Re: HTTP/2 plaintext upgrade

Daniel Stenberg <daniel@haxx.se> Thu, 26 January 2017 14:32 UTC

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Date: Thu, 26 Jan 2017 15:28:56 +0100
From: Daniel Stenberg <daniel@haxx.se>
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Subject: Re: HTTP/2 plaintext upgrade
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On Thu, 26 Jan 2017, Cory Benfield wrote:

>> The content of the HTTP2-Settings header field is the payload of a SETTINGS 
>> frame
>
> Can I get an idea of what other implementers have done here?

A suppose many do like curl and use nghttp2_frame_pack_settings_payload() [1] 
for this. It is just a number of settings and their values encoded as section 
6.5.1 [2] describes

Right now I can't really remember exactly what sort of interop we have with 
this. I suspect we don't have too many users actually using h2 plaintext.

[1] = https://nghttp2.org/documentation/nghttp2_pack_settings_payload.html
[2] = http://httpwg.org/specs/rfc7540.html#SettingFormat

-- 

  / daniel.haxx.se