My application stop working in Chrome 104, 105. Can anyone confirm this issue?

steps:

• transparentDataArray: Uint8ClampedArray = new Uint8ClampedArray(w, h);
• insert some values, leave 0,0,0,0 for transparent points
• putImageData on context
• drawImage over another context holding an image => expected (and working until 104) - replaces only non-transparent points => chrome 104 - replace transparent points with white color

const canvasMain = document.getElementById('main');
const contextMain = canvasMain.getContext('2d');

const canvas2 = document.createElement('canvas')
const context2 = canvas2.getContext('2d');

const drawData = () => {
  console.log("draw data")
  contextMain.putImageData(canvasDataInitial,  0, 0);

  const dataArray = new Uint8ClampedArray(w * h * 4);
  for (let i = 0; i < w * h; i = i   4) {
    dataArray[i] = 0;
    dataArray[i   1] = 150;
    dataArray[i   2] = 35;
    dataArray[i   3] = i > w * h / 3 ? 0 : 255;
  }
  canvas2.width = w;
  canvas2.height = h;
  context2.putImageData(new ImageData(dataArray, w, h), 0, 0);

  contextMain.drawImage(canvas2, 0, 0);
}

let canvasDataInitial;
let w,h;
const image = new Image();

image.onload = () => {
  w = image.width;
  h = image.height;

  contextMain.drawImage(image, 0, 0, w, h);
  
  canvasDataInitial = contextMain.getImageData(0, 0, canvasMain.width, canvasMain.height);

  drawData();
  drawData();
  setTimeout(drawData, 1000);
}

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<body>
  <canvas id="main" width="200" height="200" ></canvas>
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CodePudding user response：

The answer is "Yes, it's confirmed". The code snippet above proves Chrome behaves differently and oddly. Reported to chromium buglist.