Basic placeholder property is currently supported for <NuxtImg> (via #477).

Usage: This will auto-generate a URL from same source and 10x10 dimensions:

<nuxt-img src=".." placeholder>

It is also possible to give a custom placeholder (data)URL as a string or an array [width, height, quality] to customize URL generation behavior.

The original image will be loaded during hydration and after mounted.

Future enhancements:

• Fetch and inline placeholder as data: url
• Support smoother blurry versions when possible (depends on provider)
• Start loading images in parallel to hydration.