Public Preview: Azure Front Door WebSocket

We are announcing the public preview of WebSocket on Azure Front Door Standard and Premium. WebSocket is enabled by default without customer configurations on Azure Front Door. WebSocket enables full duplex communication between a server and a client over a long-running TCP connection. It eliminates the needs for polling as required in HTTP, avoids some of the overhead of HTTP, and can reuse the same TCP connection for multiple request/responses resulting in a more efficient utilization of resources. This enables more interactive and real-time scenarios. WebSocket can be used for apps or websites which require real-time updates/communications or continuous streams of data, such as chats, dashboard, finance stock info update, GPS, online education, live streaming and game apps. For more details, please refer to [Azure Front Door WebSocket](https://learn.microsoft.com/en-us/azure/frontdoor/standard-premium/websocket) documentation.