Fallback d'image HTML
<img
src="image.url/that-may-or-may-not-exist.jpg"
onerror="this.onerror=null;this.src='https://fallback.url/for/image.jpg'"
/>
GutoTrosla
<img
src="image.url/that-may-or-may-not-exist.jpg"
onerror="this.onerror=null;this.src='https://fallback.url/for/image.jpg'"
/>