URL of a low-quality image to display and blur before HQ image is loaded

[Sampath-Lokuge]

Feature request:

URL of a low-quality image to display and blur before HQ image is loaded and displayed instead of the loader icon.

Like this:

Note: There is a module for this. But it doesn't give caching feature. That is the huge issue of that. please see here.

[Gargamil]

Currently working on this. Maybe setting fallbackAsPlaceholder=true and fallback=(URL OF SMALL IMAGE WITH LOW QUALITY AND BLUR) is the first step towards this.

To pretend page reflows see: https://www.codecaptain.io/blog/web-development/responsive-images-and-preventing-page-reflow/474