Safari – Javascript issue

hi guys,

I’m getting some strange error while trying to access iThemes security dashboard on Safari:

“iThemes Security requires Javascript in order for the settings to be modified. Please enable Javascript to configure the settings.”

Is this Safari issue ? Or rather server side ?
It works on other browsers. What is interesting, it works on safari too but on a different server ?? Bizarre….

https://www.ads-software.com/plugins/better-wp-security/