What is the problem with nextcloud?

Question

Nginx

Installed nextcloud+onlyoffice following the instructions: https://www.onlyoffice.com/blog/ru/2018/08/kak-leg...
Enabled https and an unpleasant glitch appeared: in google chrome, opera and Yandex browsers (in firefox, IE and edge do not have this) when you log in and out of your account, the browser "freezes" on the login page, but it logs in: you press F5 and you find yourself in your account.
How to overcome adversity?

nginx config:

user  www-data;
worker_processes  1;

error_log  /var/log/nginx/error.log warn;
pid        /var/run/nginx.pid;

events {
    worker_connections  1024;
}

http {

    upstream backend {
      server app-server:9000;
    }


    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;

    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    access_log  /var/log/nginx/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    keepalive_timeout  65;

    map $http_host $this_host {
        "" $host;
        default $http_host;
    }

    map $http_x_forwarded_proto $the_scheme {
        default $http_x_forwarded_proto;
        "" $scheme;
    }

    map $http_x_forwarded_host $the_host {
       default $http_x_forwarded_host;
       "" $this_host;
    }

server {
        listen 80;
        server_name share.example.ru 10.12.1.131;
        return 301 https://$server_name$request_uri;
}

    server {
listen 443 ssl http2;
ssl on;
server_name share.example.ru 10.12.1.131;
ssl_certificate /etc/letsencrypt/live/share.example.ru/cert.pem;
ssl_certificate_key /etc/letsencrypt/live/share.example.ru/privkey.pem;

        # Add headers to serve security related headers
        add_header Strict-Transport-Security "max-age=15768000; includeSubDomains; preload;";
        add_header X-Content-Type-Options nosniff;
        add_header X-XSS-Protection "1; mode=block";
        add_header X-Robots-Tag none;
        add_header X-Download-Options noopen;
        add_header X-Permitted-Cross-Domain-Policies none;
  add_header X-Frame-Options "SAMEORIGIN";

        root /var/www/html;
        client_max_body_size 10G; # 0=unlimited - set max upload size
        fastcgi_buffers 64 4K;

        gzip off;

        index index.php;
        error_page 403 /core/templates/403.php;
        error_page 404 /core/templates/404.php;

        rewrite ^/.well-known/carddav /remote.php/dav/ permanent;
        rewrite ^/.well-known/caldav /remote.php/dav/ permanent;

        location = /robots.txt {
            allow all;
            log_not_found off;
            access_log off;
        }

        location ~ ^/(build|tests|config|lib|3rdparty|templates|data)/ {
            deny all;
        }

        location ~ ^/(?:\.|autotest|occ|issue|indie|db_|console) {
            deny all;
        }

        location / {
            rewrite ^/remote/(.*) /remote.php last;
            rewrite ^(/core/doc/[^\/]+/)$ $1/index.html;
            try_files $uri $uri/ =404;
        }

  location ~* ^/ds-vpath/ {
    rewrite /ds-vpath/(.*) /$1  break;
                proxy_pass http://onlyoffice-document-server;
                proxy_redirect     off;

                client_max_body_size 100m;

                proxy_http_version 1.1;
                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection "upgrade";

                proxy_set_header Host $http_host;
                proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
                proxy_set_header X-Forwarded-Host $the_host/ds-vpath;
                proxy_set_header X-Forwarded-Proto $the_scheme;
        }

        location ~ \.php(?:$|/) {
            fastcgi_split_path_info ^(.+\.php)(/.+)$;
            include fastcgi_params;
            fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
            fastcgi_param PATH_INFO $fastcgi_path_info;
            fastcgi_param HTTPS off;
            fastcgi_param modHeadersAvailable true; #Avoid sending the security headers twice
            fastcgi_pass backend;
            fastcgi_intercept_errors on;
        }

        # Adding the cache control header for js and css files
        # Make sure it is BELOW the location ~ \.php(?:$|/) { block
        location ~* \.(?:css|js)$ {
            add_header Cache-Control "public, max-age=7200";
            # Add headers to serve security related headers
            add_header Strict-Transport-Security "max-age=15768000; includeSubDomains; preload;";
            add_header X-Content-Type-Options nosniff;
            add_header X-Frame-Options "SAMEORIGIN";
            add_header X-XSS-Protection "1; mode=block";
            add_header X-Robots-Tag none;
            add_header X-Download-Options noopen;
            add_header X-Permitted-Cross-Domain-Policies none;
            # Optional: Don't log access to assets
            access_log off;
        }

        # Optional: Don't log access to other assets
        location ~* \.(?:jpg|jpeg|gif|bmp|ico|png|swf)$ {
            access_log off;
        }

    }
}

Answer 1

treated by adding to config.php 'overwriteprotocol' => 'https',