获取本网站引用的第三方资源

getThirdResoure.js

function getThirdResoure() {
  var resp = null;
  var tags = document.querySelectorAll('iframe[src],frame[src],script[src],link[rel=stylesheet],object[data],embed[src]');
  for(var i = 0; i < tags.length; i++){
    var tag = tags[i];
    var a = document.createElement('a');
    a.href = tag.src||tag.href||tag.data;
    if(a.hostname != location.hostname){
      resp = resp || [];
      resp.push({name: tag.localName, href: a.href});
    }
  }
  return resp;
}