Redirected to home page after OAuth2 registration

Author: zonia3000

src/routes/+page.svelte

@@ -10,12 +10,24 @@
 
 	let mounted = $state(false);
 
+	let temporaryMessage = $state('');
+
 	onMount(() => {
 		mounted = true;
+		if (sessionStorage && sessionStorage.getItem('temporary-message')) {
+			temporaryMessage = sessionStorage.getItem('temporary-message') || '';
+			sessionStorage.removeItem('temporary-message');
+		}
 	});
 </script>
 
 <div class="container mt-3">
+	{#if temporaryMessage}
+		<div class="alert alert-info">
+			{temporaryMessage}
+		</div>
+	{/if}
+
 	<img alt="Fractal logo" src={logoMedium} class="float-end" id="fractal-logo-home" />
 
 	<h1 class="fw-light">Welcome to Fractal web client.</h1>

src/routes/auth/login/oauth2/+page.svelte

@@ -1,14 +1,17 @@
 <script>
+	import { goto } from '$app/navigation';
 	import { page } from '$app/state';
+	import { onMount } from 'svelte';
 	const message = $derived(page.data.message);
+
+	onMount(async () => {
+		if (message) {
+			if (sessionStorage) {
+				sessionStorage.setItem('temporary-message', message);
+			}
+			await goto('/');
+		}
+	});
 </script>
 
-<div class="container mt-4">
-	{#if message}
-		<div class="alert alert-info">
-			{message}
-		</div>
-	{:else}
-		Loading...
-	{/if}
-</div>
+<div class="container mt-5">Loading...</div>