Header names are case sensitive. about arduinowebsockets HOT 3 CLOSED

the rfc6455 says:

The request MUST include a header field with the name |Sec-WebSocket-Version|.  The value of this header field MUST be 13.

(https://tools.ietf.org/html/rfc6455#page-18)

for cases where case insensitive is allowed they write it down like this fore example:

 If the response lacks an |Upgrade| header field or the |Upgrade| header field contains a value that is not an ASCII case-insensitive match for the value "websocket", the client MUST _Fail the WebSocket Connection_.

(https://tools.ietf.org/html/rfc6455#page-19)

so i think the only valid way is "Sec-WebSocket-Version" like all browser do it,
i prefer to implement the rfc6455 as exact as possible :)
if you have some other source of information please give me a link.

from arduinowebsockets.

On page 4, it says:

The format and parsing of headers is as defined in [RFC2616].

And then in RFC2616 secion 4.2 it says:

Each header field consists of a name followed by a colon (":") and the field value. Field names are case-insensitive.

They don't repeat this in the websocket spec which is why it's not found there.

from arduinowebsockets.

have missed this one, will do some changes on weekend.

from arduinowebsockets.