support max-age

1 files changed, 2 insertions, 0 deletions

diff --git a/itjs.php b/itjs.php
index 3055958..5c23b4a 100644
--- a/itjs.php
+++ b/itjs.php
@@ -40,6 +40,8 @@ else if (!ereg('\.html$', $file))
 
 if ($checksum != $_SERVER['HTTP_IF_NONE_MATCH'])
 {
+	header("Cache-Control: max-age=900");
+
 	if ($_REQUEST['boot'])
 		$data = preg_replace('/([\xa0-\xff])/e', 'sprintf("\\u%04x", ord("\\1"))', $data) . "window.it_boot_init();";