Fixed WCFSetup

diff --git a/wcfsetup/install/files/lib/util/HeaderUtil.class.php b/wcfsetup/install/files/lib/util/HeaderUtil.class.php
index e7671f0d238ef71164775aa46fea3711bc73f980..9ab8b9aa8405f477d085d7b592f12bda5cdeee9f 100644 (file)
--- a/wcfsetup/install/files/lib/util/HeaderUtil.class.php
+++ b/wcfsetup/install/files/lib/util/HeaderUtil.class.php
@@ -55,7 +55,7 @@ final class HeaderUtil {
                @header('Content-Type: text/html; charset=UTF-8');
                
                // send no cache headers
-               if (!WCF::getSession()->spiderID) {
+               if (!PACKAGE_ID || !WCF::getSession()->spiderID) {
                        self::sendNoCacheHeaders();
                }