Update WebSocket examples to set TLS SNI

example/websocket/client/async-ssl/websocket_client_async_ssl.cpp

@@ -114,6 +114,16 @@ public:
         // Set a timeout on the operation
         beast::get_lowest_layer(ws_).expires_after(std::chrono::seconds(30));
 
+        // Set SNI Hostname (many hosts need this to handshake successfully)
+        if(! SSL_set_tlsext_host_name(
+                ws_.next_layer().native_handle(),
+                host_.c_str()))
+        {
+            ec = beast::error_code(static_cast<int>(::ERR_get_error()),
+                net::error::get_ssl_category());
+            return fail(ec, "connect");
+        }
+
         // Perform the SSL handshake
         ws_.next_layer().async_handshake(
             ssl::stream_base::client,