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-rw-r--r--program/lib/Roundcube/rcube_output.php2
1 files changed, 1 insertions, 1 deletions
diff --git a/program/lib/Roundcube/rcube_output.php b/program/lib/Roundcube/rcube_output.php
index b8ae86cf6..7ccf9a02e 100644
--- a/program/lib/Roundcube/rcube_output.php
+++ b/program/lib/Roundcube/rcube_output.php
@@ -162,7 +162,7 @@ abstract class rcube_output
header("Cache-Control: private, must-revalidate");
}
else {
- header("Cache-Control: private, no-cache, must-revalidate, post-check=0, pre-check=0");
+ header("Cache-Control: private, no-cache, no-store, must-revalidate, post-check=0, pre-check=0");
header("Pragma: no-cache");
}
}