I've been building a site for a client using CRA(create-react-app) and react-router v4.2.0 and was unaware of the implications regarding google's SEO. When I index the page from Google Search Console, I get this:

I found several similar issues which suggested adding 'babel-polyfill' to my entry point, but this only causes my root component to render in the console, not taking into account my react-router routes. I'm aware that CRA is not designed for SSR. I was hoping to find a workaround within CRA, or migrate gracefully to another library such as Next.js without having to rebuild the entire site. Let me know if any additional information is needed. Thanks for any suggestions.