From 75a56c460da3ec74090013c487615ee3e2ddefdb Mon Sep 17 00:00:00 2001
From: bymyself <cbyrne@comfy.org>
Date: Sun, 8 Jun 2025 00:55:59 -0700
Subject: [PATCH] [fix] Prevent error when deleting nodes with missing
 definitions

Adds defensive array access checks in widgetInputs.ts to handle cases where
customSpec is not a valid array when merging widget configurations. This
resolves the 'Cannot read properties of null (reading "1")' error that
occurs when attempting to delete nodes whose definitions have been removed.

Fixes #8338
---
 src/extensions/core/widgetInputs.ts | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/extensions/core/widgetInputs.ts b/src/extensions/core/widgetInputs.ts
index ee6dab683..0d2515531 100644
--- a/src/extensions/core/widgetInputs.ts
+++ b/src/extensions/core/widgetInputs.ts
@@ -506,7 +506,12 @@ export function mergeIfValid(
     }
   }
 
-  return { customConfig: customSpec?.[1] ?? {} }
+  return {
+    customConfig:
+      customSpec && Array.isArray(customSpec) && customSpec[1]
+        ? customSpec[1]
+        : {}
+  }
 }
 
 app.registerExtension({