From d4415a0e347577cc172b461b6b38bc4f1d995f16 Mon Sep 17 00:00:00 2001
From: Lex Lim <hyperzlib@outlook.com>
Date: Mon, 18 Jul 2022 11:37:47 +0800
Subject: [PATCH] Update BaseProvider.ts

---
 src/base/provider/BaseProvider.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/base/provider/BaseProvider.ts b/src/base/provider/BaseProvider.ts
index 3861d7a..fe605e5 100644
--- a/src/base/provider/BaseProvider.ts
+++ b/src/base/provider/BaseProvider.ts
@@ -31,7 +31,7 @@ export class BaseProvider {
     }
 
     static checkConfig(config: any) {
-        if (typeof config.source !== "object") {
+        if (typeof config?.source !== "object") {
             return false;
         }