How to implement Drag and drop from iframe to page?

Question

JavaScript

There is a page with iframe. The page has a textarea text input field.
Another site is open in the iframe. It is necessary that if I select some text in the iframe and drag it to the textarea on the parent page, then it will be successfully dragged there.

How to do it?

Answer 1

No way. This is XSS. It is disabled for security reasons.

Answer 2

In any way, through iframe in general it is impossible to receive the data from other page in any way. Don't steal passwords.