From 263fe976a8f86d2d7190b0af467c5b2e71df4b6e Mon Sep 17 00:00:00 2001
From: "Cathy J. Fitzpatrick" <cathy@cathyjf.com>
Date: Wed, 13 Feb 2013 14:31:15 -0700
Subject: [PATCH] One more customcss.php fix

---
 customcss.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/customcss.php b/customcss.php
index 0dfd9862c..91c5ea2ba 100644
--- a/customcss.php
+++ b/customcss.php
@@ -18,14 +18,14 @@ $timenow = time();
 $expiration = ($lastmodified ? $lastmodified : $timenow) + 3600;
 header('Expires: ' . gmdate('D, d M Y H:i:s T', $expiration));
 
-if (isset($_REQUEST['invalidate']) && $lastmodified && (($timenow - $lastmodified) < 3600)) {
+if (!isset($_REQUEST['invalidate']) && $lastmodified && (($timenow - $lastmodified) < 3600)) {
 	// Don't check for modifications more than once an hour.
 	readfile($cssfile);
 	die();
 }
 
 $curl = curl_init($customcssuri);
-if ($lastmodified && empty($_REQUEST['invalidate'])) {
+if ($lastmodified && !isset($_REQUEST['invalidate'])) {
 	curl_setopt($curl, CURLOPT_HTTPHEADER, array(
 		'If-Modified-Since: ' . gmdate('D, d M Y H:i:s T', $lastmodified)
 	));