See https://drafts.csswg.org/css-images-4/#typedef-image-set-option Currently only background-image: image-set( "foo.png" 1x, url("foo-2x.png") 2x) is supported. Need to support: image-set( "foo.png" 1x, url("foo-2x.png") 2x, "foo-print.png" 600dpi );
I'm assuming that there are WPT that test this?
*** This bug has been marked as a duplicate of bug 100120 ***