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Bug error: The image argument is a canvas element with a width or height of 0. when canvas.width or height less than 1 #2981

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herbertxy opened this issue Oct 28, 2022 · 1 comment · May be fixed by #2982
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Bug error: The image argument is a canvas element with a width or height of 0. when canvas.width or height less than 1 #2981

herbertxy opened this issue Oct 28, 2022 · 1 comment · May be fixed by #2982

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@herbertxy
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Bug reports:
Failed to execute 'createPattern' on 'CanvasRenderingContext2D': The image argument is a canvas element with a width or height of 0.

image

I console the value of width and height , find that the height is less than 1 caught this error
image
image

Specifications:

  • html2canvas version tested with: 1.4.1
  • Browser & version: chrome latest
  • Operating system: windows 10

solution：
calculateBackgroundRendering function return value width height may be less than 1
and createPattern function throw error
@herbertxy herbertxy linked a pull request Oct 28, 2022 that will close this issue
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@herbertxy
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hope to approval #2982

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fix: calculateBackgroundRendering may return width or height less than 1 herbertxy/html2canvas
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@herbertxy