Laravel is sending GET instead of POST request while I am actually using post method

PHP version: 7.4.33
Laravel version: 5.8

when I hit the post route, it shows in the error page that I sent it as Get, and this route supports Post.

• this is the error msg: Symfony \ Component \ HttpKernel \ Exception \ MethodNotAllowedHttpException

  The GET method is not supported for this route. Supported methods: POST.

• The route I hit is install/db/configuration

• The details in error msg shows me the method is Get.

  enter image description here

• However, the Method is Post either in the Route or View File.

• I dd($request) for the method in db method controller and it shows prints Post

• I tried all the cache clear commands and the optimize.

• I even made sure the route in the AppServiceProvider hits http not https.

• Here is the Route File:

<?php


Route::post('install/db/configuration'  ,'InstallController@db')->name('store.db.configurations');

Route::get('install/app'                , 'InstallController@installation')->name('installation');
Route::get('install/configuration'      , 'InstallController@configurations')->name('show.configurations');
Route::post('install/configuration'     , 'InstallController@store')->name('store.configurations');
Route::post('install/app/configuration' , 'InstallController@app')->name('store.app.configurations');
Route::get('install/complete'           , 'InstallController@complete')->name('complete.installation');

• Here is the Controller:

class InstallController extends Controller
{
    public function __construct()
    {
        $this->middleware(RedirectIfInstalled::class);
    }

    public function installation(Requirement $requirement)
    {
        return view('install.new', compact('requirement'));
    }

    public function configurations(Requirement $requirement)
    {
        if (! $requirement->satisfied()) {
            return redirect()->name('installation');
        }

        return view('install.db_configuration', compact('requirement'));
    }

    public function db(InstallDatabaseRequest $request,Database $database,App $app)
    {
        $database->setup($request->db);
        $app->setup($request);

        return view('install.app_configuration');
    }

    public function app(InstallAppRequest $request,FinalInstallation $final,AdminAccount $admin)
    {
        $final->setup($request);
        $admin->setup($request);

        return redirect()->route('complete.installation');
    }

    public function complete()
    {
        if (env('APP_INSTALLED') == true) {
            return redirect()->route('dashboard.home');
        }

        DotenvEditor::setKey('APP_INSTALLED', 'true')->save();

        return view('install.complete');
    }
}

Here the setup method in both database and app classes:

class Database
{
    public function setup($data)
    {
        $this->checkDatabaseConnection($data);
        $this->setEnvVariables($data);
    }

    private function checkDatabaseConnection($data)
    {
        $this->setupDatabaseConnectionConfig($data);

        DB::connection('mysql')->reconnect();
        DB::connection('mysql')->getPdo();
    }
    // code goes here
}

class App
{
    public function setup($request)
    {
        $this->generateAppKey();
        $this->setEnvVariables($request);
        $this->setAppSettings($request);
    }

    private function generateAppKey()
    {
        Artisan::call('key:generate', ['--force' => true]);
    }

    private function setEnvVariables($request)
    {
        $env = DotenvEditor::load();

        $env->setKey('APP_ENV'    , 'local');
        $env->setKey('APP_DEBUG'  , 'true');
        $env->setKey('APP_URL'    , url('/') );

        $env->save();
    }
   // code goes here
}

• Here is the Some of the View:

<form method="POST" action="{{ url(route('store.db.configurations')) }}" class="form-horizontal">
        {{ csrf_field() }}
        <div class="box">
         // lots of code goes here for the styling
        <div class="content-buttons clearfix">
            <button type="submit" class="btn btn-primary pull-right install-button">Submit</button>
        </div>
</form>

• AppServiceProcider Code:

public function boot()
    {
        if (app()->environment('production')) {
           app('url')->forceScheme('http');
        }
    }

• Here is route:list for the install/db/configuration route:

|        | GET|HEAD                               | install/app                             | installation
  | App\Http\Controllers\InstallController@installation                       | web,App\Http\Middleware\RedirectIfInstalled   
                                                                         |
|        | POST                                   | install/app/configuration               | store.app.configurations        
  | App\Http\Controllers\InstallController@app                                | web,App\Http\Middleware\RedirectIfInstalled   
                                                                         |
|        | GET|HEAD                               | install/complete                        | complete.installation
  | App\Http\Controllers\InstallController@complete                           | web,App\Http\Middleware\RedirectIfInstalled   
                                                                         |
|        | GET|HEAD                               | install/configuration                   | show.configurations
  | App\Http\Controllers\InstallController@configurations                     | web,App\Http\Middleware\RedirectIfInstalled   
                                                                         |
|        | POST                                   | install/configuration                   | store.configurations
  | App\Http\Controllers\InstallController@store                              | web,App\Http\Middleware\RedirectIfInstalled   
                                                                         |
|        | POST                                   | install/db/configuration                | store.db.configurations
  | App\Http\Controllers\InstallController@db                                 | web,App\Http\Middleware\RedirectIfInstalled   

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