Re: [quicwg/base-drafts] Alt-Svc and extension equivalence across H2 and H3 (#3101)

Mike Bishop <> Thu, 17 October 2019 18:36 UTC

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Date: Thu, 17 Oct 2019 11:36:11 -0700
From: Mike Bishop <>
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Subject: Re: [quicwg/base-drafts] Alt-Svc and extension equivalence across H2 and H3 (#3101)
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That's basically what HTTP_1_1_REQUIRED / HTTP_VERSION_FALLBACK were for.  We originally used HTTP status 505 with a header describing what versions could have handled the request.  However, during HTTP/2 development we concluded that a stream error was more appropriate than a status code, because you might discover the blocker during response generation.

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