Fixing "The POST method is not supported for route admin/login" in Laravel 12 with Filament 3.2 on aaPanel

When deploying a Laravel 12 application using Filament 3.2 on an Ubuntu 24 server with aaPanel, you might run into the following error:

The POST method is not supported for route admin/login. Supported methods: GET, HEAD.

✅ The Problem

This error typically doesn't appear when you're working locally. Everything might work perfectly on your local development machine, but as soon as you deploy it to a production server using aaPanel, you face this issue.

The core of the problem lies in how Nginx (via aaPanel) handles URL rewriting. Laravel relies on correctly passing all requests to index.php, especially when handling POST requests like login attempts.

By default, if Nginx is not properly configured, it may only handle GET requests correctly while ignoring POST routes (such as admin/login from Filament).

✅ The Solution

To solve this issue, you need to modify the Nginx configuration for your site via aaPanel. Specifically, update the URL rewrite rules to ensure all request methods (GET, POST, etc.) are correctly forwarded to Laravel's index.php.

Update your Nginx rewrite configuration to the following:

location / {
    try_files $uri $uri/ /index.php$is_args$query_string;
}

location ^~ /livewire {
    try_files $uri $uri/ /index.php?$query_string;
}

 

✅ How to Apply the Fix in aaPanel

1. Log in to your aaPanel dashboard.

2. Go to Website > select your Laravel domain > click Config.

3. Scroll down to find the URL rewrite section.

4. Replace the existing rewrite rules with the ones above.

5. Save the configuration and reload Nginx.

✅ Why This Works

• The try_files directive ensures that any request (including POST) will be passed to index.php if no file or directory is found that matches the URI.

• Laravel’s routing system will then properly handle the request, including POST requests to /admin/login.

• The /livewire block ensures Filament’s Livewire components also work correctly.

✅ Final Notes

• Always clear your Laravel cache after deployment:

  php artisan config:clear
  php artisan route:clear
  php artisan view:clear
  php artisan cache:clear