lms.simplilearn.com - not showing contents on MAC just shows progress bar

Hello,

I am not able to load the site https://lms.simplilearn.com/ on MAC laptop using both safari and chrome browsers. I only see progress bar loading but not result. I tried multiple times but no luck.

Is your site Mac compliant ? Could you please help ? Please see attached screen shot.

Note: I also created a ticket from contact me form (824217).

Thanks
VIjay