Make templates work with nonempty baseUrls (e.g., IIS virtual directories)

templates/ReactReduxSpa/ClientApp/boot-server.tsx

@@ -12,15 +12,17 @@ export default createServerRenderer(params => {
     return new Promise<RenderResult>((resolve, reject) => {
         // Prepare Redux store with in-memory history, and dispatch a navigation event
         // corresponding to the incoming URL
+        const basename = params.baseUrl.substring(0, params.baseUrl.length - 1); // Remove trailing slash
+        const urlAfterBasename = params.url.substring(basename.length);
         const store = configureStore(createMemoryHistory());
-        store.dispatch(replace(params.location));
+        store.dispatch(replace(urlAfterBasename));
 
         // Prepare an instance of the application and perform an inital render that will
         // cause any async tasks (e.g., data access) to begin
         const routerContext: any = {};
         const app = (
             <Provider store={ store }>
-                <StaticRouter context={ routerContext } location={ params.location.path } children={ routes } />
+                <StaticRouter basename={ basename } context={ routerContext } location={ params.location.path } children={ routes } />
             </Provider>
         );
         renderToString(app);