How to change iframe source?

@jasen 

To change the source of an iframe, you can use JavaScript to dynamically set the "src" attribute of the iframe element. Here's how you can do it:

1. Get a reference to the iframe element:

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var iframe = document.getElementById("your-iframe-id");

1. Set the new source URL:

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var newSourceUrl = "http://example.com/newpage.html";

1. Update the src attribute of the iframe element:

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iframe.src = newSourceUrl;

By following these steps, you can change the source of an iframe dynamically using JavaScript.