From 8efb1eea43a97bc995e81dddbe17f914ad504079 Mon Sep 17 00:00:00 2001
From: Andreas Hocevar <andreas.hocevar@gmail.com>
Date: Tue, 21 Jul 2020 22:35:48 +0200
Subject: [PATCH] Reuse empty canvas

---
 src/ol/renderer/canvas/Layer.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/ol/renderer/canvas/Layer.js b/src/ol/renderer/canvas/Layer.js
index 65b6a84e98..346e4b853e 100644
--- a/src/ol/renderer/canvas/Layer.js
+++ b/src/ol/renderer/canvas/Layer.js
@@ -95,7 +95,11 @@ class CanvasLayerRenderer extends LayerRenderer {
         context = canvas.getContext('2d');
       }
     }
-    if (context && context.canvas.style.transform === transform) {
+    if (
+      context &&
+      (context.canvas.width === 0 ||
+        context.canvas.style.transform === transform)
+    ) {
       // Container of the previous layer renderer can be used.
       this.container = target;
       this.context = context;