From 6c6b4aca1eddd60a42a2fd773448867fd37c5913 Mon Sep 17 00:00:00 2001
From: Brad Decker <bhdecker84@gmail.com>
Date: Tue, 29 Nov 2022 11:01:23 -0500
Subject: [PATCH] fix issue preventing switching to localhost (#16707)

---
 .../rpc-method-middleware/handlers/switch-ethereum-chain.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/app/scripts/lib/rpc-method-middleware/handlers/switch-ethereum-chain.js b/app/scripts/lib/rpc-method-middleware/handlers/switch-ethereum-chain.js
index c32dc4620..7c5edc155 100644
--- a/app/scripts/lib/rpc-method-middleware/handlers/switch-ethereum-chain.js
+++ b/app/scripts/lib/rpc-method-middleware/handlers/switch-ethereum-chain.js
@@ -6,6 +6,7 @@ import {
   NETWORK_TO_NAME_MAP,
   CHAIN_ID_TO_RPC_URL_MAP,
   CURRENCY_SYMBOLS,
+  NETWORK_TYPES,
 } from '../../../../../shared/constants/network';
 import {
   isPrefixedFormattedHexString,
@@ -107,7 +108,10 @@ async function switchEthereumChainHandler(
         type: MESSAGE_TYPE.SWITCH_ETHEREUM_CHAIN,
         requestData,
       });
-      if (chainId in CHAIN_ID_TO_TYPE_MAP) {
+      if (
+        chainId in CHAIN_ID_TO_TYPE_MAP &&
+        approvedRequestData.type !== NETWORK_TYPES.LOCALHOST
+      ) {
         setProviderType(approvedRequestData.type);
       } else {
         await updateRpcTarget(approvedRequestData);