[ci skip] Fix #3778
diff --git a/system/helpers/download_helper.php b/system/helpers/download_helper.php
index 95c94a1..73f6456 100644
--- a/system/helpers/download_helper.php
+++ b/system/helpers/download_helper.php
@@ -69,16 +69,14 @@
}
elseif ($data === NULL)
{
- if (@is_file($filename) && ($filesize = @filesize($filename)) !== FALSE)
- {
- $filepath = $filename;
- $filename = explode('/', str_replace(DIRECTORY_SEPARATOR, '/', $filename));
- $filename = end($filename);
- }
- else
+ if ( ! @is_file($filename) OR ($filesize = @filesize($filename)) === FALSE)
{
return;
}
+
+ $filepath = $filename;
+ $filename = explode('/', str_replace(DIRECTORY_SEPARATOR, '/', $filename));
+ $filename = end($filename);
}
else
{
@@ -140,14 +138,7 @@
header('Expires: 0');
header('Content-Transfer-Encoding: binary');
header('Content-Length: '.$filesize);
-
- // Internet Explorer-specific headers
- if (isset($_SERVER['HTTP_USER_AGENT']) && strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE') !== FALSE)
- {
- header('Cache-Control: no-cache, no-store, must-revalidate');
- }
-
- header('Pragma: no-cache');
+ header('Cache-Control: private, no-transform, no-store, must-revalidate');
// If we have raw data - just dump it
if ($data !== NULL)