How to Integrate Angular SPA into Azure AD user flow Custom Page Layout?

Hi Team,
I wanted to integrate my Angular Single Page Application into Azure AD B2C user flow custom Page layout.
The issue is when I put that routing URL to that Custom page layout Uri. Its not taken up the routing and its not loading when I Run User Flow.
When I checked in developer tools of the browser. I could see my JavaScript's are not loaded in the Body tags. I mean JavaScript's of Angular Apps like (main.js, vendor.js, polyfills.js etc.,)
Because of that my page is not loaded.
Could some one help on this. it will be really helpful if it has been fixed and it will reduce my rework.
Regards,
Prabu