Base64 in HTML <iframe>
An <iframe> can render an entire HTML page encoded as a data URI, which is handy for previews and sandboxes.
Example
<iframe sandbox title="Preview"
src="data:text/html;base64,PGgxPkhlbGxvITwvaDE+"></iframe>Notes
- Data URI iframes get a unique opaque origin, so they cannot access the parent page.
- Add sandbox to restrict scripts in untrusted content.
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