From d03b1824d8ee964ac8755f61f436dba9b7719197 Mon Sep 17 00:00:00 2001
From: Luc Wollants <lucwollants@gmail.com>
Date: Wed, 17 Apr 2024 14:15:56 +0200
Subject: [PATCH] Check if origin is set

---
 src/Widget/Twig/TwigPreprocessor.php | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/Widget/Twig/TwigPreprocessor.php b/src/Widget/Twig/TwigPreprocessor.php
index d97ddcb0..e2372ca5 100644
--- a/src/Widget/Twig/TwigPreprocessor.php
+++ b/src/Widget/Twig/TwigPreprocessor.php
@@ -344,7 +344,9 @@ public function preprocessEventDetail(Event $event, string $langcode, array $set
             // Share links
             $shareUrl = Url::factory($this->socialHost . '/event/' . $event->getCdbid());
             $shareQuery = $shareUrl->getQuery();
-            $shareQuery['origin'] = $_GET['origin'];
+            if (isset($_GET['origin'])) {
+                $shareQuery['origin'] = $_GET['origin'];
+            }
 
             $variables['share_links'] = [
                 'facebook' => 'https://www.facebook.com/sharer/sharer.php?u=' . urlencode($shareUrl->__toString()),