Google webtools: Fetch and Render shows blank page - angularjs

Website is made using AngularJS with Nginx. The partial status in fetch and render is due to fetching user info without authentication which is fine.
GoogleBot renders a perfect blank page on doing Fetch and Render. The site is rendering fine in Chrome, Firefox and Safari. There must be some errors when GoogleBot renders page. Where can I find the log of the errors? Or something like developers console does exist for GoogleBot too?

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I already tried verifying the initalizeApp function from firebase and check all the logs, I'm not even sure what I should be looking for.

Back button doesn't reload previous page after hitting external 404 using react SPA with Django

I'm making a SPA app with react 18 and Django. I'm having trouble understanding and fixing an issue where after I encounter a 404 and press back, the browser's title changes but doesn't reload the page, even though the URL changes to match the title.
To make it happen, I navigate to the home page, "/". I press a react "Link" to go to "/e" within the SPA. If I press reload on "/e", it works, because I added a path in the django urls.py for "/e" and also a react SPA react router route in my App.js. I then click another link to navigate to "/b". Now that I'm at "/b", which is a a react router route but NOT a django path, and refresh, I get a standard django "natural", non SPA 404.
Pressing browser Back, the title of the "/e" route is correct, and the URL itself of the browser is correct, but the page does not reload my SPA and it stays a 404 page. I do not understand this behavior or know how to fix it.
If I press back one more time, it will THEN reload the spa, and show "/" correctly, then pressing forward forward will get me back to "/b" within the SPA.
What I would like to happen is that pressing back from the 404 will reload "/e" and display it.
I would think it has to do with my routing and cache, but I don't understand how or why. What I think I know is that when I encounter the 404, it wipes my SPA, and there's should be no javascript running, so pressing back should reload my app in my mind. But, it doesn't, it just shows the correct title and URL for "/e" and still the 404 and all the DOM elements remain exactly the same as the 404, there is no load time so pressing back from the natural-backend 404 feels like it's still in the SPA or something, which makes no sense to me.
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React website and When I refresh a page on azure it show 404 not found

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you might want to check all services , sometimes due to this just might be the issue

Page falls when it reloads and gives an ngix error

I have a problem with my ReactJs. I created an app that when a user inputs a username and password, it takes him to his account that has a sidebar menu with different pages and routes. The routes work properly on the local server and when I reload each page, it reloads successfully. Yet, when I deployed my website on a testing server, it falls whenever I refresh the page and returns this error :
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What error trigger the Oops, couldn't load error in kik web app

I am trying to integrate my app into kik, but for a specific action I fall in an error page that says:
Oops, couldn't load. Please try again later.
This panel looks like a kik panel with my app logo at the top
But everything is OK, If I try my app in Chrome with Kik plugin it works well. In fact my app creates an iframe and load it then we use postMessage to communicate between parent and iframe. I put some logs and it seems that everything is OK. Iframe is loaded and send message to parent with postmessage. But when I am in kik, the 'couldn't load' message appears and stops my app.
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I had the exact same problem.
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I use this line to detect Kik and, if detected, ignore browser history updates:
if (!kik.enabled) {
//We are not running in Kik so we can do browser history manipulation here
}
Websites in the Kik browser must be single-page applications. The error screen shows up when the website either fails to load or tries to navigate elsewhere.
Is your website doing any navigation? Also, is there a place where we could take a look at the code?

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