From c0d5634ed205f30029b5d7c4e298f80d4b75c20e Mon Sep 17 00:00:00 2001
From: Fionna Chan <13184582+fionnachan@users.noreply.github.com>
Date: Mon, 21 Oct 2024 19:19:16 +0800
Subject: [PATCH] refactor: tighten isOrbitChain check (#2004)

---
 packages/arb-token-bridge-ui/src/util/networks.ts | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/packages/arb-token-bridge-ui/src/util/networks.ts b/packages/arb-token-bridge-ui/src/util/networks.ts
index e6b22e9a83..06fe5ca182 100644
--- a/packages/arb-token-bridge-ui/src/util/networks.ts
+++ b/packages/arb-token-bridge-ui/src/util/networks.ts
@@ -385,6 +385,14 @@ function isTestnetChain(chainId: ChainId) {
   }
 }
 
+function getIsArbitrumChain(chainId: ChainId) {
+  try {
+    return !!getArbitrumNetwork(chainId).parentChainId
+  } catch (error) {
+    return false
+  }
+}
+
 export function isNetwork(chainId: ChainId) {
   const isEthereumMainnet = chainId === ChainId.Ethereum
 
@@ -404,7 +412,7 @@ export function isNetwork(chainId: ChainId) {
     isArbitrumOne || isArbitrumNova || isArbitrumLocal || isArbitrumSepolia
 
   const isCoreChain = isEthereumMainnetOrTestnet || isArbitrum
-  const isOrbitChain = !isCoreChain
+  const isOrbitChain = getIsArbitrumChain(chainId) && !isCoreChain
 
   return {
     // L1