import wixWindowFrontend from "wix-window-frontend"; $w.onReady(function () { $w("#html1").onMessage((event) => { const message = event.data || {}; if (message.type !== "tonb-scroll") return; const y = Number(message.y); if (!Number.isFinite(y)) return; wixWindowFrontend.scrollTo(0, Math.max(0, Math.round(y))); }); });