How to deploy laravel with nginx using wildcard - php

Question

I want to deploy my laravel application with nginx using wildcard domain.
But that not work correctly. I have this error:
Corrupted Content Error
The site at http://www.exemple.com/ has experienced a network protocol violation that cannot be repaired.
The page you are trying to view cannot be shown because an error in the data transmission was detected.
Please contact the website owners to inform them of this problem.
An example for my laravel routing
<?php
Route::group(['domain' => "{sub}.exemple.com"], function() {
// load site content
});
This is my nginx configuration:
server {
# Update max body size
client_max_body_size 20M;
# SSL configuration
listen 443 ssl http2 default_server;
listen [::]:443 ssl http2 default_server ipv6only=on;
ssl on;
include /etc/nginx/snippets/self-signed.conf;
include /etc/nginx/snippets/ssl-params.conf;
# Route and app index
root /var/www/site/public;
index index.php index.html;
# Make site accessible from https://www.exemple.com
server_name ~^([a-z]+)\.exemple\.com$;
location / {
if ($http_x_forwarded_proto != "https") {
return 301 https://$1.exemple.com$request_uri;
}
try_files $uri $uri/ /index.php?$query_string;
}
location ~ \.php$ {
try_files $uri =404;
fastcgi_split_path_info ^(.+\.php)(/.+)$;
fastcgi_pass unix:/var/run/php/php7.1-fpm.sock;
fastcgi_index index.php;
fastcgi_param SERVER_NAME $host;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
}
location ~ /\.ht {
deny all;
}
location ~* \.(?:ico|gif|jpe?g|png)$ {
expires 7d;
add_header Pragma public;
add_header Cache-Control "public";
access_log off;
}
location ~* \.(css|js|ttf)$ {
expires 1d;
access_log off;
add_header Cache-Control "public";
}
}