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fix(web): align combined H3 cover Alt-Svc with bound listener #41

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Merged
cppla merged 1 commit into from
Oct 2, 2026
Merged

fix(web): align combined H3 cover Alt-Svc with bound listener #41

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7 changes: 6 additions & 1 deletion docs/WEB_COVER.md
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Expand Up @@ -29,7 +29,12 @@ One domain and one numeric port provide two ordinary web transports:

HTTP/1.1 is a cover-only protocol; it is never upgraded into an AutoCAR
tunnel. HTTP/1.1 and HTTP/2 cover responses advertise the bound HTTP/3 service
with `Alt-Svc`. The H2 and H3 clients reuse warm connections and multiplex
with `Alt-Svc`. Source builds after v1.0.1 apply the same bound-port policy to
HTTP/3 cover responses from the combined listener, including informational and
final responses. The bound value overrides an upstream website's stale or
unrelated alternative service. Authenticated tunnel responses are not wrapped;
standalone `ListenWebH3` continues to leave advertisement to its configured cover.
The H2 and H3 clients reuse warm connections and multiplex
independent CONNECT streams. AutoCAR's H2 client requires TLS 1.3. A TLS 1.2
HTTP/2 CONNECT presented to the public origin is always treated as cover,
including when it carries an otherwise valid ticket: the handler removes
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