From 3317a64bc66c80eae20264c6ea48d3adc203369a Mon Sep 17 00:00:00 2001
From: you <you@example.com>
Date: Sun, 22 Mar 2026 04:52:45 +0000
Subject: [PATCH] fix: null-guard animLayer/pathsLayer in animation cleanup

setInterval callbacks fire after navigating away from live map,
when layers are already destroyed.
---
 public/index.html | 2 +-
 public/live.js    | 8 +++-----
 2 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/public/index.html b/public/index.html
index 07b4bbc1..78e058ee 100644
--- a/public/index.html
+++ b/public/index.html
@@ -90,7 +90,7 @@
   <script src="nodes.js?v=1774126708" onerror="console.error('Failed to load:', this.src)"></script>
   <script src="traces.js?v=1774135052" onerror="console.error('Failed to load:', this.src)"></script>
   <script src="analytics.js?v=1774126708" onerror="console.error('Failed to load:', this.src)"></script>
-  <script src="live.js?v=1774126708" onerror="console.error('Failed to load:', this.src)"></script>
+  <script src="live.js?v=1774155165" onerror="console.error('Failed to load:', this.src)"></script>
   <script src="observers.js?v=1774290000" onerror="console.error('Failed to load:', this.src)"></script>
   <script src="observer-detail.js?v=1774028201" onerror="console.error('Failed to load:', this.src)"></script>
   <script src="node-analytics.js?v=1774126708" onerror="console.error('Failed to load:', this.src)"></script>
diff --git a/public/live.js b/public/live.js
index ecf24427..f291c547 100644
--- a/public/live.js
+++ b/public/live.js
@@ -1685,13 +1685,12 @@
 
       if (step >= steps) {
         clearInterval(interval);
-        animLayer.removeLayer(dot);
+        if (animLayer) animLayer.removeLayer(dot);
 
         recentPaths.push({ line, glowLine: contrail, time: Date.now() });
         while (recentPaths.length > 5) {
           const old = recentPaths.shift();
-          pathsLayer.removeLayer(old.line);
-          pathsLayer.removeLayer(old.glowLine);
+          if (pathsLayer) { pathsLayer.removeLayer(old.line); pathsLayer.removeLayer(old.glowLine); }
         }
 
         setTimeout(() => {
@@ -1700,8 +1699,7 @@
             fadeOp -= 0.1;
             if (fadeOp <= 0) {
               clearInterval(fi);
-              pathsLayer.removeLayer(line);
-              pathsLayer.removeLayer(contrail);
+              if (pathsLayer) { pathsLayer.removeLayer(line); pathsLayer.removeLayer(contrail); }
               recentPaths = recentPaths.filter(p => p.line !== line);
             } else {
               line.setStyle({ opacity: fadeOp });