From d1110eca38073c551e509dc55c564b8ed8472e64 Mon Sep 17 00:00:00 2001
From: Graham McIntire <graham@mcintire.me>
Date: Mon, 23 Mar 2026 13:43:37 -0500
Subject: [PATCH] fix: sanitize invalid map timestamps

---
 assets/js/map_helpers.ts | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/assets/js/map_helpers.ts b/assets/js/map_helpers.ts
index d7f79fa..513b68c 100644
--- a/assets/js/map_helpers.ts
+++ b/assets/js/map_helpers.ts
@@ -38,9 +38,11 @@ export function parseTimestamp(timestamp: string | number | Date | undefined): n
   if (typeof timestamp === "number") {
     return timestamp;
   } else if (typeof timestamp === "string") {
-    return new Date(timestamp).getTime();
+    const parsed = new Date(timestamp).getTime();
+    return Number.isNaN(parsed) ? Date.now() : parsed;
   } else if (timestamp instanceof Date) {
-    return timestamp.getTime();
+    const parsed = timestamp.getTime();
+    return Number.isNaN(parsed) ? Date.now() : parsed;
   }
   return Date.now();
 }