app/javascript/blacklight/checkbox_submit.js in blacklight-8.3.0 vs app/javascript/blacklight/checkbox_submit.js in blacklight-8.4.0

@@ -35,11 +35,11 @@
       return Promise.reject('response was not ok')
     }).then((json) => {
       this.labelTarget.removeAttribute('disabled')
       this.checkboxTarget.removeAttribute('disabled')
       this.updateStateFor(!this.checked)
-      document.querySelector('[data-role=bookmark-counter]').innerHTML = json.bookmarks.count
+      if (this.bookmarkCounter()) this.bookmarkCounter().innerHTML = json.bookmarks.count
     }).catch((error) => {
       this.handleError(error)
     })
   }
 
@@ -59,9 +59,13 @@
     return this.form.querySelector('[data-checkboxsubmit-target="checkbox"]')
   }
 
   get spanTarget() {
     return this.form.querySelector('[data-checkboxsubmit-target="span"]')
+  }
+
+  bookmarkCounter() {
+    return document.querySelector('[data-role="bookmark-counter"]')
   }
 
   handleError() {
     alert("Unable to save the bookmark at this time.")
   }