SPDY add_header with Alternate-Protocol
Valentin V. Bartenev
vbart at nginx.com
Thu Jan 15 18:35:47 UTC 2015
On Thursday 15 January 2015 18:11:46 Richard Fussenegger wrote:
> But isn't nginx advertising them without manual adding of such headers?
> I mean, why configure SPDY on the listen directive when it isn't going
> to be used by clients (which is not the case, all browsers happily
> connect via SPDY).
They use SPDY because it's advertised during TLS handshake using
NPN/ALPN TLS extensions.
The "Alternate-Protocol" header was introduced for cases when no
other mechanisms available (e.g. for plain HTTP connections).
wbr, Valentin V. Bartenev
More information about the nginx-devel