The forwarding delay of windows nginx is very high, and the delay of nginx proxy is very large

When configuring nginx for forwarding on Windows, it is found that the forwarding delay is very high, more than 1 minute.

1. Use http://127.0.0.1:80 

        When requesting the service directly, the delay is normal, about 50ms

2. Through https://domain name:443

        After forwarding through nginx, it takes about 1 minute for some requests to access.

problem solved:

location /api/ {

           #The startup port of this backend program
           root C:\5G\5GApi; #Site directory.
           proxy_pass http://localhost:8888/;
          }

Change proxy_pass http://localhost:8888/; to proxy_pass http://127.0.0.1:8888/;

In this way, the forwarding delay returns to normal.

Specific reasons:

nginx visits localhost first, and then visits 127.0.0.1 after the visit times out

Nginx configuration suggestions:

Try to avoid using localhost

Use real IP, 127.0.0.1 or internal network address or public network IP.