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-rw-r--r--modules/caddyhttp/server.go11
1 files changed, 11 insertions, 0 deletions
diff --git a/modules/caddyhttp/server.go b/modules/caddyhttp/server.go
index 36e7042..a4fda28 100644
--- a/modules/caddyhttp/server.go
+++ b/modules/caddyhttp/server.go
@@ -111,6 +111,17 @@ type Server struct {
// This field is not subject to compatibility promises.
ExperimentalHTTP3 bool `json:"experimental_http3,omitempty"`
+ // Enables H2C ("Cleartext HTTP/2" or "H2 over TCP") support,
+ // which will serve HTTP/2 over plaintext TCP connections if
+ // a client support it. Because this is not implemented by the
+ // Go standard library, using H2C is incompatible with most
+ // of the other options for this server. Do not enable this
+ // only to achieve maximum client compatibility. In practice,
+ // very few clients implement H2C, and even fewer require it.
+ // This setting applies only to unencrypted HTTP listeners.
+ // ⚠️ Experimental feature; subject to change or removal.
+ AllowH2C bool `json:"allow_h2c,omitempty"`
+
primaryHandlerChain Handler
errorHandlerChain Handler
listenerWrappers []caddy.ListenerWrapper