The default login page goes blank after login

Hi, I followed the react-router tutorial here: Build a Shopify app using React Router
and currently after every navigation (create new QR code/back to list) it will redirect to the default login from generating the app. If I enter the domain it will just show a blank page with the following error:

[Report Only] Refused to frame ‘https://accounts.shopify.com/’ because an ancestor violates the following Content Security Policy directive: “frame-ancestors ‘self’”. Understand this error (index):1 Refused to display ‘https://accounts.shopify.com/’ in a frame because it set ‘X-Frame-Options’ to ‘deny’.

If I then navigate back to app/ page and click create new QR code it will redirect back to login again.

I suspect there is an issue with the login page and/or maintaining session after clicking the links The links from the tutorial look like so:

Any help appreciated.