Pardot Hidden Fields Compatible?

Hello Team!

I’m working on creating a popup for a button on a landing page and am running into some trouble. Our forms are built using Pardot, and in order to pass the hidden fields, I must add an additional script to the code that the plugin to this point has not been able to process.

For example, the HTML of the form is:
<iframe src=”https://go.quantivate.com/l/824713/2021-11-04/6tk2p&#8221; width=”100%” height=”800″ type=”text/html” frameborder=”0″ allowTransparency=”true” style=”border: 0″></iframe>

BUT we normally use this additional script to pass the hidden fields along:

<noscript>
<iframe src=" https://go.quantivate.com/l/824713/2021-11-04/6tk2p" width="100%" height=“875” type="text/html" frameborder="0" allowTransparency="true" style="border: 0"></iframe>
</noscript>

<div id="pardotform99web"></div>

<script type="text/javascript">
var form = ' https://go.quantivate.com/l/824713/2021-11-04/6tk2p';
var params = window.location.search;
var thisScript = document.getElementById("pardotform99web");
var iframe = document.createElement('iframe');

iframe.setAttribute('src', form + params);
iframe.setAttribute('width', '100%');
iframe.setAttribute('height', 875);
iframe.setAttribute('type', 'text/html');
iframe.setAttribute('frameborder', 0);
iframe.setAttribute('allowTransparency', 'true');
iframe.style.border = '0';

thisScript.parentElement.replaceChild(iframe, thisScript);
</script>

Is anyone aware of how to pass this script along as intended?

Thanks for your help!