Authentication popup is the login popup that will appear if customer who are not logged in press Proceed to Checkout button in cart page.
For default, when customer sign in using authentication popup they will be redirected to the previous page (cart page).
I want to modify the redirect url after customer sign in from authentication pop up, they'll redirected to custom page. I have trying to locate the form action in
Magento_Customer/view/frontend/web/js/view/authentication-popup.js but i can't find it.