From 5e19659d1526a9c39f7d32e08704562d6e6f9011 Mon Sep 17 00:00:00 2001
From: David Mark Clements <david.mark.clements@gmail.com>
Date: Thu, 23 Feb 2023 18:17:52 +0100
Subject: [PATCH] __proto__ own copying doc

---
 readme.md | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/readme.md b/readme.md
index 832d748..104bc81 100644
--- a/readme.md
+++ b/readme.md
@@ -145,6 +145,14 @@ All files |      100 |      100 |      100 |      100 |                   |
 ----------|----------|----------|----------|----------|-------------------|
 ```
 
+### `__proto__` own property copying
+
+`rfdc` works the same way as `Object.assign` when it comes to copying `['__proto__']` (e.g. when
+an object has an own property key called '__proto__'). It results in the target object 
+prototype object being set per the value of the `['__proto__']` own property.
+
+For detailed write-up on how a way to handle this security-wise see https://www.fastify.io/docs/latest/Guides/Prototype-Poisoning/.
+
 ## License
 
 MIT