From 0a8022bcf8b9e438ab5a875cee4cbc63c6e03e37 Mon Sep 17 00:00:00 2001
From: Chris Thoburn <runspired@gmail.com>
Date: Sat, 26 Aug 2023 17:36:56 -0700
Subject: [PATCH] fix: filter undefined options

---
 index.js | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/index.js b/index.js
index 9460485d..9bbac981 100644
--- a/index.js
+++ b/index.js
@@ -181,6 +181,14 @@ module.exports = {
       },
     };
 
+    // Remove any undefined options so that they don't override the default
+    // Or error when broccoli-babel-transpiler checks serializability
+    Object.keys(options.babel).forEach(key => {
+      if (options.babel[key] === undefined) {
+        delete options.babel[key];
+      }
+    });
+
     let output;
 
     const customAddonConfig = config['ember-cli-babel'];