From dface10ca7474bfe6c73a85f2e0dcf42672367de Mon Sep 17 00:00:00 2001
From: Emmanuel Garette <egarette@silique.fr>
Date: Fri, 7 Nov 2025 06:37:47 +0100
Subject: [PATCH] [tutorial 083] A variable with custom validation

---
 firefox/60-dns_over_https.yml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/firefox/60-dns_over_https.yml b/firefox/60-dns_over_https.yml
index 6ce2c7ef..3a57e006 100644
--- a/firefox/60-dns_over_https.yml
+++ b/firefox/60-dns_over_https.yml
@@ -20,6 +20,12 @@ dns_over_https:  # DNS over HTTPS
   custom_dns_url:
     description: Custom DNS URL
     type: web_address
+    validators:
+      - jinja: |-
+          {% if dns_over_https.custom_dns_url.startswith('http://') %}
+            only https is allowed
+          {% endif %}
+        description: must starts with 'https://' only
     disabled:
       jinja: |-
         {% if _.provider is propertyerror or _.provider != 'Custom' %}