rfc 9112

RFC 9112 specifies the HTTP/1.1 message syntax and parsing rules, including stricter handling of chunked transfer encoding. On WindowsForum.com, discussions focus on Microsoft's November 2025 cumulative update KB5068865 for Windows 11, which aligns HTTP.sys chunked parsing with RFC 9112. The update introduces a registry toggle to enforce strict parsing, addressing security and compatibility concerns for administrators managing HTTP traffic. Topics include the registry key location, behavior differences between lenient and strict modes, and guidance for testing legacy proxies or appliances. These threads are relevant for IT professionals and system administrators maintaining Windows-based web servers or applications relying on HTTP.sys.