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willReadFrequently on getResult() canvas ? #287

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Dylan190774 opened this issue Sep 21, 2024 · 1 comment
Open

willReadFrequently on getResult() canvas ? #287

Dylan190774 opened this issue Sep 21, 2024 · 1 comment

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@Dylan190774
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Dylan190774 commented Sep 21, 2024 •
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In devtools console I get the following warning:

Canvas2D: Multiple readback operations using getImageData are faster with the willReadFrequently attribute set to true. See: https://html.spec.whatwg.org/multipage/canvas.html#concept-canvas-will-read-frequently

This happens when I use const result = this.$refs.cropper.getResult(); a few times after another and then do getImageData on the context of result.canvas

Any idea how to set willReadFrequently on the canvas of getResult ?
@Dylan190774
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Found the solution, I just had to use :

const ctx = canvas.getContext('2d', { willReadFrequently: true });
when getting the context of the canvas.

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@Dylan190774