How can I block css code in iframe tag with sandbox attribute
code
<iframe src="https://test.com/" width="100%" height="100%" sandbox="allow-scripts allow-top-navigation allow-presentation allow-orientation-lock allow-modals allow-forms"></iframe>
According to the available attributes of sandbox, you CAN'T.
https://developer.mozilla.org/en-US/docs/Web/HTML/Element/iframe#attr-sandbox
One option would be to use ajax to fetch the document, parse and remove the css before using the html. Or if the document is in your own control, use ajax to obtain just the html you want.