Explicitly check for 2D OffscreenCanvas support #132
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Thanks, this makes sense! |
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In Firefox you can enable "offscreen canvas" support in
about:configwhich will makeOffscreenCanvasavailable, butgetContext('2d')will fail with a not implemented error since only WebGL offscreen canvases are supported. This simply checks for the existence ofOffscreenCanvasRenderingContext2Das well when determining whether offscreen canvases can be utilized.