As a proxy admin, you've been tasked with determining if gRPC services are supported through Broadcom Edge SWG (formerly ProxySG) appliances.
For background, gRPC related services are designed to function via HTTP/2, which is a major revision of the HTTP network protocol used by the World Wide Web. Despite the current limitation that gRPC services cannot be directly called via today's web browsers, two common approaches exist that allow gRPC use via browser app:
Since gRPC simply defines a protocol over HTTP/2 via headers and data, gRPC services are expected to function on appliances running versions of SGOS that include support for HTTP/2 (SGOS 220.127.116.11 or later). This remains valid as long as the gRPC calls adhere to HTTP/2 standards appropriately.