У вашего броузера проблема в совместимости с HTML5
As at Open-AudIT 2.3.2 and later, we have introduced some easy to use and extremely powerful options for discovering devices. These options centre around directing Nmap on how to discover devices.
We have grouped these options into what we're calling Discovery Scan Options. We ship seven different groups of options (items) by default that cover the common use-cases.
This benefits Community, Professional and Enterprise customers.