Safari 13 doesn't send cookies with https requests even though the cookie already exists in the browser.

We have an application that has an Iframe inside the main page. When the application launches it access the "abc.com" domain and creates a cookie name with "abc_cookie". Then the browser address bar changed and redirects to the "pqr.com" and loads an iframe inside the main page. When the iframe src was set to "abc.com", above abc_cookie was not sent with an HTTP request. But it was sent with safari 12. I added `SameSite=None` for the cookie but no success. How can I make this work in Safari 13 as well?