makeImageData function sometimes output a img with black border

@hoganhan wrote:

Hi,

image.png782x540 35.8 KB

as the image above, it has a black border on the right and bottom side, and here is my code for it

mainDiagram.makeImageData({ background: "white", type: "image/jpeg", detail:0.5 });

The fun thing is it never happened while i am developing the program, but when my co-worker run this program on their PC, the output image will "sometimes" has that black border.

So am i missing something, or what can i do to fix this problem?

Thank you!

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