Hey @Aliaskar,

This depends on the browser. Cookies in embedded iframes are usually considered Third Party cookies for the browser and the browser allows/disallows them based on the user’s browser settings. If you have Third party cookies enabled, then they will work in the embedded iframe as well. If the you have them disabled, they'll be disabled in the iframe as well.

Just one thing to note here is that disabling third party cookies may cause no content to show up in the iframe.

Hope this helps Let us know how it goes!