From fe71b47232accbe26a5acc2e2c5bffe74219e551 Mon Sep 17 00:00:00 2001
From: "Mr.doob" <info@mrdoob.com>
Date: Thu, 11 Nov 2021 15:58:54 +0000
Subject: [PATCH] WebGLRenderer: Check if _canvas has setAttribute before
 calling it.

---
 src/renderers/WebGLRenderer.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/renderers/WebGLRenderer.js b/src/renderers/WebGLRenderer.js
index 2b7274120eefe2..b433dfacccdb17 100644
--- a/src/renderers/WebGLRenderer.js
+++ b/src/renderers/WebGLRenderer.js
@@ -216,10 +216,10 @@ function WebGLRenderer( parameters = {} ) {
 			failIfMajorPerformanceCaveat: _failIfMajorPerformanceCaveat
 		};
 
-		_canvas.setAttribute( 'data-engine', `three.js r${REVISION}` );
+		// OffscreenCanvas does not have setAttribute, see #22811
+		if ( 'setAttribute' in _canvas ) _canvas.setAttribute( 'data-engine', `three.js r${REVISION}` );
 
 		// event listeners must be registered before WebGL context is created, see #12753
-
 		_canvas.addEventListener( 'webglcontextlost', onContextLost, false );
 		_canvas.addEventListener( 'webglcontextrestored', onContextRestore, false );