diff --git a/scm-webapp/src/main/resources/templates/repository-migration-restart.mustache b/scm-webapp/src/main/resources/templates/repository-migration-restart.mustache
index 5bda93c7c8..006cc77e2a 100644
--- a/scm-webapp/src/main/resources/templates/repository-migration-restart.mustache
+++ b/scm-webapp/src/main/resources/templates/repository-migration-restart.mustache
@@ -48,12 +48,12 @@
 {{$script}}
   <script>
     setInterval(function () {
-        const request = new XMLHttpRequest();
+        var request = new XMLHttpRequest();
 
         request.open('GET', '{{ contextPath }}/api/v2/', true);
 
         request.onload = function () {
-          if (this.readyState == 4 && this.status == 200 && this.response.toString().indexOf("_links") > 0) {
+          if (this.readyState === 4 && this.status === 200 && this.response.toString().indexOf("_links") > 0) {
             location.href = '{{ contextPath }}';
           }
         };
diff --git a/scm-webapp/src/main/resources/templates/repository-migration.mustache b/scm-webapp/src/main/resources/templates/repository-migration.mustache
index d322bfa42b..de4f59a441 100644
--- a/scm-webapp/src/main/resources/templates/repository-migration.mustache
+++ b/scm-webapp/src/main/resources/templates/repository-migration.mustache
@@ -90,12 +90,12 @@
 {{$script}}
 <script>
   document.addEventListener("DOMContentLoaded", function() {
-    const changeAllSelector = document.getElementById('changeAll');
+    var changeAllSelector = document.getElementById('changeAll');
     changeAllSelector.onchange = function () {
-      const strategySelects = document.getElementsByClassName('strategy-select');
-      console.log("selects:", strategySelects);
-      console.log("setting to:", changeAllSelector.value);
-      Array.prototype.forEach.call(strategySelects, s => s.value = changeAllSelector.value);
+      var strategySelects = document.getElementsByClassName('strategy-select');
+      for (var strategySelect of strategySelects) {
+        strategySelect.value = changeAllSelector.value;
+      }
     };
   });
 </script>