From e69480bfb7fb03926cd7e4f6ac8393df84eae1fd Mon Sep 17 00:00:00 2001
From: Baptiste Wojtkowski <baptiste.wojtkowski@biblibre.com>
Date: Wed, 14 Aug 2024 10:55:16 +0200
Subject: [PATCH] Bug 37642: Generated letter should use https in header

_wrap_html returns a header referring to http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd and http://www.w3.org/1999/xhtml. These should be https links.

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Paul Derscheid <paul.derscheid@lmscloud.de>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>
(cherry picked from commit e27c3a6090523549509ced1cc3d5f27d9be0e7aa)
Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>
---
 C4/Letters.pm | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/C4/Letters.pm b/C4/Letters.pm
index 273b1fef21..10c7e2ee9a 100644
--- a/C4/Letters.pm
+++ b/C4/Letters.pm
@@ -1569,8 +1569,8 @@ sub _wrap_html {
     $css = qq{<link rel="stylesheet" type="text/css" href="$css">} if $css;
     return <<EOS;
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
-    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<html lang="en" xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">
+    "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html lang="en" xml:lang="en" xmlns="https://www.w3.org/1999/xhtml">
 <head>
 <title>$title</title>
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />