I don't like to punt, but this seems like perhaps it's on your end. Thankfully, we haven't had other complaints of this nature and it sounds like perhaps you have a security layer (firewall, browser plugin perhaps) that is not giving you a neutral testbed.

One surefire way to tell is to try the site in Incognito Mode. You could also try on your phone, although admittedly most of the demos are still slanted towards desktop interaction. That's 100% on us and not the tech itself.