There's an issue when you add LibreX to custom search engine on every web browsers

[patchint]

On Firefox I can add it to my search engine but I can't change it to the correct address

I think Firefox added the wrong address :/

On edge I can change it (And I think it's the same on Chrome etc, but I mainly use Firefox)

So, what's wrong with it ? Is it my NGINX configuration or LibreX ?

NGINX

server {
...... # a lot of basic config...
	set $upstream librex:8080;

	location / {
		proxy_pass http://$upstream;
		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;
	}
}
...... # a lot of basic config...

[hnhx]

Seems like the hosters didn't follow the hosting instructions...

Hosters have to make it so opensearch.xml points to their domain.