小编bos*_*101的帖子

我的firefox扩展有一个对象myExt.

myExt = {
 request: function(){ 
    //adds dynamic script element to the current webpage's head tag
 },
 callback: function(json) { 
    //do something with this 
 } 
};

myExt.request将一个动态添加的脚本元素添加到返回json的服务器,我希望将json发送到我的扩展的js代码中存在的myExt.callback.

从我的扩展

//from my extension, i add a script element
myExt.request();

ping服务器,返回网页

//from server i get the following response
myExt.callback ( {"some":"json"}) ;

//but the window doesnt find a reference to myExt

如何从网页中引用myExt变量？