Why does NGINX turn a POST request into a GET request?

Question

Nginx

I have a nginx webserver that I use to serve static and as a reverse proxy for the Back-End.

Initially, this error did not pop up, but as soon as I tried to make POSTa request, it immediately began to work incorrectly.

This is how my POSTrequest


looks like And this is how my config looks like NGINX


Why after proxying my backend treats this request as GET.
I also read in Google that the body of the request is also lost.

Answer 1

Either remove the last slash in location in nginx, or add it in the request.
https://nginx.org/ru/docs/http/ngx_http_core_modul...

Answer 2

In your case, when proxying URI 1-to-1, it is better not to specify any paths in proxy_pass at all, but only proxy_pass http://localhost:4200;
In this case, the "magic" of rewriting the URI will not work.