HTTP registry: 0x4d
Registered value from the IANA HTTP registry.
HTTP/3 registry values apply to QUIC-backed streams, frames, settings, or protocol negotiation. The registry marks this value provisional; review compatibility before deploying it. 0x4d is provisional in HTTP/3 Frame Types. Defining reference: draft-beky-httpbis-metadata-02.
Identifier (http)
0x4d
Registered value from the IANA HTTP registry.
Preserve HTTP semantics while accounting for QUIC migration, TLS/ALPN negotiation, and early-data replay risk. The registry marks this value provisional; review compatibility before deploying it.
This registry value is currently marked provisional by IANA. Follow the defining specification before sending, accepting, or proxying it.
IANA registry: http3-parameters/http3-parameters-frame-types
Registry reference: draft-beky-httpbis-metadata-02