--- boa.h.orig	2005-12-02 08:56:10.000000000 +0100
+++ boa.h	2005-12-02 08:56:10.000000000 +0100
@@ -113,6 +113,7 @@
 void print_content_type(request * req);
 void print_content_length(request * req);
 void print_last_modified(request * req);
+void print_cache_control(request * req);
 void print_http_headers(request * req);
 
 void send_r_request_ok(request * req); /* 200 */
--- response.c.orig	2005-12-02 08:56:10.000000000 +0100
+++ response.c	2005-12-02 08:56:10.000000000 +0100
@@ -49,6 +49,15 @@
     req_write(req, lm);
 }
 
+void print_cache_control(request * req)
+{
+    static char expires[] = "Expires: "
+        "                             " "\r\n";
+    rfc822_time_buf(expires + 9, current_time + 7200);
+    req_write(req, expires);
+    req_write(req, "Cache-Control: max-age=7200, s-maxage=7200, public\r\n");
+}
+
 void print_ka_phrase(request * req)
 {
     if (req->kacount > 0 &&
@@ -91,6 +100,7 @@
         print_content_length(req);
         print_last_modified(req);
         print_content_type(req);
+	print_cache_control(req);
         req_write(req, "\r\n");
     }
 }