From a49a535e3e1e89146f8f26cb3ee88bf62f6d940b Mon Sep 17 00:00:00 2001
From: Emmanuel Garette <egarette@silique.fr>
Date: Mon, 9 Mar 2026 07:58:55 +0100
Subject: [PATCH] [tutorial v1.1_140] A variable with custom validation

---
 firefox/60-dns_over_https.yml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/firefox/60-dns_over_https.yml b/firefox/60-dns_over_https.yml
index 309c6534..8bd721b0 100644
--- a/firefox/60-dns_over_https.yml
+++ b/firefox/60-dns_over_https.yml
@@ -20,6 +20,11 @@ dns_over_https:  # DNS over HTTPS
   custom_dns_url:
     description: Custom DNS URL
     type: web_address
+    validators:
+      - jinja: |-
+          {{ _.custom_dns_url.startswith('http://') }}
+        return_type: boolean
+        description: must starts with 'https://' only
     disabled:
       jinja: |-
         {{ _.provider is propertyerror or _.provider != 'Custom' }}