Merge pull request #14616 from IgniteUI/dpetev/ssr-error-theme-service

SSR error theme service

Author: ChronosSF

projects/bundle-test/src/app/app.config.ts

@@ -1,9 +1,16 @@
 import { ApplicationConfig } from '@angular/core';
-import { provideRouter } from '@angular/router';
+import { NavigationError, provideRouter, withNavigationErrorHandler } from '@angular/router';
 
 import { routes } from './app.routes';
 import { provideClientHydration } from '@angular/platform-browser';
 
 export const appConfig: ApplicationConfig = {
-  providers: [provideRouter(routes), provideClientHydration()]
+  providers: [
+    provideRouter(
+      routes,
+      // force failed routes to throw & fail the SSG part of the build
+      withNavigationErrorHandler((e: NavigationError) => { throw e; })
+    ),
+    provideClientHydration()
+  ]
 };

projects/igniteui-angular/src/lib/services/theme/theme.service.ts

@@ -38,8 +38,8 @@ export class ThemeService {
     }
 
     private init() {
-        const theme = globalThis
-            .getComputedStyle(this.document.body)
+        const theme = globalThis.window
+            ?.getComputedStyle(this.document.body)
             .getPropertyValue("--ig-theme")
             .trim();