From 2548d2a5e9add8f72d108c4c125b1a88e051f230 Mon Sep 17 00:00:00 2001
From: Mononaut <github@monospace.live>
Date: Wed, 11 Jan 2023 08:41:00 -0600
Subject: [PATCH] fix frontend js error on unconfirmed non-cpfp transactions

---
 .../app/components/transaction/transaction.component.ts    | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/frontend/src/app/components/transaction/transaction.component.ts b/frontend/src/app/components/transaction/transaction.component.ts
index 81ae2f055..e01092189 100644
--- a/frontend/src/app/components/transaction/transaction.component.ts
+++ b/frontend/src/app/components/transaction/transaction.component.ts
@@ -131,8 +131,11 @@ export class TransactionComponent implements OnInit, AfterViewInit, OnDestroy {
           this.cpfpInfo = null;
           return;
         }
-
-        const relatives = [...cpfpInfo.ancestors, ...cpfpInfo.descendants || [cpfpInfo.bestDescendant]];
+        // merge ancestors/descendants
+        const relatives = [...(cpfpInfo.ancestors || []), ...(cpfpInfo.descendants || [])];
+        if (cpfpInfo.bestDescendant && !cpfpInfo.descendants?.length) {
+          relatives.push(cpfpInfo.bestDescendant);
+        }
         let totalWeight =
           this.tx.weight +
           relatives.reduce((prev, val) => prev + val.weight, 0);