1 files changed, 4 insertions, 1 deletions

diff --git a/itjs.php b/itjs.php
index d8932ed..f0b0deb 100644
--- a/itjs.php
+++ b/itjs.php
@@ -45,7 +45,10 @@ if ($checksum != $_SERVER['HTTP_IF_NONE_MATCH'])
 	if ($_REQUEST['boot'])
 		$data .= "window.it_boot_init();";
 
-	echo itjs::strip($data);
+	$data = itjs::strip($data);
+
+	header("Content-Length: " . strlen($data));
+	echo $data;
 }
 else
 	header("HTTP/1.0 304 Not Modified");