How to insert javascript code in iframe tag?

@lindsey.homenick 

To insert JavaScript code in an iframe tag, you can use the "srcdoc" attribute or the "onload" attribute.

1. Using the "srcdoc" attribute:

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<iframe srcdoc="<script>alert('Hello!')</script>"></iframe>

1. Using the "onload" attribute:

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<iframe src="about:blank" onload="this.contentWindow.document.body.innerHTML = '<script>alert("Hello!")</script>';"></iframe>

Please note that inserting JavaScript code in an iframe can be a security risk, so make sure to only include trusted code.