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-rw-r--r--program/include/rcube_shared.inc2
1 files changed, 1 insertions, 1 deletions
diff --git a/program/include/rcube_shared.inc b/program/include/rcube_shared.inc
index 97314ccd1..4119f1287 100644
--- a/program/include/rcube_shared.inc
+++ b/program/include/rcube_shared.inc
@@ -41,7 +41,7 @@ function send_nocacheing_headers()
header("Pragma: no-cache");
// We need to set the following headers to make downloads work using IE in HTTPS mode.
- if (isset($_SERVER['HTTPS']) || rcmail::get_instance()->config->get('use_https')) {
+ if (rcube_https_check()) {
header('Pragma: ');
header('Cache-Control: ');
}