Nextcloud docker with nginx on host

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Nextcloud version (eg, 20.0.5): 26.0.0
Operating system and version (eg, Ubuntu 20.04): debian 11
Apache or nginx version (eg, Apache 2.4.25): Apache
PHP version (eg, 7.4): replace me

The issue you are facing:
After installing Nextcloud docker apache instance I want to configure external nginx proxy on host to route to nextcloud docker.
Nextcloud in docker is running fine on port 8088 (unencrypted). Nginx conf is like follows:

server {
    listen              80 http2;
    listen              [::]:80 http2;
    #i have the correct domain on the configs
    root /var/www/html;

    index index.php index.html /index.php$request_uri;

    location / {
      proxy_set_header    Host $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-Proto $scheme;
      proxy_read_timeout  36000s;
      client_max_body_size 0;

Trying to access the Nextcloud docker will result in downloading a file and not showing up Nextcloud page.

Is this the first time you’ve seen this error? (Y/N):
Y - initial install

Ok, find out the issue … I had to remove “http2” from nginx config.

You should mark that as solution, btw.