From d0b42e75481727a979ba5ef6104d8d8c37ff88e8 Mon Sep 17 00:00:00 2001
From: tofpie <tofpie@users.noreply.github.com>
Date: Sat, 2 Jan 2021 00:05:03 +0100
Subject: [PATCH] Fix attribute configurable of the length property of
 arguments

---
 boa/src/builtins/function/mod.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/boa/src/builtins/function/mod.rs b/boa/src/builtins/function/mod.rs
index ae46d8068df..4a07f00855f 100644
--- a/boa/src/builtins/function/mod.rs
+++ b/boa/src/builtins/function/mod.rs
@@ -182,7 +182,7 @@ pub fn create_unmapped_arguments_object(arguments_list: &[Value]) -> Value {
     // Set length
     let length = DataDescriptor::new(
         len,
-        Attribute::WRITABLE | Attribute::NON_ENUMERABLE | Attribute::PERMANENT,
+        Attribute::WRITABLE | Attribute::NON_ENUMERABLE | Attribute::CONFIGURABLE,
     );
     // Define length as a property
     obj.ordinary_define_own_property("length", length.into());