1 files changed, 2 insertions, 1 deletions
diff --git a/itjs.php b/itjs.php
index d8932ed..4e3b89c 100644
--- a/itjs.php
+++ b/itjs.php
@@ -40,7 +40,8 @@ else if (!ereg('\.html$', $file))
 
 if ($checksum != $_SERVER['HTTP_IF_NONE_MATCH'])
 {
-	header("Cache-Control: max-age=900");
+	if (!preg_match('/Opera/', $_SERVER['HTTP_USER_AGENT']))
+		header("Cache-Control: max-age=900");
 
 	if ($_REQUEST['boot'])
 		$data .= "window.it_boot_init();";