Allow browsers to cache images and other static content.

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@183865 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/http.c

@@ -213,7 +213,7 @@ static struct ast_str *static_callback(struct ast_tcptls_session_instance *ser,
 		"Server: Asterisk/%s\r\n"
 		"Date: %s\r\n"
 		"Connection: close\r\n"
-		"Cache-Control: no-cache, no-store\r\n"
+		"Cache-Control: private\r\n"
 		"Content-Length: %d\r\n"
 		"Content-type: %s\r\n\r\n",
 		ast_get_version(), buf, (int) st.st_size, mtype);