Capture incoming URL Parameters, then pass to iFrame Src with Javascript
This little snippet should do, here all you have to do is grab the bit after ? as a string and append it to the iframe source.
var loc = window.location.toString(), params = loc.split('?')[1], iframe = document.getElementById('myIframe');iframe.src = iframe.src + '?' + params;
Just use window.location.search.
const iframe = document.getElementById('frame');iframe.src = iframe.src + window.location.search;