message: guard against zero window.devicePixelRatio
diff: /**
  - * Copyright (c) 2018-2021 mol* contributors, licensed under MIT, See LICENSE file for more info.
  + * Copyright (c) 2018-2022 mol* contributors, licensed under MIT, See LICENSE file for more info.
  *
  * @author Alexander Rose <alexander.rose@weirdbyte.de>
  */
  @@ -281,7 +281,7 @@ export function createContext(gl: GLRenderingContext, props: Partial<{ pixelScal
  gl,
  isWebGL2: isWebGL2(gl),
  get pixelRatio() {
  - const dpr = (typeof window !== 'undefined') ? window.devicePixelRatio : 1;
  + const dpr = (typeof window !== 'undefined') ? (window.devicePixelRatio || 1) : 1;
  return dpr * (props.pixelScale || 1);
  },
  