srcset using sizes and DPR. Files live under
assets/servd-demo/ (same scene at three widths); production Servd URLs use
crop=focalpoint + fp-x / fp-y for CMS-driven crops.
https://made-byshape.transforms.svdcdn.com/.../photo.jpg
?w=400 &h=300 &q=80 &fm=webp
&fit=crop &crop=focalpoint &fp-x=0.5 &fp-y=0.5
Images are bundled locally so this works offline and when opening the HTML file directly
(file://). Remote placeholder CDNs often break that case or block hotlinking.