Change let to var

website/source/assets/javascripts/consul-connect/carousel.js

@@ -37,8 +37,8 @@ qs('.g-carousel .next')
   })
 
 // on dot click
-for (let i = 0; i < dots.length; i++) {
+for (var i = 0; i < dots.length; i++) {
   dots[i].addEventListener('click', function() {
     carousel.goTo(i)
   })
-}
+}