There seems to be a proper lazy-loaded image (with low-res + high-res) with a thumbnail (low-res) on top; and the thumbnail is removed with JS code. This is pr

There seems to be a proper lazy-loaded image (with low-res + high-res) with a thumbnail (low-res) on top; and the thumbnail is removed with JS code. This is probably meant as a fallback to look nicer on browsers which don't support lazy-loading, at the expense of breaking browsers which don't support JS or fail to execute it.