HTTP/2 (originally named HTTP/2.0) is a major revision of the HTTP network protocol used by the World Wide Web. The standardization effort was supported by Chrome, Opera, Firefox, Internet Explorer 11, Safari, Amazon Silk, and Edge browsers. Most major browsers had added HTTP/2 support by the end of 2015.
No version of SGOS currently supports HTTP/2.
Disable HTTP/2 protocol in your browsers to allow the ProxySG appliance to load the webpage.
"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --disable-http2
For explicit ProxySG deployments, protocol detection can be used for HTTPS connections so that the HTTP traffic is tunneled through the appliance: