Version 5.0.13

applications/cms/interface/file/file.php

@@ -80,6 +80,7 @@ try
 	Output::i()->sendHeader( "Content-Length: " . $file->filesize() );
 	Output::i()->sendHeader( "Content-Security-Policy: default-src 'none'; sandbox" );
 	Output::i()->sendHeader( "X-Content-Security-Policy:  default-src 'none'; sandbox" );
+	Output::i()->sendHeader( "Cross-Origin-Opener-Policy: same-origin" );
 
 	$file->printFile();
 	exit;