diff --git a/photo21/templates/base.html b/photo21/templates/base.html
index 5cf6a7d..d5ac6d9 100644
--- a/photo21/templates/base.html
+++ b/photo21/templates/base.html
@@ -10,7 +10,7 @@ SPDX-License-Identifier: GPL-3.0-or-later
 <head>
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta http-equiv="Content-Security-Policy" content="default-src 'self'; img-src 'self' data:; script-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline'; font-src 'self'; frame-ancestors 'none'">
+    <meta http-equiv="Content-Security-Policy" content="default-src 'self'; img-src 'self' data:; script-src 'self'; style-src 'self' 'unsafe-inline'; font-src 'self'">
     <meta http-equiv="Referrer-Policy" content="no-referrer">
     <title>{% block title %}{{ title }}{% endblock title %} - {{ request.site.name }}</title>
     <meta name="description" content="{% trans "The ENS Paris-Saclay pictures server." %}">
