From bc6f84771eb7cd3d654cb95caf378a7f861bcad6 Mon Sep 17 00:00:00 2001
From: Jeroen Domburg <jeroen@spritesmods.com>
Date: Thu, 5 Feb 2015 23:11:20 +0100
Subject: [PATCH] Add cache header when serving a static file. Thanks to
 Vincent Bernardoff for sending a patch.

---
 user/httpdespfs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/user/httpdespfs.c b/user/httpdespfs.c
index 7b01130..d2e67ac 100644
--- a/user/httpdespfs.c
+++ b/user/httpdespfs.c
@@ -47,6 +47,7 @@ int ICACHE_FLASH_ATTR cgiEspFsHook(HttpdConnData *connData) {
 		connData->cgiData=file;
 		httpdStartResponse(connData, 200);
 		httpdHeader(connData, "Content-Type", httpdGetMimetype(connData->url));
+		httpdHeader(connData, "Cache-Control", "max-age=3600, must-revalidate");
 		httpdEndHeaders(connData);
 		return HTTPD_CGI_MORE;
 	}