last]=G&email=mikeg@test.com&comments=Lorem%20ipsum%20dolor%20sit%20amet,%20consectetur%20adipiscing%20elit.

Let us know if you need any further assistance.