From 1b68e7caa917207c0f91a737ad2f07f944a87bc9 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Tim=20D=C3=BCsterhus?= <duesterhus@woltlab.com>
Date: Thu, 22 Apr 2021 15:14:57 +0200
Subject: [PATCH] Set 'loading="lazy"' for regular avatars

This is safe and will not cause FOUC, because avatars already have an explicit
width and height specified. I confirmed that the change works correctly in
Firefox 88.

see #3980
---
 .../install/files/lib/data/user/avatar/UserAvatar.class.php     | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/wcfsetup/install/files/lib/data/user/avatar/UserAvatar.class.php b/wcfsetup/install/files/lib/data/user/avatar/UserAvatar.class.php
index 9fff8fc017..b60e9596f3 100644
--- a/wcfsetup/install/files/lib/data/user/avatar/UserAvatar.class.php
+++ b/wcfsetup/install/files/lib/data/user/avatar/UserAvatar.class.php
@@ -115,7 +115,7 @@ class UserAvatar extends DatabaseObject implements IUserAvatar, ISafeFormatAvata
      */
     public function getImageTag($size = null)
     {
-        return '<img src="' . StringUtil::encodeHTML($this->getURL($size)) . '" width="' . $size . '" height="' . $size . '" alt="" class="userAvatarImage">';
+        return '<img src="' . StringUtil::encodeHTML($this->getURL($size)) . '" width="' . $size . '" height="' . $size . '" alt="" class="userAvatarImage" loading="lazy">';
     }
 
     /**
-- 
2.20.1