copySvgToClipboard.js

async function copyImageToClipboard(img) {
  const src = img.src
  const imageMimeType = getImageMimeTypeFromUrl(src)
  const blob = imageMimeType === 'image/svg' 
    ? await getTextBlobFromUrl(src) 
    : await getImageBlobFromUrl(src)
  
  await navigator.clipboard.write([
    new ClipboardItem({
      [blob.type]: blob
    })
  ])
}

async function getTextBlobFromUrl(url) {
  const response = await fetch(url);
  const source = await response.text();
  return new Blob([source], { type: 'text/plain' });
};

copyImageToClipboard(document.querySelector('.image-to-copy'))