Image Has Loaded

To check if an image has successfully loaded, check its property naturalWidth. It is only set if the browser downloaded and displayed the image.

Here is an image that successfully loads.

<img
  id="loads"
  src="https://glebbahmutov.com/images/warming-stripes.png"
  width="400"
  height="50"
/>

cy.get('#loads')
  .should('be.visible')
  .and('have.prop', 'naturalWidth')
  .should('be.greaterThan', 0)

Watch the video Check If An Image Loads.