Dear maintainers: I found eww fails to show card-images which is described in the following web page: https://www.geeksforgeeks.org/why-card-images-use-data-src-not-src-for-image-in-bootstrap-4/ For example, if you open following page with eww & firefox, you will notice the differences: http://www.interdb.jp/pg/pgsql05.html I modified shr.el a little bit to support "data-src" attribute, so eww can display card-images properly. Hope it helps. Regards yc