Autofill popup fields - personalizery

script popup.js

    <script type="text/javascript">
      function personalizeryInit() {
        let params = new URL(document.location).searchParams;
        let name = params.get("firstname");
        let email = params.get("email");
        document.querySelector("#form-field-field_8fd15b6").value = name;
        document.querySelector("#form-field-email").value = email;
      }
      personalizeryInit();
    </script>