I’m also having the same issue with the demo in Chrome and Safari (both on MacOSX and iOS, have not tried Windows yet). Chrome is up to date. I tried clearing the browser cookies/cache, but no luck. Also, tried loading it over cellular to make sure it was not a firewall issue, but that didn’t do the trick either.
When I view the developer tools for the page I get a couple errors. The first one is “DevTools failed to parse SourceMap: http://demo.inductiveautomation.com/res/perspective/css/PerspectiveClient.css.map”. The second error is “WebSocket connection to ‘ws://demo.inductiveautomation.com/system/pws/OnlineDemo/published/3c3819ad’ failed: Connection closed before receiving a handshake response”. When this second error occurs, the demo cycles back to the “Authenticating” and then back to “Connecting” again (and the error occurs again). Just keeps doing this on an endless loop.
Let me know if there is anything else I can check on my end.