README request["SOME_HEADER"] documentation incorrect.

[CraigStuntz]

The README says:

request["SOME_HEADER"]      # value of SOME_HEADER header

This is wrong. Rack doesn't put headers in the params hash, just form data and query strings. Sinatra doesn't override this, either.

As far as I can tell, the only way to get request headers is via env.

[kgrz]

@CraigStuntz Yes. it should be `request.env["SOME_HEADER"]. Mind if I sent a pull request?

[CraigStuntz]

@kgrz That's fine, but request["SOME_PARAM"] also has value. It just doesn't include headers. Maybe it should say:

request["SOME_PARAM"]      # value of SOME_PARAM request param

?

[kgrz]

It returned nil. request cannot be queried that way as far as know. Unlike env which is a hash.

[CraigStuntz]

Hmm... The source code and the docs say otherwise. Have you tested?

[kgrz]

Yes, I've tested it. In the Rack Request docs, it says that [] is a shortcut to 'request.params' hash. This is the GET and POST params hash and not the headers hash. So request["HTTP_REFERER"] returns a nil. However, request[:query] will return "Hello" provided the url is http://localhost/?query=Hello. I've tested the headers part am I'm sure about that. The second part is what I infer from the docs and Rack source.

Sorry about lack of proper formatting. My phone keypad doesn't have a backticks key.

[kgrz]

Oh. I think you meant the same thing right? :-) Perhaps I got carried away by the capital "SOME_VALUE" there. My mistake.

[rkh]

Pull Request for better docs welcome. You'll get karma points.

[kgrz]

Modified accordingly: 6ec1aa4