Fix for #2986

[vishwas-r]

Fix for "Canvas2D: Multiple readback operations using getImageData are faster with the willReadFrequently attribute set to true" warning in chrome browser

Summary

This PR fixes/implements the following bugs/features

• Issue Canvas2D: Multiple readback operations using getImageData are faster with the willReadFrequently attribute set to true #2986

Closing issues
Fixes #2986

[Sharcoux]

Can be tested in @cantoo/html2canvas

[maurice-ellis]

@vishwas-r , believe this willReadFrequently has to be set on the line above because the context is used below on line 22.

const ctx = canvas.getContext('2d');
const clonedCtx = clonedCanvas.getContext('2d', { willReadFrequently: true });

clonedCtx.putImageData(ctx.getImageData(0, 0, canvas.width, canvas.height), 0, 0);

@Sharcoux , not sure if you can update yours, I would like to use it.