I did a lot of tests on this and Google just didn't wait, no matter the configuration. I tested using webmaster tools. The App was built using React, and I ended up implementing SSR to fix the problem. There are a lot of posts that hack this embedding JSON directly on the page. I didn't find any post that figured out a way to make this works through async API requests. I would thank you if you point one in that direction. Maybe I'm doing something wrong.
Interesting, never occurred to me that react-router could be the problem, I will investigate that. But this other post [1] didn't use React at all and made API requests to GitHub with the same problem.
