From ae341b31c869bc77decaf843fc2417f386440d77 Mon Sep 17 00:00:00 2001
From: Jonathan Brown <jbrown@bluedroplet.com>
Date: Mon, 3 Oct 2016 18:18:46 +0700
Subject: [PATCH] rpc: set CORS Max-Age to reduce preflight OPTIONS requests

---
 rpc/http.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/rpc/http.go b/rpc/http.go
index afcdd4bd64..c923580bfe 100644
--- a/rpc/http.go
+++ b/rpc/http.go
@@ -170,6 +170,7 @@ func newCorsHandler(srv *Server, corsString string) http.Handler {
 	c := cors.New(cors.Options{
 		AllowedOrigins: allowedOrigins,
 		AllowedMethods: []string{"POST", "GET"},
+		MaxAge: 600,
 	})
 	return c.Handler(srv)
 }