From c43f22363b84943d13f02a546c21d256cdf477ad Mon Sep 17 00:00:00 2001
From: Khaidi Chu <i@2333.moe>
Date: Thu, 28 Jul 2022 16:16:15 +0800
Subject: [PATCH] Update lib/buffer.js

Co-authored-by: Antoine du Hamel <duhamelantoine1995@gmail.com>
---
 lib/buffer.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/buffer.js b/lib/buffer.js
index b9e2fc9b2253bf..bbb393b94c844c 100644
--- a/lib/buffer.js
+++ b/lib/buffer.js
@@ -1280,7 +1280,7 @@ function atob(input) {
       // ASCII whitespace char codes.
       nonAsciiWhitespaceCharCount++;
 
-      if (index === kForgivingBase64AllowedChars.length - 1) {
+      if (index === kForgivingBase64AllowedChars.length - 1 && equalCharCount !== 2) {
         // The last element of `kForgivingBase64AllowedChars` is the `=`
         equalCharCount++;
       } else if (equalCharCount) {