Signature is missing: multisite image URLs not working with Nginx

[dev4223]

Bug description

Statamic Version: 5.71.0
Multisite with relative URLs (/de/, /fr/, etc.)
Glide secure: true
Working with Apache, but not with Nginx
Glide-URLs are generated with locale-prefix (/de/img/...), but signature is calculated only for /img/...
The images were working before the update to 5.71

How to reproduce

Multisite with relative URLs (/de/, /fr/, etc.) on Nginx

Logs

Environment

Statamic Version: 5.71.0
PHP: 8.4.16
Laravel Version: 11.47.0
Nginx Version: 1.27.2

Installation

Fresh statamic/statamic site via CLI

Additional details

No response

[jasonvarga]

The images were working before the update to 5.71

What version did you come from?

[dev4223]

Unfortunattly I don't know. I downgraded Statamic to 5.67 but got the same behaviour. So maybe it worked once and until it stoped working I saw images from an old glade cache. But I remember clearing the glade cache not so long ago and then it was working. My workaround now is a Nginx redirect of the images URLs with the locale prefix. What makes me uncomfortable is that it's working on another staging server with Apache but not locally with Nginx.

[duncanmcclean]

What does your Nginx config look like?

[dev4223]

This is my nginx.conf. Images are working with the "Glide Multisite Fix".

server {
    listen 127.0.0.1:80;
    server_name s.mysite.local;
    root /srv/www/htdocs/mysite/public;

    # Security headers
    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header Referrer-Policy "no-referrer-when-downgrade" always;

    index index.html index.htm index.php;
    charset utf-8;
    client_max_body_size 20M;

    # Logging
    access_log /var/log/nginx/s.mysite.local_access.log;
    error_log /var/log/nginx/s.mysite.local_error.log;

    # Gzip compression
    gzip on;
    gzip_vary on;
    gzip_proxied any;
    gzip_comp_level 6;
    gzip_types text/plain text/css text/xml text/javascript application/json application/javascript application/xml+rss application/rss+xml font/truetype font/opentype application/vnd.ms-fontobject image/svg+xml;

    # Glide Multisite Fix
    #location ~ ^/(de|es|fr|it|tr|zh|ru|pt|ja)/img/ {
    #    rewrite ^/(de|es|fr|it|tr|zh|ru|pt|ja)/img/(.*)$ /img/$2 permanent;
    #}

    # Main location - Statamic routing
    location / {
        try_files /static${uri}_${args}.html $uri $uri/ /index.php?$query_string;
    }

    # Statamic Glide image manipulation - must come BEFORE static assets!
    location ^~ /img/ {
        try_files $uri /index.php?$query_string;
    }

    # Static assets caching (CSS, JS, Images, Fonts)
    location ~* \.(css|js|jpg|jpeg|gif|png|ico|svg|webp|woff|woff2|ttf|eot|otf)$ {
        expires 1y;
        add_header Cache-Control "public, immutable";
        access_log off;
    }

    # Favicon and robots
    location = /favicon.ico {
        access_log off;
        log_not_found off;
    }

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

    # Error handling
    error_page 404 /index.php;

    # PHP-FPM via Unix socket (faster than TCP/IP)
    location ~ \.php$ {
        try_files $uri =404;
        fastcgi_pass unix:/run/php-fpm/php-fpm.sock;
        fastcgi_index index.php;
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
        include fastcgi_params;
        fastcgi_param SCRIPT_FILENAME $realpath_root$fastcgi_script_name;
        fastcgi_param PATH_INFO $fastcgi_path_info;
        fastcgi_read_timeout 240;
        fastcgi_buffer_size 128k;
        fastcgi_buffers 256 16k;
        fastcgi_busy_buffers_size 256k;
        fastcgi_temp_file_write_size 256k;
    }

    # Deny access to hidden files (except .well-known for Let's Encrypt)
    location ~ /\.(?!well-known).* {
        deny all;
    }

    # Statamic: Deny access to content and config files
    location ~* ^/(content|config|users)/.*\.(yaml|md)$ {
        deny all;
    }
}