RE: Multiple Headers

[RUELLAN Herve <[e-mail]>]

Yes you correctly read the intent. I will update the last paragraph of "3.1 Header Table" to be clearer.

Yes the server uses the same table when compressing the PUSH_PROMISE headers: the server has only one compression context for the headers it sends. This table needs to be updated to include the request headers contained in a PUSH_PROMISE frame.

Hervé.
________________________________
From: Jeff Pinner [[e-mail]]
Sent: Sunday, June 16, 2013 20:52
To: James M Snell
Cc: HTTP Working Group
Subject: Re: Multiple Headers

Another point requiring clarification:

The draft lists tables with pre-defined headers for "requests" and "responses." I am presuming that the intention was, for example, that a server would initialize its sending header table with the "response" table listed in appendix A.2.

My question is, should the server also use this table when compressing the PUSH_PROMISE header block which contains "request" headers?


On Sun, Jun 16, 2013 at 8:13 AM, James M Snell <[e-mail]<mailto:[e-mail]>> wrote:

It is currently unspecified. There are two ways of doing multiple values in the current draft that may change a bit once we get into the type codecs. Currently you can either null separate the instances in a single header value, or you can use separate opcodes for each (treat them as separate headers). The latter can be far more efficient in the encoding. For now, I'd recommend the separate opcode approach and revisit it when we discuss type codecs in more detail.

On Jun 16, 2013 7:48 AM, "Jeff Pinner" <[e-mail]<mailto:[e-mail]>> wrote:
The SPDY spec defined how multiple headers with the same name were to be encoded (as one header with the value-field containing multiple null-separated entries).

Is this the expected encoding for draft-ruellan-http-header-compression-00.txt?