问如果else语句不执行else语句，则使用Chrome扩展

EN

chrome.browserAction.onClicked.addListener(function(tab) {
console.log('Get URL');
chrome.tabs.query(
    {currentWindow: true, url: 'https://www.google.com/*'},
    function(tabs) {
    tabs.forEach(function(tab) {
      console.log('Tab ID, URL: ', tab.id, ' ', tab.url);
          if(tab.url !== '')
          {
            //tab.focus();
            console.log('if !== \'\'');
            chrome.browserAction.setBadgeText({text: "YES"});
            chrome.browserAction.setBadgeBackgroundColor({color: "GREEN"})
            var updateProperties = {"active": true};
            chrome.tabs.update(tab.id, updateProperties, function(tab){ });
          }
          else
          {
            chrome.windows.create({ url: "https://www.google.com", type: "popup" });
            chrome.browserAction.setBadgeText({text: "NO"});
            chrome.browserAction.setBadgeBackgroundColor({color: "RED"})
          }
    });
});