js/index.js

@@ -10,6 +10,8 @@ function setEvents() {
     const heartEl = document.querySelector('body > h1 > span');
     heartEl.addEventListener('click', function() {
         const key = prompt('Introduce la clave');
+        console.log('key', key)
+        if (key === null) return 
         localStorage.setItem('vnKey', key);
     });