Your software
My Mautic version is: 2.15.3
My PHP version is: PHP Version 7.2.24-1+ubuntu18.04.1+deb.sury.org+1
Your problem
If i use just email to register a form everything is fine. But when i use social login i get
app.js?vbfd772b4:237 Uncaught DOMException: Blocked a frame with origin "https://marketing.domain.com" from accessing a cross-origin frame.
at HTMLDocument.<anonymous> (https://marketing.domain.com/media/js/app.js?vbfd772b4:237:347)
at fire (https://marketing.domain.com/media/js/libraries.js?vbfd772b4:328:299)
at Object.fireWith [as resolveWith] (https://marketing.domain.com/media/js/libraries.js?vbfd772b4:333:198)
at Function.ready (https://marketing.domain.com/media/js/libraries.js?vbfd772b4:340:11)
at HTMLDocument.completed (https://marketing.domain.com/media/js/libraries.js?vbfd772b4:340:291)
I do not have CORS enabled, and besides, if it were CORS then the email one would fail also correct?