获取网站图标

let links = document.querySelectorAll("link[rel*='icon']");
Array.prototype.filter.call(links, function(link) {
    let url = link.getAttribute('href');
    if (url.substring(0, 2) == '//') {
      console.log(`%c图标地址：%chttp:${url}`,"line-height:28px;padding:4px;background:#a1afc9;color:#000;font-size:16px;margin-right:15px", "color:#3fa9f5;line-height:28px;font-size:16px;");
    } else if (url.substring(0, 4) == 'http' || url.substring(0, 5) == 'https') {
      console.log(url);
    } else {
      let allurl = (url.substring(0, 1) == '/') ?
      'http://' + window.location.host + url : 
      'http://' + window.location.host + '/' + url;
      console.log(`%c图标地址：%c${allurl}`,"line-height:28px;padding:4px;background:#a1afc9;color:#000;font-size:16px;margin-right:15px", "color:#3fa9f5;line-height:28px;font-size:16px;");
    }
});