Source Code:
<!DOCTYPE html> <html> <body> <iframe src="demo_iframe_sandbox.htm" sandbox=""> <p>Your browser does not support iframes.</p> </iframe> <p>The "Get date and time" button will run a script in the inline frame.</p> <p>Since the sandbox attribute is set to an empty string (""), the content of the inline frame is not allowed to run scripts.</p> <p>Add "allow-scripts" to the sandbox attribute, to allow the JavaScript to run.</p> <p><strong>Note:</strong> The sandbox attribute is not supported in Internet Explorer 9 and earlier versions, or in Opera.</p> </body> </html>
Result:
W3Schools.com
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