diff --git a/wagtail/wagtailusers/static_src/wagtailusers/js/group-form.js b/wagtail/wagtailusers/static_src/wagtailusers/js/group-form.js
new file mode 100644
index 000000000..e2773d66b
--- /dev/null
+++ b/wagtail/wagtailusers/static_src/wagtailusers/js/group-form.js
@@ -0,0 +1,13 @@
+$(function() {
+    buildExpandingFormset('id_page_permissions', {
+        'onInit': function(index) {
+            var deleteInputId = 'id_page_permissions-' + index + '-DELETE';
+            var childId = 'inline_child_page_permissions-' + index;
+            $('#' + deleteInputId + '-button').click(function() {
+                /* set 'deleted' form field to true */
+                $('#' + deleteInputId).val('1');
+                $('#' + childId).fadeOut();
+            });
+        }
+    });
+});
diff --git a/wagtail/wagtailusers/templates/wagtailusers/groups/create.html b/wagtail/wagtailusers/templates/wagtailusers/groups/create.html
index 9dc553834..b5712e589 100644
--- a/wagtail/wagtailusers/templates/wagtailusers/groups/create.html
+++ b/wagtail/wagtailusers/templates/wagtailusers/groups/create.html
@@ -33,21 +33,5 @@
 {% endblock %}
 
 {% block extra_js %}
-    {% include "wagtailadmin/pages/_editor_js.html" %}
-
-    <script>
-        $(function() {
-            buildExpandingFormset('id_page_permissions', {
-                'onInit': function(index) {
-                    var deleteInputId = 'id_page_permissions-' + index + '-DELETE';
-                    var childId = 'inline_child_page_permissions-' + index;
-                    $('#' + deleteInputId + '-button').click(function() {
-                        /* set 'deleted' form field to true */
-                        $('#' + deleteInputId).val('1');
-                        $('#' + childId).fadeOut();
-                    });
-                }
-            });
-        });
-    </script>
+    {% include "wagtailusers/groups/includes/group_form_js.html" %}
 {% endblock %}
diff --git a/wagtail/wagtailusers/templates/wagtailusers/groups/edit.html b/wagtail/wagtailusers/templates/wagtailusers/groups/edit.html
index 5c9eb2414..ddf76625a 100644
--- a/wagtail/wagtailusers/templates/wagtailusers/groups/edit.html
+++ b/wagtail/wagtailusers/templates/wagtailusers/groups/edit.html
@@ -41,21 +41,5 @@
 {% endblock %}
 
 {% block extra_js %}
-    {% include "wagtailadmin/pages/_editor_js.html" %}
-
-    <script>
-        $(function() {
-            buildExpandingFormset('id_page_permissions', {
-                'onInit': function(index) {
-                    var deleteInputId = 'id_page_permissions-' + index + '-DELETE';
-                    var childId = 'inline_child_page_permissions-' + index;
-                    $('#' + deleteInputId + '-button').click(function() {
-                        /* set 'deleted' form field to true */
-                        $('#' + deleteInputId).val('1');
-                        $('#' + childId).fadeOut();
-                    });
-                }
-            });
-        });
-    </script>
+    {% include "wagtailusers/groups/includes/group_form_js.html" %}
 {% endblock %}
diff --git a/wagtail/wagtailusers/templates/wagtailusers/groups/includes/group_form_js.html b/wagtail/wagtailusers/templates/wagtailusers/groups/includes/group_form_js.html
new file mode 100644
index 000000000..d494ce946
--- /dev/null
+++ b/wagtail/wagtailusers/templates/wagtailusers/groups/includes/group_form_js.html
@@ -0,0 +1,13 @@
+{% load static compress %}
+<script>
+    window.chooserUrls = {
+        'pageChooser': '{% url "wagtailadmin_choose_page" %}'
+    };
+</script>
+
+{% compress js %}
+    <script src="{% static 'wagtailadmin/js/page-chooser.js' %}"></script>
+    <script src="{% static 'wagtailadmin/js/expanding_formset.js' %}"></script>
+    <script src="{% static 'wagtailadmin/js/modal-workflow.js' %}"></script>
+    <script src="{% static 'wagtailusers/js/group-form.js' %}"></script>
+{% endcompress %}