从iframe发送Google Analytics（分析）事件？

Question

I have a web app that is a single page with an iframe. Page and iframe are from the same origin. I'm trying to send an event to google analytics from within an iframe like this:

if(typeof parent.ga !== 'undefined') parent.ga('send','event', Category, Action, Label );

I also tried this approach:

if(typeof parent.ga !== 'undefined') parent.sendGaEvent(Category, Action, Label);

And in the parent the function looks like this:

function sendGaEvent(Category, Action, Label){
   ga('send','event', Category, Action, Label);
}

None of those approaches seem to work. The events don't show up in Google Analytics. However if I send an event like above from the parent of the iframe it works. What am I doing wrong?

Answer 1

You need to achieve parent to child communication here. If the iframe is on another domain and you have control over it then you can use Cross-domain post messaging. Please go through the link http://blog.teamtreehouse.com/cross-domain-messaging-with-postmessage