Hidden field not being passed to form results

Hello @Mo_the_Pirate 

you will need to use embed SDK directly via its JavaScript API with some custom code:

<div id="my-button" style=""><a>Get Started</a></div>
<link rel="stylesheet" href="//embed.typeform.com/next/css/popup.css" />
<script src="//embed.typeform.com/next/embed.js"></script>
<script>
document.querySelector('#my-button').onclick = () => {

  // retrieve gclid value
  const [, cookieGclid] = document.cookie.match(/gclid=([^;]+)/) || []
  const urlGclid = new URLSearchParams(window.location.search).get('gclid')

  // prioritize value from URL, then cookie or use default if neither
  const gclid = urlGclid ?? cookieGclid ?? 55

  window.tf.createPopup('Oag6s5yd', {
    size: 100,
    iframeProps: { title: 'DMA 1' },
    transitiveSearchParams: ['wbraid', 'fbclid', 'msclkid'],
    hidden: { gclid }
  }).open()
}
</script>