Hypertext Transfer Protocol (HTTP) Upgrade Token Registry
2023-10-20
HTTP Upgrade Tokens
RFC9110, Section 16.7
First Come First Served
Please see , Section 16.7 for details regarding token registrations.
HTTP
Hypertext Transfer Protocol
any DIGIT.DIGIT (e.g., "2.0")
RFC9110, Section 2.5
TLS
Transport Layer Security
ANY DIGIT.DIGIT (e.g., "1.2")
WebSocket
The Web Socket Protocol
websocket
The Web Socket Protocol
h2c
Hypertext Transfer Protocol version 2 (HTTP/2) (OBSOLETE)
RFC9113, Section 3.1
connect-udp
Proxying of UDP Payloads
connect-ip
Proxying of IP Payloads