nginx proxy pass forward subdirectory & preserve url

Question

I have setup two servers with nginx -

1. https://dev.imagecompressor.io at 35.231.119.158
2. https://imagecompressor.io at 176.9.41.138

I am trying to forward https://imagecompressor.io/site to https://dev.imagecompressor.io/site & want the url remain https://imagecompressor.io/site.

Forwarding is doing ok but the subdirectory /site/ seems to be omitted & URL is also changed.

NGINX configuration at 176.9.41.138

location /site/ {
        proxy_pass http://dev.imagecompressor.io;
        # error_log /var/log/nginx/site_error.log debug;
        proxy_redirect off;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header Host imagecompressor.io;
        # proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }

Answer 1

I think you must change this line:

proxy_pass http://dev.imagecompressor.io;

to this:

proxy_pass http://dev.imagecompressor.io/site;

And if you want to change URL to new URL use this:

proxy_set_header Host  http://dev.imagecompressor.io;

else you can use it:

proxy_set_header Host $host;