md-wechat/src/scripts/converter.js

import juice from 'juice'

export function solveWeChatImage() {
  const clipboardDiv = document.getElementById(output);
  const images = clipboardDiv.getElementsByTagName("img");
  for (let i = 0; i < images.length; i++) {
    const image = images[i];
    const width = image.getAttribute("width");
    const height = image.getAttribute("height");
    image.removeAttribute("width");
    image.removeAttribute("height");
    image.style.width = width;
    image.style.height = height;
  }
}
export function solveHtml() {
  const element = document.getElementById("output-wrapper");
  let html = element.innerHTML;
  let res = "";
  res = juice.inlineContent(
    html,
    {
      inlinePseudoElements: true,
      preserveImportant: true
    }
  );
  console.log(res);
  return res;
}