From 1b5a20078105a914c799f058a0303a04a409e989 Mon Sep 17 00:00:00 2001
From: Franz Liedke <franz@develophp.org>
Date: Thu, 26 Sep 2019 23:02:25 +0200
Subject: [PATCH] Amend the existing rel attribute of links

...instead of overwriting. This will play more nicely with extensions.

Refs #859.
---
 src/Formatter/Formatter.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/Formatter/Formatter.php b/src/Formatter/Formatter.php
index 3a5878268..d726a1dda 100644
--- a/src/Formatter/Formatter.php
+++ b/src/Formatter/Formatter.php
@@ -139,7 +139,8 @@ class Formatter
         $dom = $configurator->tags['URL']->template->asDOM();
 
         foreach ($dom->getElementsByTagName('a') as $a) {
-            $a->setAttribute('rel', 'nofollow ugc');
+            $rel = $a->getAttribute('rel');
+            $a->setAttribute('rel', "$rel nofollow ugc");
         }
 
         $dom->saveChanges();