JotForm UTM tracking via iframe embed
Copy paste the embed code from JotForm to your WordPress
Then, place the followin snippet in your page
<script>
setTimeout(() => {
if (typeof(utms_js) == 'object'){
var iframeParams = [];
iframeParams.push( jQuery.param(utms_js) )
var src = ifr.src;
ifr.src = src + "?" + iframeParams.join('&');
}
}, "500");
</script>