Upgrade to ModularStartup

MyApp.ServiceInterface/MyServices.cs

@@ -18,8 +18,7 @@ public class FallbackForClientRoutes
     public class MyServices : Service
     {
         //Return index.html for unmatched requests so routing is handled on client
-        public object Any(FallbackForClientRoutes request) => 
-            Request.GetPageResult("/");
+        public object Any(FallbackForClientRoutes request) => Request.GetPageResult("/");
 
         public object Any(Hello request)
         {

MyApp/Startup.cs

@@ -8,17 +8,22 @@
 using ServiceStack;
 using ServiceStack.Configuration;
 using MyApp.ServiceInterface;
+using ServiceStack.Script;
+using ServiceStack.Web;
+using System;
+using ServiceStack.Text;
+using ServiceStack.Logging;
 
 namespace MyApp
 {
-    public class Startup
+    public class Startup : ModularStartup
     {
-        public IConfiguration Configuration { get; }
-        public Startup(IConfiguration configuration) => Configuration = configuration;
+        public Startup(IConfiguration configuration) 
+            : base(configuration, typeof(MyServices).Assembly) {}
 
         // This method gets called by the runtime. Use this method to add services to the container.
         // For more information on how to configure your application, visit https://go.microsoft.com/fwlink/?LinkID=398940
-        public void ConfigureServices(IServiceCollection services)
+        public new void ConfigureServices(IServiceCollection services)
         {
         }
 
@@ -48,8 +53,9 @@ public override void Configure(Container container)
 
             SetConfig(new HostConfig
             {
+                UseSameSiteCookies = true,
                 AddRedirectParamsToQueryString = true,
-                DebugMode = AppSettings.Get(nameof(HostConfig.DebugMode), false)
+                DebugMode = AppSettings.Get(nameof(HostConfig.DebugMode), HostingEnvironment.IsDevelopment()),
             });
         }
     }