From 91f0943d831d947583b8f59ab30e3b4b4f51f53c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andreas=20N=C3=A4geli?= <andreas.naegeli@isceco.admin.ch>
Date: Wed, 1 Jul 2026 13:53:08 +0200
Subject: [PATCH] Yield error 505 on unsupported HTTP version

---
 .../UltraHardened/UltraHardenedParser.FullHeader.ROM.cs       | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Glyph11/Parser/UltraHardened/UltraHardenedParser.FullHeader.ROM.cs b/src/Glyph11/Parser/UltraHardened/UltraHardenedParser.FullHeader.ROM.cs
index ba14ef1..228bc69 100644
--- a/src/Glyph11/Parser/UltraHardened/UltraHardenedParser.FullHeader.ROM.cs
+++ b/src/Glyph11/Parser/UltraHardened/UltraHardenedParser.FullHeader.ROM.cs
@@ -4,7 +4,7 @@
 namespace Glyph11.Parser.UltraHardened;
 
 /// <summary>
-/// 
+///
 /// </summary>
 public static partial class UltraHardenedParser
 {
@@ -96,7 +96,7 @@ public static bool TryExtractFullHeaderROM(
         // --- Version ---
         var versionSpan = requestLine[(secondSpace + 1)..];
         if (!ParserConstants.IsValidHttpVersion(versionSpan))
-            throw new HttpParseException("Invalid HTTP version.");
+            throw new HttpParseException("Invalid HTTP version.", 505);
 
         request.Version = input.Slice(secondSpace + 1, versionSpan.Length);