跨域 postMessage

gistfile1.txt

//原始网站区域

(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','https://www.google-analytics.com/analytics.js','ga');


ga('create', 'UA-104793185-3', 'auto');
ga('send', 'pageview');
// ga('require', 'linker');
// ga('linker:autoLink', ['https://go2sleep-official.myshopify.com'], false, true);
ga(function(tracker) {
  // Gets the client ID of the default tracker.
  var clientId = tracker.get('clientId');

  // Gets a reference to the window object of the destionation iframe.
  var frameWindow = document.getElementByTagName('iframe').contentWindow;

  // Sends the client ID to the window inside the destination frame.
  frameWindow.postMessage(clientId, 'https://go2sleep-official.myshopify.com');
});



// shopify 的代码区域

window.addEventListener('message', function(event) {
  if (event.origin !== 'https://sleepon.us') return;
  ga('create', 'UA-104793185-3', 'auto', {
    clientId: event.data
  });
});