Re: Issue with draft-ietf-httpbis-h2-websockets-07 (in RFC Editor queue)

On 10/08/18 15:48, Amos Jeffries wrote:
> On 10/08/18 11:25, Mike Bishop wrote:
>> Ick.  This looks like a 6455 erratum – the registration is “WebSocket”
>> but all the (non-normative) examples are “websocket”.  Case-insensitive
>> matching is explicitly permitted, and RFC2616/2817 don’t clearly say
>> that Upgrade tokens are or aren’t case-sensitive that I can find.  (Nor
>> do I see it in 7230…?)
>>
> 
> I was of the understanding that Upgrade labels are governed by the
> relevant protocols equivalent of RFC 7230 section 2.6 rules. So for
> example HTTP labels *are* case sensitive, but WebSockets is free to
> define sensitivity for its own label.
> 
> RFC 6455 defines with a MUST requirement that client send "websocket"
> (lower case) in Upgrade headers. Also there is a MUST requiring
> case-insensitive match for non-"websocket" to fail the connection
> (implying case-sensitive "websocket" is valid).

I mean "case-insensitive" ^^ here.

> 
> The situation seems reasonably clear to me that WebSockets Upgrade
> values are case-insensitive.
> 

Amos

Received on Friday, 10 August 2018 04:28:59 UTC