diff --git a/internal-api/js/api-settings.js b/internal-api/js/api-settings.js
index 28dab649..42591e5a 100644
--- a/internal-api/js/api-settings.js
+++ b/internal-api/js/api-settings.js
@@ -96,6 +96,24 @@ function generateToken(userId) {
     });
 }
 
+function markSuccess(id) {
+    $('#' + id + '-saving').addClass('hide');
+    $('#' + id + '-failure').addClass('hide');
+    $('#' + id + '-success').removeClass('hide');
+}
+
+function markSaving(id) {
+    $('#' + id + '-saving').removeClass('hide');
+    $('#' + id + '-failure').addClass('hide');
+    $('#' + id + '-success').addClass('hide');
+}
+
+function markFailure(id) {
+    $('#' + id + '-saving').addClass('hide');
+    $('#' + id + '-failure').removeClass('hide');
+    $('#' + id + '-success').addClass('hide');
+}
+
 function clearTokens(userId) {
     var heskPath = $('p#hesk-path').text();
     var endpoint = heskPath + 'internal-api/admin/api-authentication/';
diff --git a/internal-api/js/manage-custom-nav-elements.js b/internal-api/js/manage-custom-nav-elements.js
index 22aa9fc4..07e71460 100644
--- a/internal-api/js/manage-custom-nav-elements.js
+++ b/internal-api/js/manage-custom-nav-elements.js
@@ -94,9 +94,12 @@ $(document).ready(function() {
         $modal.find('#action-buttons').find('.save-button').attr('disabled', 'disabled');
 
         $.ajax({
-            method: method,
+            method: 'POST',
             url: url,
-            headers: { 'X-Internal-Call': true },
+            headers: {
+                'X-Internal-Call': true,
+                'X-HTTP-Method-Override': method
+            },
             data: JSON.stringify(data),
             success: function(data) {
                 if (id === -1) {
@@ -310,9 +313,12 @@ function bindDeleteButton() {
         var element = elements[$(this).parent().parent().find('[data-property="id"]').text()];
 
         $.ajax({
-            method: 'DELETE',
+            method: 'POST',
             url: heskUrl + 'api/index.php/v1-internal/custom-navigation/' + element.id,
-            headers: { 'X-Internal-Call': true },
+            headers: {
+                'X-Internal-Call': true,
+                'X-HTTP-Method-Override': 'DELETE'
+            },
             success: function() {
                 mfhAlert.success(mfhLang.text('custom_nav_element_deleted'));
                 loadTable();