diff --git a/packages/frontend/src/workers/test-webgl2.ts b/packages/frontend/src/workers/test-webgl2.ts
index 4769524d9..8f13c57ca 100644
--- a/packages/frontend/src/workers/test-webgl2.ts
+++ b/packages/frontend/src/workers/test-webgl2.ts
@@ -1,5 +1,5 @@
-const canvas = new OffscreenCanvas(1, 1);
-const gl = canvas.getContext('webgl2');
+const canvas = globalThis.OffscreenCanvas && new OffscreenCanvas(1, 1);
+const gl = canvas?.getContext('webgl2');
 if (gl) {
     postMessage({ result: true });
 } else {