cup/storage/public/app.js

console.log("Start Goffee app");

let elem = document.querySelector('#signout');
if (elem) {
document.getElementById("signout").onclick = (_event) => {  
	fetch('/signout').then(response => response.json())
		.then(data => {
		    if (data['message'] == "signed out successfully") {
				// Refresh the page
				location.reload();				
			}
		})
  };
}