xss prevention
Issue #6
new
check params for potential vulnerabilities as xss in https://bitbucket.org/PierreCorell/mod_flexpopup/src/d28dd33d0a203959e2404b3bfbd0a5c23fb02a4f/mod_flexpopup.php?at=master&fileviewer=file-view-default#mod_flexpopup.php-37