On 2016-01-19 20:47, Ryan Sleevi wrote:
...
Hi Anne, I must admit, I'm not entirely clear as to what you're asking. In the case of headers that follow the #rule construct, any number of intermediaries (or, for that matter, processing libraries, such as CGI interfaces) are perfectly permitted to arrange the headers such that "X: 1, 3, 4" is valid, iff X follows #rule syntax (c.f Section 4.3 of RFC 2616). So any application that relies on how it was sent / received over the wire is, in my mind, improperly coded, and not something that needs to be supported. ...
Intermediaries are *always* allowed to this kind of folding; they are not expected to understand the syntax (#list or not).
The only exception is, as Mark stated, Set-Cookie. See <http://greenbytes.de/tech/webdav/rfc7230.html#field.order>.
Best regards, Julian
