iframe跨域

向外通知：

iframe外监听：window.addEventListener('message',function(e){  var data = e.data;  console.log(data.info);//some info  console.log(data.action);//dosomething    var height = data.height;  if(height < 250){   height = 250;  }  var ifr = document.getElementById('iframeName').style.height = height + 'px';   });iframe内发消息：window.parent.postMessage({height:$(document).height()}, '*');window.parent.postMessage({action: 'dosomething', info: 'some info'},"*");

　

向内通知：

iframe内监听：window.addEventListener("message", function(e){ var data = e.data; console.log(data.info);//some info console.log(data.action);//dosomething });iframe外发消息：document.getElementById('iframeName').contentWindow.postMessage({action: 'dosomething', info: 'some info'},"*");

　　

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向外通知：iframe外监听：window.addEventListener('message',function(e){vardata=e.data;console.log(data.info);//someinfoconsole.log(data.action);//dosomethingvarheight=data.height;if(height<250){heigh
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