onmessage = (event) => {
if(event.data === "next" || event.data === "go" || event.data === "restart") { setTimeout(() => postMessage("show next"), 5000); }
};
onmessage = (event) => {
if(event.data === "next" || event.data === "go" || event.data === "restart") { setTimeout(() => postMessage("show next"), 5000); }
};