From f13f67f0f19ee61dd648373e67a35136bd21fc78 Mon Sep 17 00:00:00 2001
From: HarelM <harel.mazor@gmail.com>
Date: Sat, 4 Sep 2021 21:53:07 +0300
Subject: [PATCH] Fixes #305 - offscreencanvas error

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

diff --git a/src/util/offscreen_canvas_supported.ts b/src/util/offscreen_canvas_supported.ts
index 44ddadc559..8aa07499cc 100644
--- a/src/util/offscreen_canvas_supported.ts
+++ b/src/util/offscreen_canvas_supported.ts
@@ -2,7 +2,7 @@ let supportsOffscreenCanvas: boolean | undefined | null;
 
 export default function offscreenCanvasSupported(): boolean {
     if (supportsOffscreenCanvas == null) {
-        supportsOffscreenCanvas = OffscreenCanvas &&
+        supportsOffscreenCanvas = typeof OffscreenCanvas !== 'undefined' &&
             new OffscreenCanvas(1, 1).getContext('2d') &&
             typeof createImageBitmap === 'function';
     }