Fixing SSR

frontend/src/app/app.module.server.ts

@@ -0,0 +1,23 @@
+import { HTTP_INTERCEPTORS } from '@angular/common/http';
+import { NgModule } from '@angular/core';
+import { ServerModule } from '@angular/platform-server';
+
+import { ZONE_SERVICE } from './injection-tokens';
+import { AppModule } from './app.module';
+import { AppComponent } from './components/app/app.component';
+import { HttpCacheInterceptor } from './services/http-cache.interceptor';
+import { ZoneService } from './services/zone.service';
+
+
+@NgModule({
+  imports: [
+    AppModule,
+    ServerModule,
+  ],
+  providers: [
+    { provide: HTTP_INTERCEPTORS, useClass: HttpCacheInterceptor, multi: true },
+    { provide: ZONE_SERVICE, useClass: ZoneService },
+  ],
+  bootstrap: [AppComponent],
+})
+export class AppServerModule {}