在Web Worker中用字符替换所有html实体的替代方法

const parser = new DOMParser();
const doc = parser.parseFromString(htmlString, 'text/html');

function replaceHtmlEntities(node) {
  if (node.nodeType === Node.TEXT_NODE) {
    node.textContent = node.textContent.replace(/&lt;/g, '<')
                                         .replace(/&gt;/g, '>')
                                         .replace(/&amp;/g, '&')
                                         .replace(/&quot;/g, '"')
                                         .replace(/&apos;/g, "'");

  } else {
    for (let i = 0; i < node.childNodes.length; i++) {
      replaceHtmlEntities(node.childNodes[i]);
    }
  }
}

replaceHtmlEntities(doc);

const result = new XMLSerializer().serializeToString(doc.documentElement);