From 45fef2f0164e3553c0f7f9b4d90abec49de6b51f Mon Sep 17 00:00:00 2001
From: ieow <cwlee0@gmail.com>
Date: Thu, 2 Jan 2025 18:32:20 +0800
Subject: [PATCH] fix: signTypedData eip712domain

---
 .../src/providers/signingProviders/signingUtils.ts               | 1 +
 1 file changed, 1 insertion(+)

diff --git a/packages/providers/ethereum-mpc-provider/src/providers/signingProviders/signingUtils.ts b/packages/providers/ethereum-mpc-provider/src/providers/signingProviders/signingUtils.ts
index a82eb1595..6290c93d1 100644
--- a/packages/providers/ethereum-mpc-provider/src/providers/signingProviders/signingUtils.ts
+++ b/packages/providers/ethereum-mpc-provider/src/providers/signingProviders/signingUtils.ts
@@ -170,6 +170,7 @@ export function getProviderHandlers({
       const chainId = await providerEngineProxy.request<unknown, string>({ method: "eth_chainId" });
       await validateTypedSignMessageDataV4(msgParams, chainId);
       const data = typeof msgParams.data === "string" ? JSON.parse(msgParams.data) : msgParams.data;
+      if (data.types.EIP712Domain) delete data.types.EIP712Domain;
       const sig = signTypedData(sign, data, SignTypedDataVersion.V4);
       return sig;
     },