h2c: Enable health checking for connections if they are idle

client.go

@@ -36,6 +36,8 @@
 			var d net.Dialer
 			return d.DialContext(ctx, network, addr)
 		},
+		ReadIdleTimeout: 30 * time.Second,
+		PingTimeout:     10 * time.Second,
 	}
 )
 
@@ -58,7 +60,7 @@
 
 // HttpService returns a Service which sends requests via the given net/http RoundTripper.
 // Only use this if you need to do something custom at the transport level.
 func HttpService(rt http.RoundTripper) Service {
 	return func(req Request) Response {
 		ctx := req.unwrappedContext()
 		httpRsp, err := rt.RoundTrip(req.Request.WithContext(ctx))
@@ -106,7 +108,7 @@
 // Send round-trips the request via the default Client. It does not block, instead returning a ResponseFuture
 // representing the asynchronous operation to produce the response. It is equivalent to:
 //
-//  SendVia(req, Client)
+//	SendVia(req, Client)
 func Send(req Request) *ResponseFuture {
 	return SendVia(req, Client)
 }