From 33cd502536e629abafd99a1d8d679db3d386a87f Mon Sep 17 00:00:00 2001
From: Xiaoji Chen <Pessimistress@users.noreply.github.com>
Date: Tue, 8 Feb 2022 10:59:37 -0800
Subject: [PATCH] Add sanity check before adding layer (#1735)

---
 src/components/layer.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/components/layer.ts b/src/components/layer.ts
index 68473c16..ced51ec3 100644
--- a/src/components/layer.ts
+++ b/src/components/layer.ts
@@ -61,7 +61,7 @@ function updateLayer(map: MapboxMap, id: string, props: LayerProps, prevProps: L
 
 function createLayer(map: MapboxMap, id: string, props: LayerProps) {
   // @ts-ignore
-  if (map.style && map.style._loaded) {
+  if (map.style && map.style._loaded && map.getSource(props.source)) {
     const options: LayerProps = {...props, id};
     delete options.beforeId;