JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://aframe.io/releases/0.8.2/aframe.min.js"></script>
<script>
AFRAME.registerComponent("foo", {
init: function() {
this.el.setAttribute("visible", localStorage.getItem("carVis"))
}
})
</script>
<a-scene>
  <a-box position="-1 0.5 -3" rotation="0 45 0" color="#4CC3D9" visible="2 === 1"></a-box>
    <a-box position="2 0.5 -3" rotation="0 45 0" color="#4CC3D9" foo></a-box>

</a-scene>

JavaScript

localStorage.setItem('carVis', 'true');