From cd73d5c1d01e03e64e27164d2117731b116816ea Mon Sep 17 00:00:00 2001
From: stelar7 <dudedbz@gmail.com>
Date: Sun, 8 May 2022 12:30:56 +0200
Subject: [PATCH] LibWeb: Add missing preprocessing step to the css tokenizer

---
 Userland/Libraries/LibWeb/CSS/Parser/Tokenizer.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Userland/Libraries/LibWeb/CSS/Parser/Tokenizer.cpp b/Userland/Libraries/LibWeb/CSS/Parser/Tokenizer.cpp
index 55f1c215ba..a99c774da6 100644
--- a/Userland/Libraries/LibWeb/CSS/Parser/Tokenizer.cpp
+++ b/Userland/Libraries/LibWeb/CSS/Parser/Tokenizer.cpp
@@ -223,6 +223,8 @@ Tokenizer::Tokenizer(StringView input, String const& encoding)
                 }
             } else if (code_point == '\f') {
                 builder.append('\n');
+            } else if (code_point == 0x00) {
+                builder.append_code_point(REPLACEMENT_CHARACTER);
             } else if (code_point >= 0xD800 && code_point <= 0xDFFF) {
                 builder.append_code_point(REPLACEMENT_CHARACTER);
             } else {