> I'm not sure I get you point about the upgrade field as it's optional.
Like I said, I don't think H2 allows upgrades. The other question was about backends doing a protocol switch, which means the client asked for an Upgrade and got it. There's no way to go from vcl_backend_response to vcl_pipe (or fwiw the state after the subroutine) so upgrade requests should be intercepted in vcl_recv. Dridi _______________________________________________ varnish-dev mailing list [email protected] https://www.varnish-cache.org/lists/mailman/listinfo/varnish-dev
