NGINX conf. Angular 7 + PHP (frontend + backend)

hs-www.conf

upstream frontend {
    server 127.0.0.1:8085;
}

upstream backend {
    server 127.0.0.1:8086;
}

server {
    listen 82;
    server_name project.loc;

    location / {
        proxy_pass http://frontend;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Real-PORT $remote_port;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }

    location /api {
        proxy_pass http://backend;
        proxy_set_header Host $host;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        add_header Access-Control-Allow-Origin *;
        add_header Access-Control-Allow-Headers 'Origin, X-Requested-With, Content-Type, Accept, Authorization';
    }

}

server {
    listen 8085;
    server_name _;
    root /var/www/hs-stats-front/dist;

    location / {
        index index.html
        try_files $uri $uri/ /index.html;
    }

    location ~* \.(gif|jpg|jpeg|png|bmp|wmv|avi|mpg|mpeg|mp4|htm|html|deb|bz2|swf|pdf|ico|txt|woff|woff2)$ {
        expires max;
    }
}

server {
    listen 8086;
    server_name _;
    root /var/www/hs-stats-back;

    location / {
        try_files $uri $uri/ /index.php$request_uri;
    }

    location ~ \.php {
	include snippets/fastcgi-php.conf;
       #fastcgi_index index.php;
        fastcgi_pass unix:/run/php/php7.0-fpm.sock;
    }
}