/* * SPDX-FileCopyrightText: syuilo and misskey-project * SPDX-License-Identifier: AGPL-3.0-only */ const canvas = typeof OffscreenCanvas !== 'undefined' ? new OffscreenCanvas(1, 1) : undefined; const gl = canvas?.getContext('webgl2'); if (gl) { postMessage({ result: true }); } else { postMessage({ result: false }); }