application.js in blacklight-spotlight-2.3.2

- old
+ new

@@ -25,9 +25,10 @@
 //= require clipboard
 //= require leaflet
 //= require leaflet-iiif
 //= require Leaflet.Editable
 //= require Path.Drag
+//= require MutationObserver
 // Provide AMD module support
 //= require almond
 //= require polyfill.min.js
 //= require_tree .