Rename feature h2c to serve-h2c.

conf/Caddyfile

@@ -68,7 +68,7 @@
 		on_demand
 	}
 
-	@h2c `{env.PAGES_FEATURES}.matches(r"\bh2c\b")`
+	@h2c `{env.PAGES_FEATURES}.matches(r"\bserve-h2c\b")`
 	reverse_proxy @h2c h2c://{$GIT_PAGES_ADDRESS:localhost}:3000
 	reverse_proxy http://{$GIT_PAGES_ADDRESS:localhost}:3000
 

src/main.go

@@ -63,7 +63,7 @@ func serve(listener net.Listener, handler http.Handler) {
 		server := http.Server{Handler: handler}
 		server.Protocols = new(http.Protocols)
 		server.Protocols.SetHTTP1(true)
-		if config.Feature("h2c") {
+		if config.Feature("serve-h2c") {
 			server.Protocols.SetUnencryptedHTTP2(true)
 		}
 		log.Fatalln(server.Serve(listener))