Nginx 1.9.11 and OpenSSL 1.0.2G - HTTP2, but no ALPN negotiated.

Andrew Hutchings ahutchings at
Thu Mar 3 18:58:57 UTC 2016


This link was also shown to me today. I have contacted Google to ask 
them to reverse the decision to drop NPN HTTP/2.

Kind Regards

On 03/03/16 16:00, Alt wrote:
> Hello,
> "In most cases HTTP/2 with NPN in OpenSSL 1.0.1 will work for now.", yes,
> for now, sadly Google will remove the NPN support in Chrome "soon": "We plan
> to remove support for SPDY in early 2016, and to also remove support for the
> TLS extension named NPN in favor of ALPN in Chrome at the same time. Server
> developers are strongly encouraged to move to HTTP/2 and ALPN.".
> Source:
> Thats why we all have to hurry the migration to ALPN by compiling nginx with
> OpenSSL 1.0.2 or LibreSSL.
> PS : I can't find a good reason for Google to drop support for NPN right
> now... it feels like last year, when they wanted to drop support of SPDY in
> Chrome when HTTP/2 was barely standardized and no major web server was
> HTTP/2 ready.
> Best Regards
> Posted at Nginx Forum:,265036,265048#msg-265048
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Andrew Hutchings (LinuxJedi)
Technical Product Manager, NGINX Inc.

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