Posts tagged “rfc-9113”

• October 27, 2026 · Development

  HTTP 421 Misdirected Request: when a reused HTTP/2 connection reaches the wrong server

  HTTP/2 can carry several origins on one connection, yet a server may still answer 421. What RFC 9110 and 9113 say about authority, connection reuse and retrying on a new connection.

  http2rfc-9110rfc-9113networkprotocol
• October 22, 2026 · Development

  Can you resend requests after an HTTP/2 GOAWAY? Last-Stream-ID, REFUSED_STREAM, and what changes in HTTP/3

  GOAWAY's Last-Stream-ID marks the last stream a server may have processed; requests above it can be resent on a new connection, even POST. Plus the two-step shutdown, REFUSED_STREAM and HTTP/3.

  http2http3rfc-9113networkprotocol

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