server: drop HTTP/1.1 h2c upgrade handling (#5436)

Use net/http Server.Protocols and the merged golib listener path instead of the deprecated h2c handler. Keep HTTP/1.1 and cleartext HTTP/2 prior-knowledge support, while intentionally dropping HTTP/1.1 Upgrade: h2c.
This commit is contained in:
fatedier
2026-07-22 19:55:42 +08:00
committed by GitHub
parent 7dc7be930e
commit f8fc3c6b1b
8 changed files with 156 additions and 11 deletions

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@@ -1,4 +1,5 @@
## Fixes
* HTTP vhost servers no longer support HTTP/1.1 `Upgrade: h2c` requests. Cleartext HTTP/2 prior-knowledge remains supported.
* Fixed control-session replacement leaks when frpc reconnects through a half-open TCP multiplexed connection.
* Fixed an SSH tunnel gateway panic when handling malformed exec requests.