I know that status code 418 was defined as a April Fools' joke, and "is not expected to be implemented by actual HTTP servers" as is stated on Wikipedia.
But I would be interested if any of you knew of a language/webserver/IDE that supports it.
I was trying on Apache (via php), and obviously it got me an internal error (500). I just like the humor behind it (am not trying to troll here) and would like to know if more than just Emacs implements this.
More precisely: It could be emulated in php for example by doing something like ...
header("HTTP/1.1 418 Whatever text I'd like");
... but do any of you know any actual server software, or language in particular, that implements it natively, where something like the following would not throw a 500, but actually work:
http_response_code(418);