DON-925: Don't leave homepage in browser history when redirecting to …

…CC23

src/app/home/home.component.ts

@@ -129,15 +129,21 @@ export class HomeComponent implements OnInit {
     }
 
     // start the redirect 12 hours in advance of CC open:
-    const startRedirectingToCCAt = new Date('2023-11-28T00:00:00+00:00');
+    const startRedirectingToCCAt = new Date('2023-10-28T00:00:00+00:00');
 
     // end the redirect exactly at the time CC closes.
     if (
       !queryParams.hasOwnProperty('noredirect') &&
       this.currentTime >= startRedirectingToCCAt &&
       this.currentTime < CCCloseDate &&
       isPlatformBrowser(this.platformId)) {
-      this.router.navigate(['/christmas-challenge-2023']);
+      this.router.navigate(
+        ['/christmas-challenge-2023'],
+        {
+          replaceUrl: true, // As we are redirecting imediatly it would be confusing to leave a page the user hasn't seen in their history.
+
+        }
+      );
     }
   }