From f42616698c3fd5c8bf86421c92c33f3f6e43c05c Mon Sep 17 00:00:00 2001
From: Amos Wong <amoswwj@gmail.com>
Date: Sun, 3 Oct 2021 22:16:48 +0800
Subject: [PATCH] fix(node/bundler): Prevent spreading string into return
 (#2335)

---
 node-swc/src/spack.ts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/node-swc/src/spack.ts b/node-swc/src/spack.ts
index d57e099451b2..3e3a3f5599b7 100644
--- a/node-swc/src/spack.ts
+++ b/node-swc/src/spack.ts
@@ -22,7 +22,11 @@ export async function compileBundleOptions(config: BundleInput | string | undefi
             }
             return configFromFile;
         }
-        return Object.assign({}, configFromFile, config);
+
+        return {
+            ...configFromFile,
+            ...(typeof config === 'string') ? {} : config
+        };
     } catch (e) {
         if (typeof f === 'string') {
             throw new Error(`Error occurred while loading config file at ${config}: ${e}`);