From f29fef2bac4c458c01274ac8989b9438722fa826 Mon Sep 17 00:00:00 2001
From: Joe Corall <joe@libops.io>
Date: Mon, 6 Nov 2023 07:56:43 -0500
Subject: [PATCH] Do not render the pdf_url metatag if there is no value (#985)

* Do not render the pdf_url metatag if there is no value

* Always return a string
---
 islandora.tokens.inc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/islandora.tokens.inc b/islandora.tokens.inc
index ab7bb073..f528dee3 100644
--- a/islandora.tokens.inc
+++ b/islandora.tokens.inc
@@ -134,7 +134,7 @@ function islandora_tokens($type, $tokens, array $data, array $options, Bubbleabl
           break;
 
         case 'pdf_url':
-          $replacements[$original] = ' ' . islandora_url_to_service_file_media_by_mimetype($data['node'], 'application/pdf');
+          $replacements[$original] = islandora_url_to_service_file_media_by_mimetype($data['node'], 'application/pdf');
           break;
       }
     }
@@ -188,4 +188,5 @@ function islandora_url_to_service_file_media_by_mimetype($node, $mime_type) {
       }
     }
   }
+  return '';
 }