From 9813e11d5475c306fb0f2eb9513bd9ae264b75d6 Mon Sep 17 00:00:00 2001
From: Houssein Djirdeh <houssein@google.com>
Date: Tue, 17 May 2022 17:18:54 -0400
Subject: [PATCH] fixes Script function child check in document

---
 packages/next/pages/_document.tsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/next/pages/_document.tsx b/packages/next/pages/_document.tsx
index badc0f7a6b85c7..e731dddfd16455 100644
--- a/packages/next/pages/_document.tsx
+++ b/packages/next/pages/_document.tsx
@@ -605,7 +605,7 @@ export class Head extends Component<
     const filteredChildren: ReactNode[] = []
 
     React.Children.forEach(children, (child: any) => {
-      if (child.type === Script) {
+      if (typeof child.type === 'function' && child.type.name === 'Script') {
         if (child.props.strategy === 'beforeInteractive') {
           scriptLoader.beforeInteractive = (
             scriptLoader.beforeInteractive || []