I want to pass all parameters from the querystring to an iframe on my page using JavaScript. I created a <div if="zohoframe"> before which the iframe should be inserted. This JavaScript should do the magic but it shows neither an error nor the iframe.

<script type="text/javascript">
const queryString = window.location.search;

var makediv = document.createElement("div");
makediv.innerHTML = '<iframe loading="lazy" width="100%" height="750px" src="SOMEURL' + queryString + '" frameborder="0" allowfullscreen=""> </iframe>';

var getRef = document.getElementById("zohoframe");
var parentDiv = getRef.parentNode;

parentDiv.insertBefore(makediv, getRef);
</script>