How to pass data to variables in iframe?

@darrion.kuhn 

To pass data to variables in an iframe, you can use the following methods:

1. Using JavaScript: You can access the content of an iframe through the contentWindow or contentDocument properties of the iframe element. Once you have access to the iframe's content, you can manipulate the data within the iframe by setting the value of variables directly using JavaScript.

Example:

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// Get the iframe element
var iframe = document.getElementById('myIframe');

// Access the iframe's content window
var iframeWindow = iframe.contentWindow;

// Set a variable in the iframe content
iframeWindow.myVariable = 'Data to pass';

1. Using URL parameters: If the iframe source is on the same domain as the parent page, you can pass data to the iframe through URL parameters. You can append these parameters to the iframe's src attribute and then access them within the iframe's content using JavaScript.

Example:

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<iframe src="iframe.html?myVariable=Data to pass"></iframe>

1. Using postMessage API: You can also pass data between the parent window and the iframe using the postMessage API. This allows for secure communication between the parent window and the iframe, even if they are on different domains.

Example: Parent window:

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var iframe = document.getElementById('myIframe');

// Send data to the iframe
iframe.contentWindow.postMessage('Data to pass', '*');

Iframe content:

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// Receive data from the parent window
window.addEventListener('message', function(event) {
    var data = event.data;
    // Use the data as needed
});

These are some common ways to pass data to variables in an iframe. Choose the method that best suits your requirements based on the specific scenario.