From 0d87357e0809fef560c2f870e01cbc3b7a164d4c Mon Sep 17 00:00:00 2001
From: Martim Passos <49573683+martimpassos@users.noreply.github.com>
Date: Wed, 31 Jan 2024 18:13:32 -0300
Subject: [PATCH] Use optional chaining when extracting values

---
 src/plugin.js   | 2 +-
 src/resource.js | 3 +--
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/plugin.js b/src/plugin.js
index a04d66e..4d83144 100644
--- a/src/plugin.js
+++ b/src/plugin.js
@@ -260,7 +260,7 @@ class TropiiifyPlugin {
 
 
 TropiiifyPlugin.defaults = {
-  itemTemplate: 'Tropy Generic',
+  itemTemplate: 'https://tropy.org/v1/templates/generic',
   collectionName: 'My IIIF Collection',
   homepageLabel: 'Object homepage',
   requiredStatementLabel: 'Attribution',
diff --git a/src/resource.js b/src/resource.js
index cf60091..0dbd67c 100644
--- a/src/resource.js
+++ b/src/resource.js
@@ -39,7 +39,6 @@ class Resource {
         y: this.extractValue(selection, tropy('y')),
         width: this.extractValue(selection, tropy('width')),
         height: this.extractValue(selection, tropy('height')),
-
       }))
     }))
 
@@ -47,7 +46,7 @@ class Resource {
   }
 
   extractValue(data, property) {
-    return data[property]?.[0]['@value'] || data[property]?.[0]['@list'];
+    return data?.[property]?.[0]?.['@value'] || data?.[property]?.[0]?.['@list'];
   }
 
   assembleHTML(property) {