> HTTP → RFC-2616 says in section 19.3 says "we recommend that applications ... recognize a single LF as a line terminator...." In other words it is perfectly OK for an HTTP client or server to accept CR-less HTTP requests or replies. It is not a violation of the HTTP standard to do so. Therefore they should.

The most up-to-date version of HTTP/1.1 spec is RFC 9112, which says:

> Although the line terminator for the start-line and fields is the sequence CRLF, a recipient MAY recognize a single LF as a line terminator and ignore any preceding CR.

"MAY", of course, is different from "MUST" or "SHOULD", so I feel like the author's claim that implementations rejecting bare NLs are broken is at odds with the specification.