From 06c0dc82710ee63b4955cb048c94528fe040af37 Mon Sep 17 00:00:00 2001
From: uku <hi@uku.moe>
Date: Mon, 25 Nov 2024 16:36:34 +0100
Subject: [PATCH] fix: add beforeunload listener to game page

---
 src/routes/game/+page.svelte | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/routes/game/+page.svelte b/src/routes/game/+page.svelte
index 32bc598..4e24f90 100644
--- a/src/routes/game/+page.svelte
+++ b/src/routes/game/+page.svelte
@@ -2,6 +2,7 @@
 	import type { CheckData, CheckResponse, ClientGameData, MapData } from "$lib/types";
 	import { goto } from "$app/navigation";
 	import { page } from "$app/stores";
+	import { onMount } from "svelte";
 	import L from "leaflet";
 
 	import "leaflet/dist/leaflet.css";
@@ -23,6 +24,10 @@
 	let solutionMarker: L.Marker | null = $state(null);
 	let solutionLine: L.Polyline | null = $state(null);
 
+	onMount(() => {
+		window.addEventListener("beforeunload", (e) => e.preventDefault());
+	});
+
 	async function fetchMap(): Promise<MapData> {
 		return fetch("/api/map?" + $page.url.searchParams).then((r) => r.json());
 	}