From 1868338b162f7167b25604a25e5a5a21e432c301 Mon Sep 17 00:00:00 2001
From: Josh Lee <jleedev@gmail.com>
Date: Wed, 15 Jan 2025 14:13:35 -0500
Subject: [PATCH] Fix race in hillshade control initialization (#1188)

---
 src/js/hillshade_control.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/js/hillshade_control.js b/src/js/hillshade_control.js
index 84fe00c7d..3f8eee0a6 100644
--- a/src/js/hillshade_control.js
+++ b/src/js/hillshade_control.js
@@ -30,7 +30,9 @@ export class HillshadeControl {
 
     this._button = document.createElement("button");
     this._button.className = "maplibregl-ctrl-terrain";
-    this._updateButton();
+    Promise.resolve(map.loaded() || map.once("load")).then(() =>
+      this._updateButton()
+    );
     this._button.addEventListener("click", this._onClick);
     this._container.append(this._button);