code: function findTagPattern (element, ignore) {
    const tagName = element.tagName.toLowerCase()
    if (checkIgnore(ignore.tag, null, tagName)) {
      return null
    }
    return tagName
  }
docs: Lookup tag identifier
  
  @param  {HTMLElement} element - [description]
  @param  {Object}      ignore  - [description]
  @return {boolean}             - [description]