Prevent caching of redirects in shared caches

see #4273

diff --git a/wcfsetup/install/files/lib/util/HeaderUtil.class.php b/wcfsetup/install/files/lib/util/HeaderUtil.class.php
index c052c8585c9c531d487e52cc7f8c4a8955db3117..8c62084ba2ee4ca547872fb1bad2d948829f6c59 100644 (file)
--- a/wcfsetup/install/files/lib/util/HeaderUtil.class.php
+++ b/wcfsetup/install/files/lib/util/HeaderUtil.class.php
@@ -187,6 +187,7 @@ final class HeaderUtil
             }
         }
 
+        \header('cache-control: private');
         \header('Location: ' . $location);
     }