From e2a319ae082941c7d0bfd406f4436cda0bb925e2 Mon Sep 17 00:00:00 2001
From: Mathieu Moran <mathieumoran1@gmail.com>
Date: Mon, 10 Aug 2026 04:30:54 -0400
Subject: [PATCH] Fix history.js null guard for speed and distance
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formatSpeed and formatDistance return '—' on null/undefined values.
Server trips may have null avg/max speed if no speed data was recorded.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
---
 static/js/history.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/static/js/history.js b/static/js/history.js
index 356b293..30aa38f 100644
--- a/static/js/history.js
+++ b/static/js/history.js
@@ -59,10 +59,12 @@
     }
 
     function formatDistance(kilometers) {
+        if (kilometers == null) return '—';
         return `${kilometers.toFixed(kilometers < 1 ? 2 : 1)} km`;
     }
 
     function formatSpeed(kilometersPerHour) {
+        if (kilometersPerHour == null) return '—';
         return `${kilometersPerHour.toFixed(1)} km/h`;
     }