From 0f83e151515badef292f1f231c561dce47f76b85 Mon Sep 17 00:00:00 2001
From: Guy Sartorelli <36352093+GuySartorelli@users.noreply.github.com>
Date: Thu, 3 Oct 2024 10:59:59 +1300
Subject: [PATCH] ENH Use symfony/validation logic (#338)

---
 src/Models/ExternalLink.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/Models/ExternalLink.php b/src/Models/ExternalLink.php
index 3ff49ddc..306519e2 100644
--- a/src/Models/ExternalLink.php
+++ b/src/Models/ExternalLink.php
@@ -28,6 +28,7 @@ public function getCMSFields(): FieldList
     {
         $this->beforeUpdateCMSFields(function (FieldList $fields) {
             $field = UrlField::create('ExternalUrl', _t(__CLASS__ . '.EXTERNAL_URL_FIELD', 'External URL'));
+            $field->setAllowedProtocols(['http', 'https']);
             $field->setDescription(_t(
                 __CLASS__ . '.EXTERNAL_URL_FIELD_DESCRIPTION',
                 'The URL must start with either http:// or https://'