From c7eac98de4063046aad7f9decbda0b2849793b41 Mon Sep 17 00:00:00 2001
From: Andri <5224431+ndri@users.noreply.github.com>
Date: Tue, 31 Mar 2026 15:23:13 +0200
Subject: [PATCH] Fix race condition in asset loader when script tag hasn't
 loaded

When multiple components mount simultaneously, the script tag may already
exist in the DOM but mapboxgl hasn't finished loading yet. The loader
would call cb() immediately, causing TypeError when trying to set
accessToken on undefined.

Now checks if window.mapboxgl is available. If not, waits for the
existing script's load event before calling the callback.
---
 src/lib/asset-loader.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/lib/asset-loader.js b/src/lib/asset-loader.js
index 47bb1b0..a9295ad 100644
--- a/src/lib/asset-loader.js
+++ b/src/lib/asset-loader.js
@@ -4,7 +4,11 @@ function load (assets, cb) {
 
     if (existing) {
       if (type === 'script') {
-        cb()
+        if (window.mapboxgl) {
+          cb()
+        } else {
+          existing.addEventListener('load', () => cb(), { once: true })
+        }
       }
       return
     }