title: vuejs : how to preload image inside a component
body: <p>I have images inside a component not displayed at launch.
  When i show my component, my images are not displayed instantly, but are loaded. </p>
  
  <p>I would like to preload my images on the root app, to be instantly displayed when the component is active. </p>
  
  <p>How would you do that? </p>