在我的Stackoverflow文件夹中,有stackoverflow.ico2个波纹管文件。将其导入Chrome时,它会在地址栏中显示该图标,但是当我单击它时,Chrome不会打开任何新标签。我究竟做错了什么?
manifest.json
{
  "name": "Stackoverflow",
  "version": "1",
  "browser_action":
  {
    "default_icon": "stackoverflow.ico"
  },
  "background":
  {
    "page": "index.html"
  },
  "permissions": ["tabs"],
  "manifest_version": 2
}
index.html
<html>
  <head>
    <script>
      chrome.browserAction.onClicked.addListener(function(activeTab)
      {
        var newURL = "http://stackoverflow.com/";
        chrome.tabs.create({ url: newURL });
      });
    </script>
  </head>
</html>