app/assets/javascripts/spree/backend/taxons.js in spree_backend-4.3.3 vs app/assets/javascripts/spree/backend/taxons.js in spree_backend-4.4.0.rc1

@@ -1,7 +1,7 @@
 /* global productTemplate */
-$(function () {
+document.addEventListener("spree:load", function() {
   window.productTemplate = Handlebars.compile($('#product_template').text())
   var taxonProducts = $('#taxon_products')
   var taxonId = $('#taxon_id')
 
   var el = document.getElementById('taxon_products')
@@ -12,24 +12,27 @@
       animation: 550,
       easing: 'cubic-bezier(1, 0, 0, 1)',
       swapThreshold: 0.9,
       forceFallback: true,
       onEnd: function (evt) {
-        var classificationId = evt.item.getAttribute('data-classification-id')
-        var newIndex = evt.newIndex
-        return $.ajax({
-          url: Spree.routes.classifications_api_v2 + '/' + classificationId.toString() + '/reposition',
-          headers: Spree.apiV2Authentication(),
-          method: 'PUT',
-          dataType: 'json',
-          data: {
-            classification: {
-              position: newIndex
-            }
-          }
-        })
+        handleClassificationReposition(evt)
       }
     })
+  }
+
+  function handleClassificationReposition(evt) {
+    var classificationId = evt.item.getAttribute('data-classification-id')
+    var data = {
+      classification: {
+        position: parseInt(evt.newIndex, 10) + 1
+      }
+    }
+    var requestData = {
+       uri: Spree.routes.classifications_api_v2 + '/' + classificationId,
+       method: 'PATCH',
+       dataBody: data,
+    }
+    spreeFetchRequest(requestData)
   }
 
   if (taxonId.length > 0) {
     taxonId.select2({
       placeholder: Spree.translations.find_a_taxon,