From 54d78f6c86bea7e23e2f5f349d6a5a37d3cbdaba Mon Sep 17 00:00:00 2001
From: Coleman Watts <coleman@civicrm.org>
Date: Thu, 6 Aug 2020 15:11:10 -0400
Subject: [PATCH] APIv4 Explorer - Fix possible undefined index

---
 ang/api4Explorer/Explorer.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/ang/api4Explorer/Explorer.js b/ang/api4Explorer/Explorer.js
index 10ed8f6147..41750691c6 100644
--- a/ang/api4Explorer/Explorer.js
+++ b/ang/api4Explorer/Explorer.js
@@ -326,7 +326,11 @@
       }
       // Then lookup implicit links
       _.each(path, function(node) {
-        entity = _.find(links[entity], {alias: node}).entity;
+        var link = _.find(links[entity], {alias: node});
+        if (!link) {
+          return false;
+        }
+        entity = link.entity;
       });
       return entity;
     }
-- 
2.25.1