lazy load doesn't do anything on base64 encoded images since they are loaded as part of the HTML. Only works for additional requests.

distribusi.go

@@ -576,10 +576,10 @@ func getHref(c *cli.Context, fpath string, mtype string) (bool, string, error) {
 			thumb, err := genThumb(c, fpath, caption)
 			if err != nil {
 				logrus.Debugf("failed to generate thumbnail for %s, showing original image", fpath)
-				href = fmt.Sprintf("<img class='%s' src=\"%s\" />", stype, fname)
+				href = fmt.Sprintf("<img class='%s' loading='lazy' src=\"%s\" />", stype, fname)
 			} else {
 				href = fmt.Sprintf(
-					"<figure><a href=\"%s\"><img class='thumbnail' loading='lazy' src='data:image/jpg;base64,%s'></a><figcaption>%s</figcaption></figure>",
+					"<figure><a href=\"%s\"><img class='thumbnail' src='data:image/jpg;base64,%s'></a><figcaption>%s</figcaption></figure>",
 					fname, thumb, caption,
 				)
 			}