react-native之黄色警告Remote debugger is in a background tab which may cause apps to perform slowly. Fix this by foregrounding the tab (or opening it in a separate window).

百度了一圈也没找到问题，感觉有点摸不着头脑

原来，只要把那个chrome的Tab页保持最前，浏览器窗口不要最小化就好了。

参考：https://www.cnblogs.com/baiban/p/6133204.html