document.addEventListener("click", function(e) {
let btn = e.target.closest(".w2dc-show-on-map");
if (!btn) return;
e.preventDefault();
let listing = btn.closest(".w2dc-listing-location");
if (!listing) return;
let link = listing.querySelector("h2 a");
if (link && link.href) {
window.location.href = link.href;
}
});
and then