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How to send a cross-document message with HTML?
Create a new web browsing context either by creating new iframe or new window. We can send the data using with postMessage() and it has two arguments. They are as
- message − The message to send
- targetOrigin − Origin name
Let us see an example to send a message from iframe to button:
var iframe = document.querySelector('iframe');
var button = document.querySelector('button');
var clickHandler = function(){
iframe.contentWindow.postMessage('The message to send.','https://www.tutorialspoint.com);
}
button.addEventListener('click',clickHandler,false);
Updated on: 29-Jan-2020
129 Views
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