Merge pull request #322 from graphql-dotnet/swallow-pns-exceptions

catch PlatformNotSupportedException for unsupported Options properties

Author: rose-a

src/GraphQL.Client/Websocket/GraphQLHttpWebSocket.cs

@@ -402,12 +402,26 @@ public Task InitializeWebSocket()
 #else
                 _clientWebSocket = new ClientWebSocket();
                 _clientWebSocket.Options.AddSubProtocol("graphql-ws");
-                if(!System.Runtime.InteropServices.RuntimeInformation.IsOSPlatform(System.Runtime.InteropServices.OSPlatform.Create("BROWSER")))
+
+                // the following properties are not supported in Blazor WebAssembly and throw a PlatformNotSupportedException error when accessed
+                try
                 {
-                    // the following properties are not supported in Blazor WebAssembly and throw a PlatformNotSupportedException error when accessed
                     _clientWebSocket.Options.ClientCertificates = ((HttpClientHandler)Options.HttpMessageHandler).ClientCertificates;
+                }
+                catch (PlatformNotSupportedException)
+                {
+                    Debug.WriteLine("property 'ClientWebSocketOptions.ClientCertificates' not supported by current platform");
+                }
+
+                try
+                {
                     _clientWebSocket.Options.UseDefaultCredentials = ((HttpClientHandler)Options.HttpMessageHandler).UseDefaultCredentials;
                 }
+                catch (PlatformNotSupportedException)
+                {
+                    Debug.WriteLine("Property 'ClientWebSocketOptions.UseDefaultCredentials' not supported by current platform");
+                }
+
                 Options.ConfigureWebsocketOptions(_clientWebSocket.Options);
 #endif
                 return _initializeWebSocketTask = ConnectAsync(_internalCancellationToken);