code: function filterScriptTag(html, config) {
      var result;
  
      if (config.removeMatchedTag) {
          result = html.replace(REGEXP_TAG_SCRIPT, '');
      } else {
          result = html.replace(REGEXP_TAG_SCRIPT, function(body) {
              return escapeTags(body);
          });
      }
  
      return result;
  }
docs: 过滤 script 标签
  
  @param {String} html
  @param {Object} config, 配置对象
  @return {String}