在检测Chrome扩展安装或不使用JavaScript时出现错误
问题描述：
这是我的代码，
var myExtension = chrome.management.get( "my_extention_id" );
if (myExtension.enabled)
{
// installed
}
else { ... }
来源： http ：//developer.chrome.com/extensions/management.html#method-get
i已经尝试过这种方法。但我收到以下错误：Uncaught TypeError：无法读取未定义的属性'get'
source : http://developer.chrome.com/extensions/management.html#method-get i have tried this method. But i'm getting following error: Uncaught TypeError: Cannot read property 'get' of undefined
答
如果未定义，重新丢失清单中的管理声明：
If it's undefined then you're missing the management declaration in the manifest:
"permissions": [
"management"
],