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Direct HTTP/2 on clear TCP ( h2c )

From: Inca R <>
Date: Mon, 7 Mar 2016 14:55:59 -0800


This is from:

Possibly we introduce an option that makes libcurl use HTTP/2 at once over

Is the "option" ready yet ?
We have http/2 already implemented using nghttp2 to proxy between http/1.1
and http/2. nghttp2 supports http/1.1 upgrade to http/2.
No we are trying to support also some CDNs, but they only support h2c TCP.
No http/2 upgrade from http/1.1 in clear text. Those CDNs are based on

I just wonder what is the status of that "option" to be able to send http/2
at once, without http/1.1 update

-- Inca

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Received on 2016-03-07